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:

 
SEM-Calaca Power Corporation undergoes REDAS Training PDF Print
Tuesday, 03 May 2016 15:17

Through the initiative of SEM-Calaca Power Corporation, a subsidiary of Semirara Mining & Power Corporation, the PHIVOLCS-REDAS Team conducted a six-day 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 SEM-Calaca Power Corporation”. The training was held last February 1-6, 2015 at the SEM-Calaca 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 hands-on 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.

Trainees perform hands-on exercises using  REDAS

Fieldwork using REDAS EDM Android Tool

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. Bañes, Jehan Fe. S. Panti, and Yvan F. Pagdonsolan.

 
TAAL VOLCANO BULLETIN 17 April 2016 8:00 A.M. PDF Print
Sunday, 17 April 2016 07:35

Taal Volcano’s seismic monitoring network did not detect any volcanic earthquake during the past 24 hours. Field measurements conducted on 14 April 2016 at the western sector of the Main Crater Lake yielded an increase in water temperature from 32.3°C to 32.9°C, a decrease in water level from 0.28 meter to 0.22 meter, and an increase in acidity from pH 3.00 to 2.97. Ground deformation measurements through precise leveling surveys from 28 March to 8 April 2016 indicated slight deflation of the edifice compared to November 2015 survey. However, ground deformation from continuous GPS data as of February 26, 2016 indicated an inflationary trend since July 2014. Carbon dioxide (CO2) emission at the Main Crater Lake decreased to 1380 tons/day in January 2016 from 1566 tons/day in October 2015.

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.

 
TAAL VOLCANO BULLETIN 28 May 2016 8:00 A.M. PDF Print
Saturday, 28 May 2016 07:28

Taal Volcano’s seismic monitoring network did not detect any volcanic earthquake during the past 24 hours. Field measurements conducted on 26 May 2016 at the eastern sector of the Main Crater Lake yielded a slight increase in water temperature from 33.2°C to 33.5°C, a steady water level at 0.16 meter, and an increase in water acidity from pH 2.96 to 2.75. Precise leveling survey results from 28 March to 8 April 2016 indicated slight deflation of the edifice compared to November 2015 survey. Results from continuous GPS data as of 30 April 2016 showed deflationary trend since January 2016, however the edifice remains inflated relative to the 2014 baseline level.

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

 
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