The Metropolitan Manila Development Authority, meanwhile, said these are the areas affected by ashfall: Cavite, Batangas, Rizal, northwestern part of Quezon, Metro Manila, Bulacan, Pampanga, Bataan, Tarlac, Nueva Ecija, eastern part of Pangasinan, southeastern part of Zambales.
As of 5:30 pm, eruptive activity at Taal Volcano main crater intensified as continuous eruption generated a tall 10-15 kilometer steam-laden tephra column with frequent volcanic lightning that rained wet ashfall on the general north as far as Quezon City," Phivolcs said.
"Volcanic tremor has been recorded continuously since 11 am and two volcanic earthquakes of magnitudes 2.5 and 3.9 were felt at Intensity III in Tagaytay City and Alitagtag, Batangas.recorded at 6:15 and 6:22 pm, respectively," added the agency.
Phivolcs first raised Alert Level 2, which means increasing unrest, at 2:30 pm on Sunday.
This was due to a phreatic explosion, or a steam-driven episode that occurs when water beneath the ground or on the surface is heated by magma, lava, hot rocks, or new volcanic deposits.
This was followed by Alert Level 3 at 4 pm, which means magmatic unrest. The ash column then had reached one kilometer high.
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