fachai Taal Volcano posts phreatic eruption again, says Phivolcs

FILE PHOTO: Taal Volcano as seen from Laurel town in Batangas province. – The volcano registered a phreatic eruption before noon Friday, January 10, 2025, the Philippine Institute of Volcanology and Seismology (Phivolcs) reports on Saturday, January 11.  INQUIRER FILES

MANILA, Philippines — Taal Volcano registered a phreatic eruption before noon Friday, the Philippine Institute of Volcanology and Seismology (Phivolcs) reported.

Marcos made the pronouncement during the Philippine Strategic Trade Management (STM) Summit 2024 in Taguig City, the first time the country hosted the forum.

Phivolcs told INQUIRER.net that the minor explosion, which lasted for three minutes, was recorded from 11:51 a.m. to 11:54 a.m. on January 10.

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The state volcanologist, however, said it did not monitor any vog from the volcano’s crater.

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A phreatic eruption is a “steam-driven explosion that occurs when water, beneath the ground or on the surface, is heated by magma, lava, hot rocks, or new volcanic deposits (for example, tephra, and pyroclastic-flow deposits),” according to Phivolcs in a Facebook post.

READ: Increased seismic activity recorded at Taal Volcano

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In a bulletin on Saturday, Phivolcs said Taal Volcano, which is located in Batangas province, released 5,868 tons of sulfur dioxide on Wednesday, January 8.

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It also said that the January 10 phreatic eruption released a 900-meter-high plume that drifted southwest.

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READ: Taal Volcano emits 4,400 tons of sulfur dioxide after minor eruption

Long-term deflation of the volcano’s caldera and short-term inflation of the general northern and southeastern parts of the volcano island were also observed on Friday, Phivolcs noted.

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Alert Level 1 is still raised over the volcano and Phivolcs repeated its warning that entering Taal Volcano Island and flying any aircraft close to the volcano premises is prohibited.

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Phivolcs likewise reiterated that stream-driven or phreatic explosions, volcanic earthquakes, minor ashfall, and explosions of volcanic gas are still imminent.

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