Sunday, 29 June 2014

Activity on Mount Mayon, Philippines.

The Philippine Institute of Volcanology and Seismology has recorded an increase in seismic activity over the past 24 hours (Saturday 28-Sunday 29 June 2014) beneath Mount Mayon, a 2463 m stratovolcano (cone shaped volcano) on southern Luzon Island. White smoke has also been seen issuing from the summit of the volcano, though the alert level has not yet been raised.

White smoke issuing from the summit of Mount Mayon at about 11.00  am on 29 June 2014. GMA News.

Mayon is considered to be a particularly due to the dense population in the area surrounding it. It has a long history of causing fatalities, most recently in 7 May 2013, when a sudden eruption caught a party of tourists by surprise, leading to five fatalities. As well as the direct danger from volcanic eruptions, Mayon has been the cause of numerous lahars (ash-laden flash foods). These tend to occur when ash from the volcano builds up across the path of seasonal waterways during the dry season, leading to temporary damming of water courses then flash floods at the start of the rainy season.

The location of Mount Mayon. Google Maps.

The geology of the Philippines is complex, with the majority of the islands located on the east of the Sunda Plate. To the east of this lies the Philippine Sea plate, which is being subducted beneath the Sunda Plate; further east, in the Mariana Islands, the Pacific Plate is being subducted beneath the Philippine Sea Plate. 

See also...


The United States Geological Survey recorded a Magnitude 7.1...



Five people are reported to have been killed in an eruption on Mount Mayon, an active stratovolcano (cone shaped volcano) on Luzon Island in the Philippines. The five, who have been described as four German tourists and a local guide, were part of a group of 20 people who were approaching the summit  of the volcano, when they were caught by a...



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