Mayon volcano: eruption news and updates
Monday, Jul 01, 2013
PHILVOLCS maintains alert level 1 for the volcano. No significant seismic activity is taking place, and no crater glow has been observed recently. Degassing is at normal levels, but ground deformation measurements show that the edifice is still slightly inflated compared to January 2010 baselines. ...more
Monday, Jun 03, 2013
The alert level for the volcano has been raised by PHILVOLCS. A weak incandescence is sometimes observed at the summit, and slight inflation has been detected, suggesting that magma has started to intrude into the volcanic edifice. ...more [read all]
Tuesday, May 07, 2013
A sudden (probably phreatic) powerful eruption from the summit crater occurred this morning and killed at least 5 people in camp #2 and wounded 15 others. ...more [read all]
Sunday, Nov 11, 2012
Signs of unrest have been detected at Mayon volcano that could be first signs of new activity in the not too distant future (months ?). ...more [read all]
Tuesday, Jul 31, 2012
Mayon as most of the other volcanoes in the Philippines is currently quiet as the eruptions blog writes. ...more
Sunday, Jan 30, 2011
Weak activity is present at Mayon volcano's summit crater, where a red glow can be seen at night. Philvolcs reports that during 18-25 January 2011, up to two daily volcanic earthquakes were detected by the seismic network.
Wednesday, Dec 16, 2009
Mayon volcano started to erupt again on Dec 14. The lava dome in the summit of the steep stratovolcano began to grow again and is producing strombolian and vulcanian explosions as well as incandescent rock avalanches and small pyroclastic flows travelling down up to 3 km the SE side of the volcano. ...more
Wednesday, Nov 11, 2009
At 1:58 AM on 11 Nov, an ash explosion occurred at the summit crater of Mayon Volcano. The event was not well observed as the summit was in clouds, but recorded on seismographs and iincandescent rock fragments were seen at the upper slope of the steep stratovolcano. Ashfall drifted towards the Southwest quadrant of the volcano due to the prevailing Northeast monsoon.
Thursday, Aug 13, 2009
Even the number of earthquakes from Mayon have decreased, the volume of sulfur dioxide emissions has increased sharply. May be a sign of a comming eruption?Authorities declared four villages off-limits to people.
Saturday, Dec 02, 2006
We regret to post a very sad volcano-related news entry. Heavy rainfall from the exceptionally strong typhoon Durian that hit the Philippines a few days ago triggered a series of huge mud flows and landslides on the slopes of Mayon volcano (which itself has been quiet for over a month now, but accumulated lots of fresh deposits in its last eruptive phase in the summer 2006).
Sunday, Oct 15, 2006
PHIVOLCS reported on 1 October that fumarolic activity from Mayon produced steam plumes that drifted ENE. Intense incandescence was observed at the summit. Observations were not possible 2-3 October due to cloud cover. According to news articles, the Alert Level was lowered to 2 on 3 October.
Thursday, Sep 28, 2006
Volcanic activity at Mayon consisted of incandescent lava fragments rolling down the slopes and glow coming from the summit crater. Moderate white steam emissions continued from the summit. The number of daily volcanic earthquakes was low during 20-24 September, with 1-3 events per day.
Thursday, Sep 14, 2006
Seismic activity and lava extrusion from Mayon decreased during 6-12 September. Ground-deformation measurements showed an overall deflation. On 11 September, the Alert Level was lowered from 4 to 3 and around 30,000 people who had been evacuated early in August were allowed to return to their homes.
Thursday, Sep 07, 2006
Thick blocky lava lava continues to flow from Mayon volcano. The main active flow on the SE slope reaches about 800 m elevation where the flow front begins to disintegrate into loose blocks that roll into the Buyoan ravine.
Saturday, Aug 26, 2006
PHIVOLCS reported that explosions from Mayon continued during 16-19 August.
Thursday, Aug 17, 2006
During 9-15 August, explosive activity continued at Mayon after a brief respite on 8 August. Based on interpretations of seismic data, minor explosions during 9-11 and 13-15 August were accompanied by lava extrusion and collapsing lava flow fronts that produced blocks and small fragments. Visual observations were usually obscured by clouds, but on 11 August an ash plume was seen drifting ESE. On 12 August, out of four explosions that occurred, one produced a pyroclastic flow that traveled over the SE and E slopes and generated a plume that rose 500 m high and drifted NE. On 15 August, a brief break in the clouds allowed for a view and confirmation of fresh pyroclastic deposits from activity the previous days.
Thursday, Aug 10, 2006
PHIVOLCS reported that during 2-8 August, lava from Mayon continued to flow mainly SSE along the Mabinit channel and subsequently over a broad sector of the upper and middle SE slopes.
Wednesday, Aug 09, 2006
Lava flows from Mayon in the SE sector of the Bonga gully advanced ~1.35 km during 26 July-1 August to reach a maximum distance of 5.8 km SSE from the summit on 1 August. Smaller lava flows and incandescent blocks descended adjacent gullies. On July 29, light ash accumulation was reported about 12 km S and SE, in Daraga municipality and Legazpi City and vicinity, respectively. Emissions of sulfur-dioxide reached ~12,500 tons per day on 31 July, a record high for the current period of unrest.
Saturday, Jul 29, 2006
Lava flows from Mayon traveled SSE a maximum distance of 4 km from the summit toward the Bonga gully and branched off to the W and E. Incandescent blocks shed from the toe and margins of the flows were visible at night and traveled SE. Ash plumes generated from the rolling blocks produced light ash fall 8.5 km E of the summit in Sta. Misericordia. On 20 July, pyroclastic flows were observed on the SE slopes prompting ~100 families to evacuate. On 22 July, lava flows advanced NE towards the Mabinit channel. The lava flows were within the 6 km radius Permanent Danger Zone....more
Monday, Jul 17, 2006
The number and size of incansecent rock falls from the active lava dome as well as SO2 emission at Mayon volcano are increasing according to the observatory, that maintains that pyroclastic flows or an explosive eruption can occur any time now. The volcano is at alert level 3 with a non-enforced exclusion zone of 6 km around the summit.
Saturday, Jul 15, 2006
Mayon, the Philippines's most active and a notoriously destructive volcano, started erupting last Thursday (13 July, 2006). After a swarm of earthquakes, small ash emissions were observed and on Friday, small lava flows (i.e. glowing rock falls from the lava dome) started to be visible....more
Saturday, Feb 25, 2006
Although new eruptions could not be observed due to bad weather, some explosion-type earthquakes were erecorded at Mayon over the past days. It is therefore likely that minor phreatic explosions do continue at Mayon, which is also apparent from confirmed reports that rumblings were heard by local residents in Sta Misericordia. Alert level remains at "2", meaning that the public is strongly advised to remain out of the declared danger zone of 6 km around the volcano....more
Tuesday, Feb 21, 2006