Alert 4 remains up as Mayon grumbles, ‘vibrations like in blowing trumpet', rolling boulders | BICOL TODAY

Alert 4 remains up as Mayon grumbles, ‘vibrations like in blowing trumpet’, rolling boulders


By Elmer James Bandol

LEGAZPI CITY, 26Jan2018 — Until early before dawn today, Mayon Volcano showed intense but sporadic lava fountaining from the crater with duration from 26 to 57minutes in seven episodes since yesterday.

MAYON BULLETIN as of 8:00 AM released by Phivolcs, said that lava fountains reached 150 to 500 meters in height and caused ash plumes reaching 500 meters to 3 kilometers above the summit.

These events added lava flows along Miisi & Bonga Gullies, sprayed lava spatter near the vent that triggered flaming rocks on the summit area.

A total of 15 volcanic earthquakes, 19 tremor events wherein seven of which caused by lava fountaining while pyroclastic flow occurred after lava collapse. Rockfall incidents happened due to collapsing lava front and margins of the flowing new lava advancing on the Miisi & Bonga Gullies.

According to volcanologist Paul Alanis, rumbling sounds are generated by these events: like jeep-sized rocks falling from crater and vibrations likened to a blowing trumpet.

The swelling of the volcano’s ‘edifice is consistently pressurized by magma intrusion. Alert level 4 remains in effect. Phivolcs said. []

Posted by on January 26, 2018. Filed under Bicol News,Headlines. You can follow any responses to this entry through the RSS 2.0. You can leave a response or trackback to this entry

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