Taal Volcano records high-level of sulfur dioxide

Aileen Cerrudo   •   October 6, 2021   •   210

MANILA, Philippines—Taal Volcano has emitted a record-high level of sulfur dioxide (SO2) on Tuesday (October 5), according to the Philippine Institute of Volcanology and Seismology (Phivolcs).

Based on the latest bulletin of Phivolcs, the volcano spewed out 25,456 tons of SO2 dominated by upwelling of hot volcanic fluids in its lake. The volcanic activity also generated plumes 1,500 meters tall that drifted northwest and northeast.

Alert Level 2 remains over Taal Volcano. Phivolcs reminds the public that at Alert Level 2, sudden steam- or gas-driven explosions, volcanic earthquakes, minor ashfall, and lethal accumulations or expulsions of volcanic gas can occur and threaten areas within and around the Taal Volcano Island (TVI).

Phivolcs has recommended that entry into Taal Volcano Island, Taal’s Permanent Danger Zone or PDZ must be strictly prohibited, especially the vicinities of the Main Crater and the Daang Kastila fissure, and occupancy and boating on Taal Lake. AAC

 

Phivolcs reports weak explosion in Mt. Pinatubo

Maris Federez   •   December 1, 2021

MANILA, Philippines — A weak explosion was recorded at Mount Pinatubo on Tuesday afternoon, the Philippine Institute of Volcanology and Seismology (Phivolcs) reported.

The Pinatubo Volcano Network recorded seismic and infrasound signals of a weak explosion at Mt. Pinatubo between 12:09 and 12:13PM, an advisory from Phivolcs said.

The agency confirmed that the event produced a plume that was detected by Japan’s Himawari-8 Satellite.

“The seismic and infrasound signals are not typical of known volcanic processes and are currently being evaluated together with other potential sources,” Phivolcs said.

The advisory further read that there has been very low seismic activity in the past days.

It added that the geochemical survey at Mt. Pinatubo Crater Lake yielded low diffused volcanic CO2, discounting magmatic activity beneath the edifice.

Phivolcs cautioned the public to refrain from going in the vicinity of Mount Pinatubo.

The agency also advised local government units (LGUs) to ban entry into the Pinatubo Crater until the source of the explosion is determined.

“Communities and LGUs surrounding Pinatubo are reminded to be always prepared for both earthquake and volcanic hazards and to review, prepare and strengthen their contingency, emergency, and other disaster preparedness plans,” Phivolcs said.

Magnitude 5.2 earthquake hits Calatagan, Batangas

Aileen Cerrudo   •   October 8, 2021

A 5.2 magnitude earthquake hit Calatagan, Batangas at 2:14 a.m. on Friday (October 8), according to the Philippine Institute of Volcanology and Seismology (Phivolcs).

The quake has a depth of 131 kilometers and Intensity II was felt by residents in Calatagan.

Phivolcs said the earthquake was an aftershock of the magnitude 6.6 quake that occurred in the same area on July 24, 2021.

No damage was reported and no further aftershocks are expected. AAC

 

Magnitude 5.7 quake strikes Looc, Occidental Mindoro

Maris Federez   •   September 27, 2021

 

A magnitude 5.7 earthquake hit the town of Looc, Occidental Mindoro on Monday at 1:12 in the morning.

The Philippine Institute of Volcanology and Seismology (Phivolcs) said the quake was tectonic in origin, which means there was a movement in the Earth’s crust, and that it had a depth of 74 kilometers.

The tremor recorded Intensity V in Tagaytay City and Amadeo in Cavite.

Intensity IV was felt in Malolos City and Obando in Bulacan; San Mateo, Rizal; General Trias and Tanza in Cavite; City of Manila, Marikina City, San Juan City, and Las Pinas City in Metro Manila.

Intensity III was recorded in City of Antipolo in Rizal; Quezon City, Pasig City, Makati City, and Valenzuela City.

Intensity II, on the other hand, was felt in Palayan City, Nueva Ecija.

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