Danger level remains high near Mt. Mayon despite ease in volcanic activity — PHIVOLCS

admin   •   February 8, 2018   •   3870


Legazpi, ALBAY — One should not be deceived by the seemingly calm state of Mayon Volcano.

This has been the warning of the Philippine Institute of Volcanology and Seismology (PHIVOLCS).

According to Undersecretary Renato Solidum, despite showing fewer signs of abnormality, the volcano remains dangerous.

Solidum explained that the public should not make as the basis what their eyes see, but the data coming from the equipment of the agency.

“Base sa instrumento, maliban doon sa nakikita ay mas vigorous ang eruptive activity ng bulkan sa ngayon,” said the Phivolcs director.

(Based on the instrument, aside from what we see, the eruptive activity of Mt. Mayon is more vigorous now.)

The PHIVOLCS said that it is considering two scenarios. First is the continuous spewing of lava-like what happened in the previous weeks. Second is the blockage of solidified lava on the crater of the volcano that may create extreme pressure. The agency noted that the second scenario is the possibility of a strong eruption.

In the recent days, Mt. Mayon continued to spew lava fountain.

In fact, PHIVOLCS recorded 153 episodes of lava fountaining this week alone.

Since January 13th, the volcano released 70 cubic meters of lava.

This is higher compared to its previous eruptions in 1960 to 2014.

“So itong nangyayari ngayon sa Mayon ay mas maigi na kaysa mabilis ang ilabas lahat, mas mapaminsala ito at in the long term kapag hindi lava ang inilabas kundi basag-basag o fermented volcanic material ang potential impact ng lahar ay lumalaki,” said Solidum.

(So what’s happening now with Mayon is better, rather than having it spew everything quickly. It would be more destructive. And in the long term, when it no longer releases just lava but fermented volcanic material as well, the potential impact of lahar is getting bigger.)

Next week will mark the first month since Mt. Mayon spewed out lava fountains.

Alert level four remains over the extended 8-kilometer danger zone around the volcano. — Mon Jocson | UNTV News & Rescue

Magnitude 5.1 quake rattles Occidental Mindoro

Robie de Guzman   •   December 21, 2021

A magnitude 5.1 quake jolted parts of Occidental Mindoro and nearby areas on Tuesday, the Philippine Institute of Seismology and Volcanology (PHIVOLCS) said.

In a bulletin, PHIVOLCS said the epicenter of the quake was located 15 kilometers northeast of Sablayan, Occidental Mindoro. It occurred at 12:08 p.m.

The temblor was a tectonic in origin and had a depth of 15 kilometers.

PHIVOLCS said the quake was felt at the following areas:

• Intensity IV – Sablayan and Rizal, Occidental Mindoro
• Intensity III – Abra De Ilog, Santa Cruz and Calintaan, Occidental Mindoro; Calapan City and Bansud, Oriental Mindoro
• Intensity II – Makati City; Batangas City; Baco, Oriental Mindoro
• Intensity I – Puerto Galera, Oriental Mindoro; Tingloy, Batangas;

“This is an aftershock of the October 03, 2021 M5.3 Sablayan, Occidental Mindoro Earthquake event,” the agency noted in its report.

Damage and aftershocks are to be expected following the quake, PHIVOLCS said.

Magnitude 5.5 quake hits Paluan, Occidental Mindoro — Phivolcs

Maris Federez   •   December 13, 2021

MANILA, Philippines — A magnitude 5.5 earthquake hit the town of Paluan in Occidental Mindoro at 5:12 in the afternoon on Monday (December 13).

The Philippine Institute of Volcanology and Seismology (Phivolcs) said the tremor was tectonic in origin with a depth of 104 kilometers.

Reported intensities were as follows:

Intensity IV- Calatagan, Batangas; Puerto Galera, Oriental Mindoro;

Intensity III – Batangas City, Lemery, Malvar and Bauan, Batangas; Tagaytay City and Amadeo, Cavite; Quezon City; City of Manila and Pasay City

Intensity II- Taguig City; Mandaluyong City; Makati City; Caloocan City; Malabon City; Tanay, Rizal; San Felipe, Zambales

Instrumental Intensities, on the other hand, reported the following:

Intensity IV – Calatagan, Batangas; Calapan City, Oriental Mindoro

Intensity III – Tagaytay City, Cavite; Plaridel, Bulacan; Batangas City; San Jose, Occidental Mindoro

Intensity II – San Ildefonso, Calumpit, and San Rafael, Bulacan; Carmona, Cavite; Muntinlupa City; Olongapo City; Malolos City, Bulacan; Dolores, Quezon; Talisay, Batangas

Intensity I – Pasig City; Quezon City; Las Piñas City; Malabon City; Marikina City; Guagua, Pampanga; Cabanatuan City, Nueva Ecija; Mulanay and Mauban, Quezon; Pandi and Marilao, Bulacan

Phivolcs said that there was no notable damage from the quake but aftershocks are likely to take place.

PHIVOLCS: Magnitude 5.3. quake jolts Batangas, others areas

Robie de Guzman   •   December 13, 2021

MANILA, Philippines — An earthquake with a magnitude of 5.3 hit parts of Batangas and other nearby areas, the Philippine Institute of Volcanology and Seismology (PHIVOLCS) said Monday.

In its earthquake bulletin, the PHIVOLCS said the quake was recorded approximately 24 kilometers southwest of Calatagan Batangas around 5:12 p.m.

The temblor had a depth of 99 kilometers and was tectonic in origin.

PHIVOLCS said Intensity 3 was felt in Quezon City while intensity 2 was felt in San Felipe in Zambales.

Instrumental Intensity 1 was felt in Quezon City, Tagaytay City, Batangas City, and Calatagan.

PHIVOLCS said no damage is expected from the quake but aftershocks are likely to occur.

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