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00 volcano icon for bulletin  This is to notify the public and concerned authorities on the current activity of Taal Volcano.

Since raising the alert level of Taal Volcano to Alert Level 1 last March 28, 2019, the Taal Volcano seismic network has recorded 4857 volcanic earthquakes as of today (December 1, 2019). Some of these earthquakes were felt with intensity ranging from Intensity I (Scarcely Perceptible) to Intensity III (Weak Shaking) in Brgy. Banyaga, Agoncillo; Brgy. Calauit, Balete; Sitio Tibag, Brgy. Pira-Piraso, Sitio Tuuran, Brgy. Tabla, and Brgy. Buco, Talisay; and Brgy. Alas-as and Brgy. Pulangbato, San Nicolas, Batangas. Often, these felt earthquakes were accompanied by rumbling sounds. Precise leveling (PL) measurements on Taal Volcano Island from November 21 – 29, 2019 showed further inflation of the volcano edifice, consistent with the recent results from continuous GPS data. An increase in Carbon Dioxide (CO2) emission is also observed inside the Main Crater starting around April of 2019. However, there are no significant changes in the water temperature and acidity of the Main Crater Lake.

Alert Level 1 remains in effect over Taal Volcano. This means that hazardous eruption is not imminent. However, there is a possibility of magmatic disturbance ongoing under the volcano. In the event of further increase in number of volcanic earthquakes, higher concentration of gases, continuous inflation of the volcano’s edifice, increase in water temperature and/or occurrence of widespread bubbling at the lake of the Main Crater, Taal Volcano’s status will be raised to Alert Level 2. 

DOST-PHIVOLCS strongly recommends vigilance and readiness of communities in the Volcano Island especially with the projected track of Typhoon Tisoy in CALABARZON based on the Severe Weather Bulletin #3 issued by PAGASA at 5AM on December 1, 2019. DOST-PHIVOLCS also reminds the public that the Main Crater is strictly off-limits because sudden steam explosions may happen and high concentrations of toxic gases may accumulate. The northern portion of the Main Crater rim, near the Daang Kastila Trail, may also become hazardous when steam emission along existing fissures abruptly increases. DOST-PHIVOLCS strongly emphasizes that the entire Volcano Island is a Permanent Danger Zone (PDZ) and is not recommended for permanent settlement at all times.

DOST-PHIVOLCS is closely monitoring Taal Volcano’s condition and any new development will be relayed to all concerned.

 

DOST-PHIVOLCS

00 volcano icon for bulletin  Based on its Tropical Cyclone Advisory # 5 issued at 11:00 AM today (November 30, 2019), the Philippine Atmospheric Geophysical and Astronomical Services Administration (PAGASA) forecasts that the Bicol Region will be experiencing moderate to heavy rains and thunderstorms starting Monday (December 2, 2019) due to Typhoon “KAMMURI”.

In view of the above, DOST-PHIVOLCS strongly recommends vigilance and readiness of communities in pre-determined zones of lahar hazards in Mayon Volcano. Prolonged and heavy rainfall may generate post-eruption lahars on major channels draining the Mayon Volcano edifice from thick pyroclastic density current (PDC) material and ashfall deposited during the January-March 2018 Mayon eruption. The bulk of erodible PDC deposits occupy the watershed areas of the Miisi, Mabinit, Buyuan and Basud channels. These deposits can be remobilized by rainwater and incorporate existing erodible material on channel banks and channel beds to generate boulder-rich or sediment-rich lahars.

DOST-PHIVOLCS therefore warns of potential lahars and sediment-laden streamflows on all river channels draining the slopes of Mayon Volcano, particularly the Miisi, Mabinit, Matan-ag, Basud, Masarawag-Maninila and Quirangay Channels, that may be generated by heavy rainfall brought about by Typhoon “KAMMURI”. Communities and local government units beside these drainages are advised to be additionally vigilant and to move residents to high ground when heavy rains occur. Alert Level 2 remains in effect over Mayon Volcano. DOST-PHIVOLCS maintains its close monitoring and will communicate any new development to all concerned stakeholders.

DOST-PHIVOLCS

May mga obserbasyon na nakarating sa tanggapan ng DOST-PHIVOLCS na may nakitang usok na nagmumula sa Bulkang Pinatubo o kaya sa kalapit na mga lugar. Mayroon din daw na mga lugar na nagdilim at halos wala nang makita o maaninag dahil sa parang pag-ulan ng abo. 

Ang mga obserbasyong ito ay ibinalita sa amin pagkatapos ng M6.1 na lindol nitong Abril 22, 2019. Dahil dito, nag-aalala ang mga nakakita at nag-iisip kung mayroon bang kinalaman ang malakas na lindol sa kalagayan ng Bulkang Pinatubo.

Ang DOST-PHIVOLCS ay masusing sinusubaybayan ang Bulkang Pinatubo. Sa ngayon, ayon  sa aming Pinatubo Volcano Seismic Monitoring Network, walang naoobserbahang pagbabago sa bulkan na nagbabadya ang pag-aalburoto nito.

Ang aming mga kasamahan na inabutan ng lindol habang nagsasagawa ng fieldwork sa crater ng Bulkang Pinatubo ay walang nakitang pagbuga ng usok bago pa man ang lindol, habang lumilindol, o pagkatapos ng lindol. Ang mga naobserbahang usok at abo ay mga alikabok mula sa mga gumuhong lupa at bato. Ito ay resulta ng malakas na pagyanig na dulot ng M6.1 na lindol at mga sumunod na aftershocks. Ito ay pinatotohanan ng aming PHIVOLCS Quick Response Team na nagpunta sa Sitio Pasbul, Brgy Camias, Porac, Pampanga araw ng April 24, 2019.

Makakaasa kayo na ang DOST-PHIVOLCS ay patuloy na masinsinang sinusubaybayan ang Bulkang Pinatubo at anumang bagong impormasyon ay ipagbibigay-alam agad namin sa mga kinauukulan. Para sa karagdagang impormasyon, ugaliing bisitahin ang PHIVOLCS website  (www.phivolcs.dost.gov.ph) at official Facebook page.

 

DOST-PHIVOLCS

00 volcano icon for bulletin  Based on its Tropical Cyclone Advisory # 5 issued at 11:00 AM today (November 30, 2019), the Philippine Atmospheric Geophysical and Astronomical Services Administration (PAGASA) forecasts that the Bicol Region will be experiencing moderate to heavy rains and thunderstorms starting Monday (December 2, 2019) due to Typhoon “KAMMURI”.

In view of the above, DOST-PHIVOLCS strongly recommends vigilance and readiness of communities in pre-determined zones of lahar hazards in Bulusan Volcano. Prolonged and heavy rainfall may cause excessive erosion of existing pyroclastic deposits in the upper slopes of Bulusan Volcano, which can trigger lahars in rivers draining the southeastern, southwestern and northwestern flanks. Potential lahars can threaten downstream communities along the Malunoy (Patag), Mapaso, Cadac-an, Tinampo and Cogon Rivers in Irosin and the Añog-Rangas River in Juban. Alert Level 1 remains in effect over Bulusan Volcano. DOST-PHIVOLCS also reiterates that entry into the four kilometer-radius Permanent Danger Zone should be avoided due to the possibility of sudden and hazardous steam-driven or phreatic eruption, rockfall, landslide, and lahars. DOST-PHIVOLCS is closely monitoring Bulusan Volcano’s condition and any new development will be relayed to all concerned.

DOST-PHIVOLCS

On its 24-Hour Regional Weather Forecast issued at 5:00 AM today (January 21, 2019), the Philippine Atmospheric Geophysical and Astronomical Services Administration (PAGASA) forecasted that the Bicol Region will be experiencing cloudy skies with scattered rainshowers and thunderstorms caused by Tropical Depression Amang. Specifically, Sorsogon province might be impacted by possible flash flooding and landslides due to scattered moderate to heavy rains.

In view of the above, PHIVOLCS strongly recommends vigilance and readiness of communities in pre-determined zones of lahar hazards in Bulusan Volcano. Prolonged and heavy rainfall may cause excessive erosion of existing pyroclastic deposits in the upper slopes of Bulusan Volcano, which can trigger lahars in rivers draining the southeastern, southwestern and northwestern flanks. Potential lahars can threaten downstream communities along the Malunoy (Patag), Mapaso, Cadac-an, Tinampo and Cogon Rivers in Irosin and the Añog-Rangas River in Juban. PHIVOLCS reiterates that entry into the four kilometer-radius  Permanent Danger Zone should be avoided due to the possibility of sudden and hazardous steam-driven or phreatic eruption, rockfall, landslide, and lahars. PHIVOLCS is closely monitoring Bulusan Volcano’s condition and any new development will be relayed to all concerned.

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TAAL VOLCANO BULLETIN: 10 December 2019 8:00 A.M

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Mayon Volcano’s seismic monitoring network recorded one (1) volcanic earthquake and three (3) rockfall events during the 24-hour observation period. Moderate emission of white steam-laden plumes that drifted southwest was observed. Sulfur dioxide (SO2) emission…
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