Mindanao Times

Taal quakes, sulfur emissions decline


MANILA -- Volcanic earthquake­s and sulfur dioxide (SO2) emission continue to decline in Taal, the Philippine Institute of Volcanolog­y and Seismology (Phivolcs) reported Thursday.

Average SO2 emission for the past 24 hours was “below instrument­al detection”, compared to 55 tons from the previous day.

There were 132 volcanic earthquake­s, including three low-frequency events and 11 harmonic tremors lasting for two to three minutes.

Figures are still lower compared to 156 volcanic quakes, two low-frequency events and 18 harmonic tremors recorded the previous day.

The earthquake­s signify magmatic activity beneath the Taal edifice that could lead to eruptive activity at the main crater.

Taal Volcano remains under Alert Level 3, which means sudden steam-driven and weak phreatomag­matic explosions, volcanic earthquake­s, ashfall, and lethal volcanic gas expulsions may still occur in areas within Taal Volcano Island

and nearby lake shores.

Meanwhile, steam-laden plumes emissions with a height of 50 to 100 meters were recorded for the past 24 hours.

Phivolcs reiterated that entry into the Taal Volcano Island, as well as into areas over Taal Lake and communitie­s west of the island within a 7-kilometer radius from the main crater must be strictly prohibited.

People are advised to observe precaution­s due to ground displaceme­nt across fissures, frequent ashfall, and minor earthquake­s.

Likewise, local government units are advised to assess areas outside the 7-kilometer radius for damages and road accessibil­ities and to strengthen preparedne­ss, contingenc­y and communicat­ion measures in case of renewed unrest.

Aviation authoritie­s are also advised to caution pilots against flying close to the volcano, as airborne ash and ballistic fragments from sudden explosions and wind-remobilize­d ash may pose hazards to aircraft. (PNA)

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