Philippines' Most Active Volcano Back in Business?
Posted by JAC on 7/10/2009, 8:31 am
 Mayon Volcano in the Philippines with Legazpi City in the foreground Scientists say the Philippines' most active volcano is rumbling again while emitting steam and a strong glow at the summit crater that can be seen with the naked eye. State volcanologists say the frequency of volcanic earthquakes has increased on Mayon signifying the possible movement of magma below the surface that could lead to ash explosions and eventually eruption. Mayon, one of the most active volcanoes in the Philippines, is causing concern due to increasing signs of activity. Renato Solidum, the director of PHIVOLCS (Philippine Institute of Volcanology and Seismology), said that there has been increasing seismic activity and "glow" at the summit of the volcano near (~20 miles / 45 km) Legazpi City. However, even after this sense of increasing activity, the alert level (1) has not changed, but local residents were altered to the new activity. This means that there is low-level unrest with slight increase in seismicity. The last notable eruption in 2006 at Mayon (oddly called a "silent eruption" in the linked article) produced a lava flow. There were also minor phreatic explosions in 2008. Posted by Erik Klemetti at 8:16 PM  In this timed exposure file photo made on July 17, 2006, lava cascades down the slopes of the 8,077-foot (2,462-meter) Mayon volcano in the central Bicol region in the Philippines. On Friday July 10, 2009, Philippine scientists say the cone-shaped Mayon volcano, the country's most active, is rumbling again, emitting steam and a strong glow at the summit crater that can be seen with the naked eye and raised the five-step alert system from 1 to 2. State volcanologists say the frequency of volcanic earthquakes has increased, signifying the possible movement of magma below the surface, which could lead to ash explosions and eventually eruption. |
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