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                  Monitoring Network
   Hazard Map
                  Volcano Observatory

NAME OF VOLCANO:                       TAAL
LOCATION:                                         Batangas (14°00.1' N, 120°59.1' E)

PHYSICAL FEATURES
Elevation: 0.311 km
Type of Volcano: Complex
Crater Lakes/Caldera/Maars:

MAIN CRATER LAKE - 1.9 km in diameter; blue-green in color, 4 m above sea level, deepest point: 76m                                                  

Taal Volcano Island has 47 craters and 4 maars

TAAL CALDERA - 25 km across and formed between 140,000 to 5,380 BP

TAAL LAKE - inside the caldera; 267 sq. km and 2 m above sea level

Adjacent Volcanic Edifice: Makiling (NE) Malepunyo (E), Batulao (W) and Macolod (SE)

GEOLOGICAL FEATURES
Rock Type: Olivine basalt, Andesite
Tectonic Setting: Macolod Corridor
Age of Deposits: 5380+_ 170 ybp (Radiocarbon age, Listanco, 1994)

VOLCANIC ACTIVITY
Number of Historical Eruptions: 33
Latest Eruption/Activity: 1977 Oct. 3
Eruption Type:
         1. Phreatic (e.g. 1878, 1911, 1970)
         2. Phreatomagmatic (e.g. 1749, 1965, 1966)
         3. Strombolian (e.g. 1968, 1969)
         4. Plinian (e.g. 1754)
Precursors to Eruptions:
         1. Increase in frequency of quakes with occasional felt events accompanied by rumbling sounds
         2. Increase in temperature and level of Main Crater Lake
         3. Development of new thermal areas and/or reactivation of old ones
         4. Ground swells or inflation and ground fissuring
         5. Increase in temperature of ground probe holes at Mt. Tabaro
         6. Sulfuric odor and acrid fumes
         7. Fish kills and drying up of vegetation

VOLCANIC HAZARDS
Type of Hazards:
               1. Base surges
               2. Ashfalls and ballistic projectiles
               3. Lava flows
               4. Seiches/Tsunamis and flooding
               5. Lakeshore landslide
               6. Fissuring and ground subsidence
Permanent Danger Zone: Entire Volcano Island
Other Buffer Zones: Lakeshore barangays of Talisay, Agoncillo, San Nicolas and Laurel
Areas To be Evacuated:

In case of an eruption similar in nature and magnitude to:

1965 ACTIVITY - entire Volcano Island and four lakeshore barangays of Agoncillo and Laurel

1911 ACTIVITY - entire Volcano Island and lakeshore barangays of Talisay, Tanauan, Agoncillo,                                         Balete, San Nicolas and Laurel

Additional areas to be evacuated shall be determined based on the development in eruptive style and location of the monitored parameters.

MONITORING ACTIVITY
Volcano Observatory: Taal Volcano Observatory, Buco, Talisay - 9.7 km N of Main Crater
                                       (120°59.06’E, 14°05.10’N)
Monitoring Methods:

1. Seismic monitoring (number of volcanic quakes and tremors)
2. Visual observations
3. Ground deformation (EDM, precise leveling, tilt)
4. Main Crater Lake chemistry, temperature and level


Monitoring Stations

A – Seismic Network
     · Central Receiving & Processing Station: Taal Volcano Observatory, Buco, Talisay
     · Seismic stations: Binintiang Munti, Calauit, Main Crater and Pira-piraso
     · Repeater stations: Tagbakin, Napayung and Daang Kastila

B – Ground Deformation Network
    · EDM lines: Tagbakin (instrument site) to Calauit (2 lines), . Buco (instrument site) to Pira-piraso         (2 lines), Bilibinwang (instrument site) to Saluyan, Eruption Site (Tabaro), Alas-as
    · Precise leveling lines: Calauit, Kaygabok Alas-as, Pira-piraso
    · Electronic tilt: Daang Kastila, Calauit

LATEST NEWS

September 12, 2019

EARTHQUAKE MODEL ATLAS LAUNCHED TO PREPARE METRO DAVAO FOR ‘THE BIG ONES’

The Metro Davao Earthquake Model (MDEM) Atlas was launched last September 4, 2019 at the Grand Regal Hotel in Lanang, Davao City to aid engineers in the earthquake-resilient design of buildings and structures that can minimize the impact of very destructive ground shaking and prevent casualties. DOST-PHIVOLCS reiterates the importance…

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September 02, 2019

PRESS RELEASE: EARTHQUAKE ATLAS FOR BUILDING RESILIENCY IN METRO DAVAO LAUNCHED

The Department of Science and Technology – Philippine Institute of Volcanology and Seismology (DOST – PHIVOLCS) reiterates the importance of structurally-sound buildings as part of earthquake preparedness through the launch of the Metro Davao Earthquake Model (MDEM) Atlas on September 4, 2019 at the Grand Regal Hotel in Lanang, Davao…

530 hits

August 12, 2019

PRESS RELEASE: DOST-PHIVOLCS AND ULB CONCLUDE 5-YEAR TAAL VOLCANO PROJECT WITH PILOT SITES IN BATANGAS

The Department of Science and Technology-Philippine Institute of Volcanology and Seismology (DOST-PHIVOLCS) in collaboration with the Université Libre de Bruxelles (ULB)  will hold its Final General Assembly with the selected pilot communities from the municipalities of Talisay, Laurel, Agoncillo, and San Nicolas, Batangas. The Taal Volcano Project titled “Reducing the…

520 hits

August 08, 2019

PRESS RELEASE: READY, SHAKE, DRILL!

The Department of Science and Technology-Philippine Institute of Volcanology and Seismology (DOST-PHIVOLCS) prompts everyone to do the Duck, Cover, and Hold in participation to the 3rd Quarter Nationwide Simultaneous Earthquake Drill (NSED) that will be held on August 08, 2019. The ceremonial pressing of the button to signal the start…

662 hits

August 05, 2019

SUMMIT FOR A HARMONIZED DISASTER RISK REDUCTION PROGRAM FOR TSUNAMI ORGANIZED

The Department of Science and Technology – Philippine Institute of Volcanology and Seismology (DOST-PHIVOLCS) prepares the public against the threat of tsunami and calls for the creation of a Harmonized National Program on Tsunami Disaster Risk Reduction. A National Tsunami Consultation Workshop will be held on August 5-6, 2019 at…

623 hits

July 29, 2019

PRIMER ON THE 27 JULY 2019 EARTHQUAKES IN BATANES

  Where is Batanes?    Batanes is the northernmost province of the Philippines. It is composed of three major islands namely, Itbayat, Sabtang and Batan. Basco, the capital of Batanes, is located in Batan Island.   What is happening in Batanes?   At 4:16 AM on 27 July 2019, Saturday,…

2620 hits

LATEST ANNOUNCEMENTS

September 21, 2019

BULUSAN VOLCANO BULLETIN 21 September 2019 08:00 A.M.

Bulusan Volcano’s seismic monitoring network recorded five (5) volcanic earthquakes during the 24-hour observation period. Ground deformation from Precise Leveling data obtained on 29 August – 05 September 2019 indicate a slight inflation of the…
September 21, 2019

KANLAON VOLCANO BULLETIN 21 September 2019 08:00 A.M.

Kanlaon Volcano's seismic monitoring network recorded one (1) volcanic earthquake during the 24-hour observation period. Ground deformation data from continuous GPS measurements last 30 August 2019 indicate slight inflation of the edifice. Alert Level 1…
September 21, 2019

MAYON VOLCANO BULLETIN 21 September 2019 08:00 A.M.

Mayon Volcano’s seismic monitoring network did not detect any volcanic earthquake during the 24-hour observation period. Precise leveling data obtained on 16 – 25 July 2019 indicate a slight inflation of the edifice relative to…
September 21, 2019

TAAL VOLCANO BULLETIN 21 September 2019 8:00 A.M.

Taal Volcano’s seismic monitoring network recorded eight (8) volcanic earthquakes during the 24-hour observation period. Field measurements on 19 September 2019 at the western sector of the Main Crater Lake yielded an increase in water…
September 20, 2019

KANLAON VOLCANO BULLETIN 20 September 2019 08:00 A.M.

Kanlaon Volcano's seismic monitoring network did not detect any volcanic earthquake during the 24-hour observation period. Ground deformation data from continuous GPS measurements last 30 August 2019 indicate slight inflation of the edifice. Alert Level…
September 20, 2019

TAAL VOLCANO BULLETIN 20 September 2019 8:00 A.M.

Taal Volcano’s seismic monitoring network recorded twenty-eight (28) volcanic earthquakes during the 24-hour observation period. One of these earthquakes, which occurred at 9:40AM yesterday, was felt at Intensity I with rumbling sound at the Main…
September 20, 2019

MAYON VOLCANO BULLETIN 20 September 2019 08:00 A.M.

Mayon Volcano’s seismic monitoring network did not detect any volcanic earthquake during the 24-hour observation period. Precise leveling data obtained on 16 – 25 July 2019 indicate a slight inflation of the edifice relative to…