Bulletin | Volcano Update

Aug 25

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August 25, 2017

Jun 16

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June 16, 2017

Oct 12

Bulusan Volcanos seismic monitoring network recorded three 3 volcanic earthquakes during the past 24 hours. Weak to moderate emission of white steam plumes that rose up to 500 meters from the active vents that drifted southeast was observed. Sulfur dioxide SO2 emission was measured at an average of 493 tonnesday on October 9, 2016. Precise leveling data obtained on August 1625, 2016 indicated slight inflationary changes of the edifice relative to May 2016. Moreover, ground deformation data from continuous GPS measurements as of 30 September 2016 showed inflationary trends since July 2016. Alert Level 1 abnormal remains in effect over Bulusan Volcano. This indicates that hydrothermal processes are underway beneath the volcano that may lead to more steamdriven eruptions. The local government units and the public are reminded that entry to the 4kilometer radius Permanent Danger Zone PDZ is strictly prohibited due to the possibility of sudden and hazardous steamdriven or phreatic eruptions. Civil aviation authorities must also advise pilots to avoid flying close to the volcanos summit as ash from any sudden phreatic eruption can be hazardous to aircraft. Furthermore, people living within valleys and along riverstream channels especially on the southwest and northwest sector of the edifice should be vigilant against sedimentladen stream flows and lahars in the event of heavy and prolonged rainfall. DOSTPHIVOLCS is closely monitoring Bulusan Volcanos condition and any new development will be relayed to all concerned.


October 12, 2016

Oct 12

Kanlaon Volcanos seismic monitoring network recorded five 5 volcanic earthquakes during the past 24 hours. No steaming was observed during times when summit crater was visible. Ground deformation data from continuous GPS measurements as of 30 September 2016 indicated no significant change of the Kanlaon edifice since August 2016. Alert Level 1 status remains in effect over Kanlaon Volcano, which means that it is currently in a state of unrest probably driven by hydrothermal processes that could generate more minor eruptions. The local government units and the public are reminded that entry into the 4kilometer radius Permanent Danger Zone PDZ is strictly prohibited due to the further possibilities of sudden and hazardous steamdriven or minor ash eruptions. Civil aviation authorities must also advise pilots to avoid flying close to the volcanos summit as airborne ash from a sudden eruption can be hazardous to aircraft. DOSTPHIVOLCS is closely monitoring Kanlaon Volcanos activity and any new development will be relayed to all concerned.


October 12, 2016

Oct 12

anoes Volcanic Hazards Poster 220161000658 Printing of Volcanoes and Volcanic Hazards Poster October 11, 2016 REQUEST FOR QUOTATION TO ALL INTERESTED SUPPLIERS: The Philippine Institute of Volcanology and Seismology PHIVOLCS hereby invites all interested suppliers to quote their lowest price on the items listed below, subject to the conditions stated below, stating the shortest time of delivery and submit sealed quotation to BAC Secretariat addressed to the BAC Chairman at PHIVOLCS located at C.P. Garcia Avenue, UP Campus, Diliman, Quezon City not later than 5:00 P.M. of October 19, 2016. The ABC is Php 280,000.00: One 1 job order Printing of Volcanoes and Volcanic Hazards Poster Quantity: 20,000 copies Size: 20 x 30 Stock: Foldcote Cal. 12 Color: Full color Others: CD supplied, camera ready materials with UV Lamination Conditions: All entries must be typewritten. Delivery period, ASAP. Warranty for required for equipment shall be for a minimum period of one 1 year from date of acceptance by the enduser Price validity period must be for a period of one hundred 120 calendar days GEPS Registration Certificate shall be attached upon submission of the requested quotation Suppliers shall submit original brochures showing certifications of the equipment being offered. Brand and Model : Delivery period : Warranty : Price Validity : BARTOLOME C. BAUTISTA BAC Chairman


October 12, 2016

Oct 12

rted Ink Toner P16216 Supply and Delivery of One 1 lot Assorted Ink and Toner October 11, 2016 REQUEST FOR QUOTATION TO ALL INTERESTED SUPPLIERS: The Philippine Institute of Volcanology and Seismology PHIVOLCS hereby invites all interested suppliers to quote their lowest price on the items listed below, subject to the conditions stated below, stating the shortest time of delivery and submit sealed quotation to BAC Secretariat addressed to the BAC Chairman at PHIVOLCS located at C.P. Garcia Avenue, UP Campus, Diliman, Quezon City not later than 5:00 P.M. of October 19, 2016. The ABC is Php 227,360.00: Thirty 30 pieces Canon CL 811 color Thirty 30 pieces Canon PG 810 black Twelve 12 pieces Canon PG 40 black Twelve 12 pieces Canon CL 41 color Twelve 12 pieces Brother TN240 BK Eight 8 pieces Brother TN240 M Eight 8 pieces Brother TN240 C Eight 8 pieces Brother TN240 Y Two 2 sets Drum Unit DR 240 Ten 10 pieces Canon 725 PGBK Ten 10 pieces Canon 726 BK Eight 8 pieces Canon 726 Y Eight 8 pieces Canon 726 M Eight 8 pieces Canon 726 C Conditions: All entries must be typewritten. Delivery period, ASAP. Warranty for required for equipment shall be for a minimum period of one 1 year from date of acceptance by the enduser Price validity period must be for a period of one hundred 120 calendar days GEPS Registration Certificate shall be attached upon submission of the requested quotation Suppliers shall submit original brochures showing certifications of the equipment being offered. Brand and Model : Delivery period : Warranty : Price Validity : BARTOLOME C. BAUTISTA BAC Chairman


October 12, 2016

Oct 12

Mayon Volcanos seismic monitoring network recorded two 2 volcanic earthquakes during the past 24 hours. Moderate emission of white steam plumes that rose up to 250 meters and drifted towards southwest was observed. No crater glow was observed last night. Precise leveling survey results on August 1625, 2016 indicated inflation of the edifice relative to May 2016 consistent with the continuous GPS data and tilt measurements since July 2016. Sulfur dioxide SO2 emission was measured at an average of 424 tonnesday on October 1, 2016. Alert Level 1 remains in effect over Mayon Volcano, which means that it is at abnormal condition. Although this means that presently no magmatic eruption is imminent, it is strongly advised that the public refrain from entering the 6kilometer radius Permanent Danger Zone PDZ due to the perennial lifethreatening dangers of rockfalls, landslidesavalanches at the middle to upper slope, sudden ash puffs and steamdriven or phreatic eruptions from the summit. Active streamriver channels and those identified as perennially laharprone areas on all sectors of the volcano should also be avoided especially during extreme weather conditions when there is heavy and prolonged rainfall. DOSTPHIVOLCS maintains its close monitoring of Mayon Volcano and any new development will be communicated to all concerned stakeholders.


October 12, 2016

Oct 10

Mayon Volcanos seismic monitoring network recorded one 1 volcanic earthquake during the past 24 hours. Moderate emission of white steam plumes that rose 500 meters above the crater and drifted towards southwest were observed. No crater glow was observed last night. Precise leveling survey results on August 1625, 2016 indicated inflation of the edifice relative to May 2016 consistent with the continuous GPS data and tilt measurements since July 2016. Sulfur dioxide SO2 emission was measured at an average of 424 tonnesday on October 1, 2016. Alert Level 1 remains in effect over Mayon Volcano, which means that it is at abnormal condition. Although this means that presently no magmatic eruption is imminent, it is strongly advised that the public refrain from entering the 6kilometer radius Permanent Danger Zone PDZ due to the perennial lifethreatening dangers of rockfalls, landslidesavalanches at the middle to upper slope, sudden ash puffs and steamdriven or phreatic eruptions from the summit. Active streamriver channels and those identified as perennially laharprone areas on all sectors of the volcano should also be avoided especially during extreme weather conditions when there is heavy and prolonged rainfall. DOSTPHIVOLCS maintains its close monitoring of Mayon Volcano and any new development will be communicated to all concerned stakeholders.


October 10, 2016

Oct 10

Mayon Volcano’s seismic monitoring network recorded three (3) volcanic earthquakes during the past 24 hours. Moderate emission of white steam plumes that rose 500 meters above the crater and drifted towards west-southwest, west-northwest and northeast were observed. No crater glow was observed last night. Precise leveling survey results on August 16-25, 2016 indicated inflation of the edifice relative to May 2016 consistent with the continuous GPS data and tilt measurements since July 2016. Sulfur dioxide (SO2) emission was measured at an average of 424 tonnes/day on October 1, 2016. Alert Level 1 remains in effect over Mayon Volcano, which means that it is at abnormal condition. Although this means that presently no magmatic eruption is imminent, it is strongly advised that the public refrain from entering the 6-kilometer radius Permanent Danger Zone (PDZ) due to the perennial life-threatening dangers of rockfalls, landslides/avalanches at the middle to upper slope, sudden ash puffs and steam-driven or phreatic eruptions from the summit. Active stream/river channels and those identified as perennially lahar-prone areas on all sectors of the volcano should also be avoided especially during extreme weather conditions when there is heavy and prolonged rainfall. DOST-PHIVOLCS maintains its close monitoring of Mayon Volcano and any new development will be communicated to all concerned stakeholders.


October 10, 2016

Oct 05

Mayon Volcanos seismic monitoring network recorded one 1 volcanic earthquake during the past 24 hours. Moderate emission of white steam plumes that crept downslope towards southwest was observed. No crater glow was observed last night. Precise leveling survey results on August 1625, 2016 indicated inflation of the edifice relative to May 2016 consistent with the continuous GPS data and tilt measurements since July 2016. Sulfur dioxide SO2 emission was measured at an average of 188.54 tonnesday on September 6, 2016. Alert Level 1 remains in effect over Mayon Volcano, which means that it is at abnormal condition. Although this means that presently no magmatic eruption is imminent, it is strongly advised that the public refrain from entering the 6kilometer radius Permanent Danger Zone PDZ due to the perennial lifethreatening dangers of rockfalls, landslidesavalanches at the middle to upper slope, sudden ash puffs and steamdriven or phreatic eruptions from the summit. Active streamriver channels and those identified as perennially laharprone areas on all sectors of the volcano should also be avoided especially during extreme weather conditions when there is heavy and prolonged rainfall. DOSTPHIVOLCS maintains its close monitoring of Mayon Volcano and any new development will be communicated to all concerned stakeholders.


October 05, 2016

Jun 17

S RELEASE: 25TH YEAR COMMEMORATION OF THE 1991 PINATUBO ERUPTION Thursday, 09 June 2016 13:27 The Philippine Institute of Volcanology and Seismology Department of Science and Technology PHIVOLCSDOST commemorates the 1991 Pinatubo Eruption on its 25th year this June 15, 2016. The Pinatubo eruption is considered one of the largest eruptions of the 20th century. On June 15, 1991, the Plinian eruption of Pinatubo Volcano produced a 40kilometer ash column above its summit. A 1216 kilometer zone of pyroclastic flows the hazardous and dangerous high velocity mixture of hot gases, steam, fragmented rocks and ashes caused nearby cities to be enveloped in total darkness. The thick ash fall that accumulated and made heavier with rainwater from Typhoon Diding Yunya International Name caused roofs of houses to collapse. The ash fall affected not only Luzon Island, but also reached as far as the Indian Ocean. The eruption had also caused global temperatures to decrease by about 0.5C temporarily from 1991 through 1993. Smaller but still dangerous eruptions of ash occurred on the early part of September 1991. Due to the magnitude of the eruption, Pinatubo Volcanos original summit was destroyed, creating a new crater almost 2kilometers wide, which after sometime was filled with water thereby forming a lake months after the eruption. From July to September 1992, a lava dome was formed in the new crater as fresh magma was quietly effused out of Pinatubo Volcano. This dome has since been submerged with the continuous increase of the lake water level. The hazardous effect of the 1991 Pinatubo eruption continued for more than 5 years wherein still hot and thick pyroclastic flow and ash deposits have been remobilized by monsoon and typhoon rains to form a rapidly flowing thick mixture of volcanic materials and water also known as lahars. Several major lahars buried numerous towns and villages including huge area of agricultural land that affected the livelihood of the communities. Prior to the June 15, 1991 eruption, initial signs of restiveness of the Pinatubo Volcano started in April 1991 as reported to PHIVOLCS by residents living in the western flank Zambales area. PHIVOLCS immediately installed a temporary seismic station in Poon Bato, Botolan, Zambales, and with the assistance of the USGS, a Pinatubo Volcano Observatory PVO was set up in Clark Air Base to study and monitor the activities of the volcano. A team of scientists from PHIVOLCS and USGS collaborated to produce hazard maps that were disseminated to local authorities, and Volcano Alert Signals was issued to the Office of the President, the national, regional, and pr


June 17, 2016

Jun 17

S RELEASE: 25TH YEAR COMMEMORATION OF THE 1991 PINATUBO ERUPTION Thursday, 09 June 2016 13:27 The Philippine Institute of Volcanology and Seismology Department of Science and Technology PHIVOLCSDOST commemorates the 1991 Pinatubo Eruption on its 25th year this June 15, 2016. The Pinatubo eruption is considered one of the largest eruptions of the 20th century. On June 15, 1991, the Plinian eruption of Pinatubo Volcano produced a 40kilometer ash column above its summit. A 1216 kilometer zone of pyroclastic flows the hazardous and dangerous high velocity mixture of hot gases, steam, fragmented rocks and ashes caused nearby cities to be enveloped in total darkness. The thick ash fall that accumulated and made heavier with rainwater from Typhoon Diding Yunya International Name caused roofs of houses to collapse. The ash fall affected not only Luzon Island, but also reached as far as the Indian Ocean. The eruption had also caused global temperatures to decrease by about 0.5C temporarily from 1991 through 1993. Smaller but still dangerous eruptions of ash occurred on the early part of September 1991. Due to the magnitude of the eruption, Pinatubo Volcanos original summit was destroyed, creating a new crater almost 2kilometers wide, which after sometime was filled with water thereby forming a lake months after the eruption. From July to September 1992, a lava dome was formed in the new crater as fresh magma was quietly effused out of Pinatubo Volcano. This dome has since been submerged with the continuous increase of the lake water level. The hazardous effect of the 1991 Pinatubo eruption continued for more than 5 years wherein still hot and thick pyroclastic flow and ash deposits have been remobilized by monsoon and typhoon rains to form a rapidly flowing thick mixture of volcanic materials and water also known as lahars. Several major lahars buried numerous towns and villages including huge area of agricultural land that affected the livelihood of the communities. Prior to the June 15, 1991 eruption, initial signs of restiveness of the Pinatubo Volcano started in April 1991 as reported to PHIVOLCS by residents living in the western flank Zambales area. PHIVOLCS immediately installed a temporary seismic station in Poon Bato, Botolan, Zambales, and with the assistance of the USGS, a Pinatubo Volcano Observatory PVO was set up in Clark Air Base to study and monitor the activities of the volcano. A team of scientists from PHIVOLCS and USGS collaborated to produce hazard maps that were disseminated to local authorities, and Volcano Alert Signals was issued to the Office of the President, the national, regional, and provincial disaster coordinating councils, and the media to inform the public of the volcanos activities and advise them on risks and safety measures. Proper coordination of these agencies and institutions, and right forecast of the 1991 Pinatubo eruption resulted to saving of at least 5,000 lives. The eruption affected more than 249,000 families, displacing Aeta or Negrito tribes who lived on the volcanic slopes. The Office of Civil Defense OCD recorded 847 dead, 184 injured, and 23 missing persons. Properties, agricultural lands, water ways, and infrastructures were damaged. Ninoy Aquino International Airport in Metro Manila was also closed for four days. Pinatubo Volcano is straddling the boundaries of Pampanga, Zambales, and Tarlac, and is part of the chain of volcanoes that lies in the central portion of the Zambales Mountain Range. According to radiometric age dating, Pinatubo Volcanos last eruption prior to the 1991 eruption occurred about 400 years ago. On the 25th year of the 1991 Pinatubo eruption, PHIVOLCS encourages everyone to look back and remember not only the tragedy, but also the lessons we learned. Awareness and preparedness would increase our chances against natural hazards and disasters. Through the continuous monitoring, and Information, Education, and Communication IEC campaign of PHIVOLCS, let us keep our communities safe from and resilient to volcanic eruptions, earthquakes, tsunamis and other related hazards. Download Press Release For more information contact: Dr. Renato U. Solidum, Jr.Director Philippine Institute of Volcanology and Seismology PHIVOLCS Bldg., C.P. Garcia Ave., UP Diliman Campus, Quezon City Tel. No: 02 926 2611 or 02 4261468 to 79 www.phivolcs.dost.gov.ph SEMCalaca Power Corporation undergoes REDAS Training Tuesday, 03 May 2016 15:17 Through the initiative of SEMCalaca Power Corporation, a subsidiary of Semirara Mining Power Corporation, the PHIVOLCSREDAS Team conducted a sixday training entitled Mainstreaming Disaster Risk Reduction into the Local Development Planning Process, Contingency Planning and Emergency Preparedness through the Use of the REDAS Software for SEMCalaca Power Corporation. The training was held last February 16, 2015 atthe SEMCalaca Power Corporation power plant in Calaca, Batangas. Trainees who underwent the training totalled to 21. Five of which were from DMCI Power Corporation, 14 from the local government units of Batangas City municipalities of Balayan, Calaca, Calatagan, Lemery, Lian, San Luis, Taal, and Tuy and 2 from the PDRRMO of the province of Batangas. The training started off with introduction about PHIVOLCS, the REDAS software, GPS concepts, and a brief review of basic map reading. The following day concentrated on the utilization of the Exposure Database Module of the REDAS software, and the familiarization of the SQLite environment. In addition, there were also lectures on hydrometeorological, volcanic and earthquake hazards. Furthermore, lectures and handson exercises on SQLite as relational and spatial database system were also provided. As the trainees went midway through the training, they were immersed into the concepts of incorporating and assessing hazards onto the REDAS software, thereby enabling them to produce hazard maps. There was also some time allotted to the conduct of fieldwork, wherein the trainees were able to utilize the capabilities of the REDAS EDM Android Tool. Said activity gave them the opportunity to survey and collect data for their Exposure Databases by using their Android mobile phones. These data were then collected and further analysed before the trainees were taught on how to use the data with the REDAS software. The training was capped with a DRR workshop, which aimed to serve as a stepping stone for the trainees in conceptualizing future plans and propositions for their respective units. Speakers and facilitators during the training were Bartolome C. Bautista, Maria Leonila P. Bautista, Angelito Lanuza, Perla J. Delos Reyes, Dave Andrei V. Rivera, Ruffy R. Villanueva, Lara Jennina A. Gianan, Lawrence Aaron C. Baes, Jehan Fe. S. Panti, and Yvan F. Pagdonsolan. PHIVOLCS Conducts REDAS Training for Bulacan Province Tuesday, 03 May 2016 15:00 PHIVOLCS Conducts REDAS Training for Bulacan Province PHIVOLCS conducted a sixday training entitled Mainstreaming of Disaster Risk Reduction into the Local Development Planning Process, Contingency Planning, and Emergency Preparedness through the Provision and Use of the REDAS Software last March 1419, 2016 for the province of Bulacan. The training was held at Malolos Resort Club Royale, City of Malolos, Bulacan. The goal of the training was to provide and familiarize the participants with the capability of the REDAS Software, especially the modules which are designed to be used for risk assessment. This is the fourth REDAS training batch for the province of Bulacan after the first three batches in 2006, 2011 and 2013. There was a total of 52 participants during the training. Fiftyone of them came from the local government units LGUs of the province of Bulacan, and one guest LGU from Teresa, Rizal. The participants were provided with REDAS version 2.8X. A total of 45 REDAS software license keys issued during the said event. The training covered the installation and orientation on the basic features of REDAS Software, as well as lectures on hazards and basic map reading. Other topics included introduction to PHIVOLCS, Building Risk Database, Earthquake Risk Assessment, the use of SQLite as a Relational and Spatial Database System, and Seismic Hazard Assessment. In addition, other modules such as Exposure Database Module EDM, SQLite and Quantum GIS, and the EDM and MyTracks in Android devices were also installed and used during the training. The participants were taught how to use the EDM in Android Devices for conducting building survey. Different earthquake risk assessment methodologies and computations were also taught as well as identifying building earthquake damage levels for conducting earthquake risk assessment. The participants showed enthusiasm during the duration of the training. According to them, the tool will be able to help them determine the possible impacts from given earthquake scenarios. The convenience of the EDM for Android Devices was also a big help for them to prepare and plan accordingly. Speakers and facilitators during the training were Renato U. Solidum Jr, Bartolome C. Bautista, Maria Leonila P. Bautista, Angelito G. Lanuza, Rhommel N. Grutas, Myleen C. Enriquez, Dave Andrei V. Rivera, Ruffy R. Villanueva, John Ted S. Sison, Anne Lorraine T. Delos Santos, Chayserie A. Moises, Clint Drexel M. Ongue, and Joana C. Umbaa. READY, SHAKE, GO Monday, 25 April 2016 16:26 Government Agencies and Local Government Units LGUs participated in the 1st Quarter Nationwide Simultaneous Earthquake Drill NSED that was held last April 21, 2016. The ceremonial pushing of the button to signal the start of the Nationwide Earthquake Drill took place at Air Force City, Clark, Pampanga. Some employees and members of the Philippine Air Force simulated the Duck, Cover and Hold DCH, and evacuated from their buildi


June 17, 2016

Jun 17

S RELEASE: 25TH YEAR COMMEMORATION OF THE 1991 PINATUBO ERUPTION Thursday, 09 June 2016 13:27 The Philippine Institute of Volcanology and Seismology Department of Science and Technology PHIVOLCSDOST commemorates the 1991 Pinatubo Eruption on its 25th year this June 15, 2016. The Pinatubo eruption is considered one of the largest eruptions of the 20th century. On June 15, 1991, the Plinian eruption of Pinatubo Volcano produced a 40kilometer ash column above its summit. A 1216 kilometer zone of pyroclastic flows the hazardous and dangerous high velocity mixture of hot gases, steam, fragmented rocks and ashes caused nearby cities to be enveloped in total darkness. The thick ash fall that accumulated and made heavier with rainwater from Typhoon Diding Yunya International Name caused roofs of houses to collapse. The ash fall affected not only Luzon Island, but also reached as far as the Indian Ocean. The eruption had also caused global temperatures to decrease by about 0.5C temporarily from 1991 through 1993. Smaller but still dangerous eruptions of ash occurred on the early part of September 1991. Due to the magnitude of the eruption, Pinatubo Volcanos original summit was destroyed, creating a new c


June 17, 2016

Jun 17

S RELEASE: 25TH YEAR COMMEMORATION OF THE 1991 PINATUBO ERUPTION Thursday, 09 June 2016 13:27 The Philippine Institute of Volcanology and Seismology Department of Science and Technology PHIVOLCSDOST commemorates the 1991 Pinatubo Eruption on its 25th year this June 15, 2016. The Pinatubo eruption is considered one of the largest eruptions of the 20th century. On June 15, 1991, the Plinian eruption of Pinatubo Volcano produced a 40kilometer ash column above its summit. A 1216 kilometer zone of pyroclastic flows the hazardous and dangerous high velocity mixture of hot gases, steam, fragmented rocks and ashes caused nearby cities to be enveloped in total darkness. The thick ash fall that accumulated and made heavier with rainwater from Typhoon Diding Yunya International Name caused roofs of houses to collapse. The ash fall affected not only Luzon Island, but also reached as far as the Indian Ocean. The eruption had also caused global temperatures to decrease by about 0.5C temporarily from 1991 through 1993. Smaller but still dangerous eruptions of ash occurred on the early part of September 1991. Due to the magnitude of the eruption, Pinatubo Volcanos original summit was destroyed, creating a new crater almost 2kilometers wide, which after sometime was filled with water thereby forming a lake months after the eruption. From July to September 1992, a lava dome was formed in the new crater as fresh magma was quietly effused out of Pinatubo Volcano. This dome has since been submerged with the continuous increase of the lake water level. The hazardous effect of the 1991 Pinatubo eruption continued for more than 5 years wherein still hot and thick pyroclastic flow and ash deposits have been remobilized by monsoon and typhoon rains to form a rapidly flowing thick mixture of volcanic materials and water also known as lahars. Several major lahars buried numerous towns and villages including huge area of agricultural land that affected the livelihood of the communities. Prior to the June 15, 1991 eruption, initial signs of restiveness of the Pinatubo Volcano started in April 1991 as reported to PHIVOLCS by residents living in the western flank Zambales area. PHIVOLCS immediately installed a temporary seismic station in Poon Bato, Botolan, Zambales, and with the assistance of the USGS, a Pinatubo Volcano Observatory PVO was set up in Clark Air Base to study and monitor the activities of the volcano. A team of scientists from PHIVOLCS and USGS collaborated to produce hazard maps that were disseminated to local authorities, and Volcano Alert Signals was issued to the Office of the President, the national, regional, and provincial disaster coordinating councils, and the media to inform the public of the volcanos activities and advise them on risks and safety measures. Proper coordination of these agencies and institutions, and right forecast of the 1991 Pinatubo eruption resulted to saving of at least 5,000 lives. The eruption affected more than 249,000 families, displacing Aeta or Negrito tribes who lived on the volcanic slopes. The Office of Civil Defense OCD recorded 847 dead, 184 injured, and 23 missing persons. Properties, agricultural lands, water ways, and infrastructures were damaged. Ninoy Aquino International Airport in Metro Manila was also closed for four days. Pinatubo Volcano is straddling the boundaries of Pampanga, Zambales, and Tarlac, and is part of the chain of volcanoes that lies in the central portion of the Zambales Mountain Range. According to radiometric age dating, Pinatubo Volcanos last eruption prior to the 1991 eruption occurred about 400 years ago. On the 25th year of the 1991 Pinatubo eruption, PHIVOLCS encourages everyone to look back and remember not only the tragedy, but also the lessons we learned. Awareness and preparedness would increase our chances against natural hazards and disasters. Through the continuous monitoring, and Information, Education, and Communication IEC campaign of PHIVOLCS, let us keep our communities safe from and resilient to volcanic eruptions, earthquakes, tsunamis and other related hazards. Download Press Release For more information contact: Dr. Renato U. Solidum, Jr.Director Philippine Institute of Volcanology and Seismology PHIVOLCS Bldg., C.P. Garcia Ave., UP Diliman Campus, Quezon City Tel. No: 02 926 2611 or 02 4261468 to 79 www.phivolcs.dost.gov.ph SEMCalaca Power Corporation undergoes REDAS Training Tuesday, 03 May 2016 15:17 Through the initiative of SEMCalaca Power Corporation, a subsidiary of Semirara Mining Power Corporation, the PHIVOLCSREDAS Team conducted a sixday training entitled Mainstreaming Disaster Risk Reduction into the Local Development Planning Process, Contingency Planning and Emergency Preparedness through the Use of the REDAS Software for SEMCalaca Power Corporation. The training was held last February 16, 2015 atthe SEMCalaca Power Corporation power plant in Calaca, Batangas. Trainees who underwent the training totalled to 21. Five of which were from DMCI Power Corporation, 14 from the local government units of Batangas City municipalities of Balayan, Calaca, Calatagan, Lemery, Lian, San Luis, Taal, and Tuy and 2 from the PDRRMO of the province of Batangas. The training started off with introduction about PHIVOLCS, the REDAS software, GPS concepts, and a brief review of basic map reading. The following day concentrated on the utilization of the Exposure Database Module of the REDAS software, and the familiarization of the SQLite environment. In addition, there were also lectures on hydrometeorological, volcanic and earthquake hazards. Furthermore, lectures and handson exercises on SQLite as relational and spatial database system were also provided. As the trainees went midway through the training, they were immersed into the concepts of incorporating and assessing hazards onto the REDAS software, thereby enabling them to produce hazard maps. There was also some time allotted to the conduct of fieldwork, wherein the trainees were able to utilize the capabilities of the REDAS EDM Android Tool. Said activity gave them the opportunity to survey and collect data for their Exposure Databases by using their Android mobile phones. These data were then collected and further analysed before the trainees were taught on how to use the data with the REDAS software. The training was capped with a DRR workshop, which aimed to serve as a stepping stone for the trainees in conceptualizing future plans and propositions for their respective units. Speakers and facilitators during the training were Bartolome C. Bautista, Maria Leonila P. Bautista, Angelito Lanuza, Perla J. Delos Reyes, Dave Andrei V. Rivera, Ruffy R. Villanueva, Lara Jennina A. Gianan, Lawrence Aaron C. Baes, Jehan Fe. S. Panti, and Yvan F. Pagdonsolan. PHIVOLCS Conducts REDAS Training for Bulacan Province Tuesday, 03 May 2016 15:00 PHIVOLCS Conducts REDAS Training for Bulacan Province PHIVOLCS conducted a sixday trai


June 17, 2016

Jun 17

S RELEASE: 25TH YEAR COMMEMORATION OF THE 1991 PINATUBO ERUPTION Thursday, 09 June 2016 13:27 The Philippine Institute of Volcanology and Seismology Department of Science and Technology PHIVOLCSDOST commemorates the 1991 Pinatubo Eruption on its 25th year this June 15, 2016. The Pinatubo eruption is considered one of the largest eruptions of the 20th century. On June 15, 1991, the Plinian eruption of Pinatubo Volcano produced a 40kilometer ash column above its summit. A 1216 kilometer zone of pyroclastic flows the hazardous and dangerous high velocity mixture of hot gases, steam, fragmented rocks and ashes caused nearby cities to be enveloped in total darkness. The thick ash fall that accumulated and made heavier with rainwater from Typhoon Diding Yunya International Name caused roofs of houses to collapse. The ash fall affected not only Luzon Island, but also reached as far as the Indian Ocean. The eruption had also caused global temperatures to decrease by about 0.5C temporarily from 1991 through 1993. Smaller but still dangerous eruptions of ash occurred on the early part of September 1991. Due to the magnitude of the eruption, Pinatubo Volcanos original summit was destroyed, creating a new crater almost 2kilometers wide, which after sometime was filled with water thereby forming a lake months after the eruption. From July to September 1992, a lava dome was formed in the new crater as fresh magma was quietly effused out of Pinatubo Volcano. This dome has since been submerged with the continuous increase of the lake water level. The hazardous effect of the 1991 Pinatubo eruption continued for more than 5 years wherein still hot and thick pyroclastic flow and ash deposits have been remobilized by monsoon and typhoon rains to form a rapidly flowing thick mixture of volcanic materials and water also known as lahars. Several major lahars buried numerous towns and villages including huge area of agricultural land that affected the livelihood of the communities. Prior to the June 15, 1991 eruption, initial signs of restiveness of the Pinatubo Volcano started in April 1991 as reported to PHIVOLCS by residents living in the western flank Zambales area. PHIVOLCS immediately installed a temporary seismic station in Poon Bato, Botolan, Zambales, and with the assistance of the USGS, a Pinatubo Volcano Observatory PVO was set up in Clark Air Base to study and monitor the activities of the volcano. A team of scientists from PHIVOLCS and USGS collaborated to produce hazard maps that were disseminated to local authorities, and Volcano Alert Signals was issued to the Office of the President, the national, regional, and provincial disaster coordinating councils, and the media to inform the public of the volcanos activities and advise them on risks and safety measures. Proper coordination of these agencies and institutions, and right forecast of the 1991 Pinatubo eruption resulted to saving of at least 5,000 lives. The eruption affected more than 249,000 families, displacing Aeta or Negrito tribes who lived on the volcanic slopes. The Office of Civil Defense OCD recorded 847 dead, 184 injured, and 23 missing persons. Properties, agricultural lands, water ways, and infrastructures were damaged. Ninoy Aquino International Airport in Metro Manila was also closed for four days. Pinatubo Volcano is straddling the boundaries of Pampanga, Zambales, and Tarlac, and is part of the chain of volcanoes that lies in the central portion of the Zambales Mountain Range. According to radiometric age dating, Pinatubo Volcanos last eruption prior to the 1991 eruption occurred about 400 years ago. On the 25th year of the 1991 Pinatubo eruption, PHIVOLCS encourages everyone to look back and remember not only the tragedy, but also the lessons we learned. Awareness and preparedness would increase our chances against natural hazards and disasters. Through the continuous monitoring, and Information, Education, and Communication IEC campaign of PHIVOLCS, let us keep our communities safe from and resilient to volcanic eruptions, earthquakes, tsunamis and other r


June 17, 2016

Observations

Aug 14

OBSERVATION All roads in the city remain passable for all types of vehicles.


Situations

Aug 14

SITUATION : normal situation