12,000 flee as lava oozes from Mayon volcano

LEGAZPI, The Philippines - Thousands fled from their homes as lava oozed out of a rumbling Philippine volcano on Monday in what volcanologists described as a "quiet eruption", warning it could lead to a hazardous explosion within days.

Lava was slowly flowing out of the Mayon volcano's crater along with a spectacular 1,000-meter ash plume rising into the sky, the nation's volcanology institute said.

More than 12,000 people have been ordered to leave a 7-kilometer danger zone around the crater, as officials warned them of potentially destructive mudflows and toxic clouds.

"Technically, the volcano is erupting but the eruption is fairly quiet. It may escalate into a hazardous eruption," said Paul Alanis, science research specialist at the Philippine Institute of Volcanology and Seismology, or Phivolcs.

A hazardous or explosive eruption means a lava fountain or a spray of hot rocks and gases that could move as fast as 60 kilometers per hour, Alanis added.

Local disaster officials also warned of volcanic mudflows known as lahars.

"Because of continuous rains in past weeks, debris deposited (on) the slopes of Mayon could lead to lahar flows. If rain does not stop it could be hazardous," said Claudio Yucot, head of the region's office of civil defense.

Mayon, a near-perfect cone that draws thousands of tourists, even during minor eruptions, rises 2,460 meters above a largely agricultural region some 330 km southwest of Manila.

It is the considered the nation's most active volcano.

Steam-driven eruptions and rockfalls began over the weekend, and the crater began glowing on Sunday evening, in what Phivolcs said was a sign of the growth of a new lava dome.

Lava last flowed out of Mayon in 2014 when 63,000 people fled from their homes.

"We think the lava now is more fluid than in 2014. This means the flow can reach further down (the slopes) at a faster rate," said Renato Solidum, head of Phivolcs.

"We see similarity with eruptions where the first phase of the activity started with lava flow and culminated in an explosive or hazardous part. That's what we are trying to monitor and help people avoid."

The Philippines is part of a "Ring of Fire" of islands in the Pacific that were formed by volcanic activity, and has to contend with 22 active volcanoes.

Mayon has a long history of deadly eruptions.

Four foreign tourists and their local tour guide were killed when Mayon last erupted, in May 2013.

In 1814, more than 1,200 people were killed when lava flows buried the town of Cagsawa.

In Monday's lava flow, Phivolcs advised residents to use a damp cloth over their mouths and stay indoors to avoid inhaling sulfur dioxide gas.

"If you breathe, you will feel like coughing and clearing your throat. It also stings and is painful in the eyes," Bert Recamunda, a 55-year-old engineer and Mayon watcher, told AFP after visiting Camalig town near the volcano.

Ap - Afp

(China Daily 01/16/2018 page11)