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Dost-Phivolcs Alert Level 3

The document discusses a recent eruption of Taal Volcano in the Philippines in July 2021 which caused the alert level to be raised. Taal Volcano is located near Manila and is one of the most active volcanoes in the country, with over 30 recorded eruptions. The last major eruption in January 2020 affected over 736,000 people.

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35 views1 page

Dost-Phivolcs Alert Level 3

The document discusses a recent eruption of Taal Volcano in the Philippines in July 2021 which caused the alert level to be raised. Taal Volcano is located near Manila and is one of the most active volcanoes in the country, with over 30 recorded eruptions. The last major eruption in January 2020 affected over 736,000 people.

Uploaded by

ela kikay
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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After a year from the previous eruption of Taal Volcano, its main crater generated a short-lived

phreatomagmatic plume one kilometre high with no accompanying volcanic earthquake on 1 July 2021.
The Department of Science and Technology’s Philippine Institute of Volcanology and Seismology (DOST-
PHIVOLCS) consequently, raised the Alert Level from 2 to 3 (out of 5). An Alert Level 3 refers to magma
extruding from the main crater, which could drive explosive eruption.

Taal Volcano is located about 50 kilometres south of the capital city Manila, in Batangas, CALABARZON
(Region IV-A) on a smaller Volcano Island, and is listed as a Permanent Danger Zone, with permanent
settlement on the island not recommended. However, approximately 53,697 people (10,131 families)
and CHF 129 millions of infrastructure are within 10 kilometre radius and 2.81 million people within 30
kilometre distance (AHA Centre). Taal Volcano is among the most active volcanoes in the Philippines,
with more than 30 reported eruptions. Last time Taal Volcano erupted in early January 2020 affecting
more than 736,000 people in CALABARZON (Region IV-A), Central Luzon (Region III) and National Capital
Region (NCR) and leading to an evacuation of more than 135,000 people, damage to infrastructure and
livelihoods, and disruption of essential services, such as water supply and education.

As the descending landmass sinks deep into the Earth, temperatures and pressures climb, releasing
water from the rocks. The water slightly reduces the melting point of the overlying rock, forming magma
that can work its way to the surface—the spark of life to reawaken a slumbering volcano.

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