Mayon volcano: eruption news and updates
Mayon volcano (Philippines): volcanic unrest, alert level raised
Thursday Sep 08, 2016 17:23 PM | BY: T
There are signs that the volcano could be heading towards a new eruption in the medium term future (weeks to months). PHILVOLCS issued a warning and raised the alert level from Level 0 (normal) to Alert Level 1 (abnormal).
Recently, several of the monitored parameters of the volcano's internal state have changed significantly: since July, SO2 emissions have increased from 500 tonnes/day to over 1,000 tonnes/day on some days, suggesting magma has been rising from deeper reservoirs to shallow levels.
Ground deformation measurements by GPS and tilt meters have also shown an inflation of the edifice, possibly due to magma movements at depth.
Seismic activity has increased as well a bit. A total of 146 earthquakes were recorded between 3-6 August, mostly located on the southeast side 10 km away from the volcano.
Other observations include that 4 of the 14 monitored water wells located on the southeastern side of Mayon showed a decrease in water discharge while one well has dried-up. Steaming activity from the crater has ranged from weak to moderate. No crater glow has been observed so far.
Thursday, Dec 18, 2014
During 9-16 December, white plumes were occasionally observed rising from Mayon's crater and drifted WNW and WSW, sometimes downslope. ... [more]
Friday, Dec 05, 2014
PHIVOLCS warns against possible lahars (mud flows) that will likely occur in river beds draining from Mayon and Bulusan volcanoes during the expected heavy rains from typhoon Ruby. ... [more]
Friday, Nov 14, 2014
During 5-11 November white plumes rose from Mayon's crater and drifted S, SW, WSW, WNW, and NW, sometimes downslope. Weak incandescence from the crater was noted some nights. ... [more]
Friday, Nov 07, 2014
PHIVOLCS reported that during 28 October-4 November white plumes rose from Mayon's crater and drifted SW, WSW, WNW, and NW, sometimes down the flanks. Weak incandescence from the crater was noted at night on 28 October. ... [more]
Saturday, Nov 01, 2014
PHIVOLCS reported that during 22-28 October white plumes rose from Mayon's crater and drifted SW, WSW, WNW, and NW. A few volcanic earthquakes and rockfall signals were recorded during 23-25 and 28 October. ... [more]