Philippine Institute of Volcanology and Seismology
Taal Volcano Bulletin 19 June 2013 8:00 A.M. PDF Print
Wednesday, 19 June 2013 07:42

Taal Volcano’s (14.0000°N, 120.9833°E) seismic network recorded one (1) volcanic earthquake during the past 24-hour observation period. Field measurements last 13 June 2013 at the western sector of the Main Crater Lake yielded a slight decrease in water temperature of 32.5°C from 33.2°C, increase in water level of 0.25 meter from 0.24 meter, and water acidity remained at pH 3.03.  Ground deformation survey in the Volcano Island on 23 May-01 June 2013 denoted slight deflation at Calauit, Alas-as, Pira-piraso, Daang Kastila and New Eruption Site precise leveling lines compared to the February 2013 survey.  However, GPS data for the period of October 2012 to first week of May 2013 show inflationary changes in ground deformation while the edifice is still slightly inflating in general compared to February 2011 baseline data. Carbon dioxide (CO2) emission at the Main Crater Lake increased to 947 tonnes per day on 03 March 2013 compared to 720 tonnes per day last 27 November 2012.

Alert Level 1 remains in effect over Taal Volcano. This means that hazardous eruption is not imminent. The public, however, is reminded that the Main Crater should be strictly off-limits because sudden steam explosions may occur and high concentrations of toxic gases may accumulate. The northern portion of the Main Crater rim, in the vicinity of Daang Kastila Trail, may also become hazardous when steam emission along existing fissures suddenly increases.  Furthermore, the public is also reminded that the entire Volcano Island is a Permanent Danger Zone (PDZ), and permanent settlement in the island is strongly not recommended.

DOST-PHIVOLCS

 
PHIVOLCS Conducts REDAS Training for Iloilo Province PDF Print
Friday, 06 November 2015 13:54

The 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 the Province of Iloilo” was conducted by PHIVOLCS last October 25-30, 2015 in Iloilo City. This training was supported by the Hazard Mapping and Assessment for Effective Community-Based Disaster Risk Management (READY) Project funded by the United Nations Development Programme (UNDP) and Australian Agency for International Development (AusAID).

There was a total of 65 participants from 33 Iloilo municipalities of Ajuy, Anilao, Badiangan, Balasan, Banate, Barotac Viejo, Batad, Bingawan, Cabatuan, Calinog, Carles, Concepcion, Dueñas, Dumangas, Guimbal, Igbaras, Janiuay, Lambunao, Leganes, Lemery, Leon, Maasin, Mina, New Lucena, Oton, Pototan, San Joaquin, San Rafael, Santa Barbara, Sara, Tigbauan, Tubungan and Zarraga including Iloilo City and from the Provincial Government of Iloilo.  Guest participants came from NEDA VI, HLURB VI, OCD VI, PDRRMO-Capiz and PDRRMO-Aklan. The participants were composed of Disaster Managers, Planning Officers, Engineers, IT specialists and others. A total of 62 license keys was issued during the said training. 
The first day of the training served for the introduction of PHIVOLCS, speakers and facilitators, REDAS software, and the Earthquake and Tsunami Alerting Tool (ETAM). In addition, installation of the softwares Exposure Database Module (EDM), Sqlite and Quantum GIS, ETAM and the EDM and MyTracks in android devices was conducted. The following days of the training served for lectures where the participants were taught how to build their own risk database, to determine the maximum credible earthquake in their area, and to conduct earthquake risk assessment, among others.

Iloilo PDRRMC Executive Director Jerry Bionat gave the welcoming and closing remarks for the training. Dr. Bartolome C. Bautista also gave his message during the closing ceremony, along with impressions from representatives of Igbaras and Carles municipalities and the province ICT Office. The speakers and facilitators in the training were Bartolome C. Bautista, Maria Leonila P. Bautista, Winchelle Ian Sevilla, Rhommel N. Grutas, Raymond P. Maximo, Ruffy R. Villanueva, Dave Andrei V. Rivera,  Greggue Ann Lyza T. Castro, Paula Grace V. Baylon, Ramil B. Atando and Jo Arlu Sabar, all from PHIVOLCS, and Robert Z. Quinto from PAGASA.

Photos show exposure database collection survey using GPS, laptops and android devices:

 
MAYON VOLCANO BULLETIN 27 September 2016 8:00 A.M. PDF Print
Tuesday, 27 September 2016 07:39

Mayon Volcano’s seismic monitoring network did not detect any volcanic earthquake during the past 24 hours. Moderate emission of white steam plumes that crept downslope towards east-northeast and northeast was observed. 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 58 tonnes/day on September 26, 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.

 
Finding fault is now easier with the new web-based app from PHIVOLCS PDF Print
Wednesday, 21 September 2016 18:40

PHIVOLCS Fault Finder (http://faultfinder.phivolcs.dost.gov.ph/) is an application capable to do proximity searches to active faults. It may be used to determine the location of Active Faults in an area and to measure the shortest distance between an active fault and a user’s current location, which is determined by the gadget’s tracking device. It may also be used to measure the shortest distance between an active fault and a specific site, which is identified by a user.

The app would be useful for land-use planning, risk assessment, disaster risk reduction plan, and awareness.

This web app is a product of the joint collaboration between the Philippine Institute of Volcanology and Seismology (PHIVOLCS), Department of Science and Technology (DOST), Geological Survey of Japan (GSJ), National Institute of Advanced Industrial Science and Technology (AIST), Japan. It was developed by Dr. Joel C. Bandibas of GSJ with the cooperation of the research and development personnel of PHIVOLCS.

The app uses three base maps, Philippines Geoportal from NAMRIA, Google Maps, and OpenStreet. Information about a particular query includes information on the Distance to the Nearest Active Fault, Fault Name, Fault Segment Name, Year of the Mapping, and Map Scale used during the mapping.If you are currently located, or if want to know the location of active faults, in the Greater Metro Manila Area (GMMA), click "Valley Fault System (VFS)" in the opening page, otherwise, click "Other Fault Systems".

To determine the distance of your current location to the nearest fault, turn on your gadget’s tracking device. Click the “VFS Fault Nearest You” or “Active Fault Nearest You”. You may click on “Active Fault Based on Location” tab if you want to know the distance of a Barangay to the nearest active fault. Or you may choose “Double Click a Place on the Map” and double click your cursor on any area of interest.

You may click “Base Maps” located at the upper rightmost corner of the map, to change maps. Click “Legend” located at the lower rightmost corner of the map to see the legend.

For more information on how to use the Fault Finder, watch the instructional video below.https://www.facebook.com/mabee.cahulogan/videos/10154416261424265/

PHIVOLCS takes the necessary steps to continually improve the accuracy of the fault information reflected in this application. The institute does not guarantee information from third-party sources. The public is advised to consult PHIVOLCS directly for official hazards assessment.

 
MAYON VOLCANO BULLETIN 19 June 2013 8:00 A.M. PDF Print
Wednesday, 19 June 2013 07:43

Mayon Volcano’s (13.2500°N, 123.6833°E) seismic network did not detect any volcanic earthquake during the past 24-hour observation period. Steaming activity was not observed due to thick clouds covering the summit crater. No crater glow was observed last night. Sulfur dioxide (SO2) emission on 14 June 2013 was measured at an average of 133 tonnes/day. Ground deformation survey (precise levelling) on the third week of May 2013 showed slight inflation of the edifice compared to February 2012, with the volcano still slightly inflated compared to January 2010 baselines.

Mayon Volcano’s alert status remains at Alert Level 1, 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.

DOST-PHIVOLCS

 
<< Start < Prev 1 2 3 4 5 6 7 8 Next > End >>

Page 1 of 8