WHAT YOU NEED TO KNOW
Albay province’s Mayon Volcano is showing an “increased tendency towards a hazardous eruption,” prompting the Philippine Institute of Volcanology and Seismology (Phivolcs) to raise Alert Level 3 on Thursday, June 8.
Chances are higher for “potential explosive activity within weeks or even days.”
Phivolcs warned of potential hazards such as pyroclastic density currents, lava flows, rockfalls, ashfall, and lahar. There is a 6-kilometer-radius permanent danger zone surrounding the volcano.
Bookmark this page for Phivolcs bulletins, information on government response, updates about evacuations, and other news about Mayon Volcano.
LATEST UPDATES
Phivolcs bulletin, August 29, 8 am
Phivolcs reported the following in its Mayon Volcano bulletin issued at 8 am on Tuesday, August 29, covering the past 24-hour period:
- slow effusion of lava from the summit crater continued to feed the established lava flows on the Bonga (southeastern), Mi-isi (south), and Basud (eastern) gullies, which have maintained respective lengths of 3.4 kilometers, 2.8 kilometers, and 1.1 kilometers from the crater
- 13 volcanic earthquakes
- 1 pyroclastic density current (PDC)
- 109 rockfall events
- debris from rockfall and PDCs still deposited within 4 kilometers of the crater
- sulfur dioxide emission averaged 1,298 tons per day on Saturday, August 26 (last measurement taken)
- pronounced inflation or swelling of southeastern middle slopes since the beginning of August 2023 (short term); volcano still generally inflated relative to baseline levels (longer term)
Mayon Volcano has been under Alert Level 3 since June 8, which means it is “in a relatively high level of unrest,” according to Phivolcs. A hazardous eruption remains possible within weeks or even days.
Phivolcs bulletin, August 28, 8 am
Phivolcs reported the following in its Mayon Volcano bulletin issued at 8 am on Monday, August 28, covering the past 24-hour period:
- slow effusion of lava from the summit crater continued to feed the established lava flows on the Bonga (southeastern), Mi-isi (south), and Basud (eastern) gullies, which have maintained respective lengths of 3.4 kilometers, 2.8 kilometers, and 1.1 kilometers from the crater
- 17 volcanic earthquakes
- 3 pyroclastic density currents (PDCs)
- 151 rockfall events
- debris from rockfall and PDCs still deposited within 4 kilometers of the crater
- sulfur dioxide emission averaged 1,298 tons per day on Saturday, August 26 (last measurement taken)
- inflated or swollen volcano edifice
Mayon Volcano has been under Alert Level 3 since June 8, which means it is “in a relatively high level of unrest,” according to Phivolcs. A hazardous eruption remains possible within weeks or even days.
Phivolcs bulletin, August 27, 8 am
Phivolcs reported the following in its Mayon Volcano bulletin issued at 8 am on Sunday, August 27, covering the past 24-hour period:
- slow effusion of lava from the summit crater continued to feed the established lava flows on the Bonga (southeastern), Mi-isi (south), and Basud (eastern) gullies, which have maintained respective lengths of 3.4 kilometers, 2.8 kilometers, and 1.1 kilometers from the crater
- 2 volcanic earthquakes, including 1 tremor lasting 1 minute
- 1 pyroclastic density current (PDC)
- 124 rockfall events
- debris from rockfall and PDCs still deposited within 4 kilometers of the crater
- sulfur dioxide emission averaged 1,298 tons per day on Saturday, August 26
- inflated or swollen volcano edifice
Mayon Volcano has been under Alert Level 3 since June 8, which means it is “in a relatively high level of unrest,” according to Phivolcs. A hazardous eruption remains possible within weeks or even days.
Phivolcs bulletin, August 26, 8 am
Phivolcs reported the following in its Mayon Volcano bulletin issued at 8 am on Saturday, August 26, covering the past 24-hour period:
- slow effusion of lava from the summit crater continued to feed the established lava flows on the Bonga (southeastern), Mi-isi (south), and Basud (eastern) gullies, which have maintained respective lengths of 3.4 kilometers, 2.8 kilometers, and 1.1 kilometers from the crater
- 21 volcanic earthquakes, including 10 tremors lasting 3 to 36 minutes
- 1 pyroclastic density current (PDC)
- 186 rockfall events
- debris from rockfall and PDCs still deposited within 4 kilometers of the crater
- sulfur dioxide emission averaged 1,084 tons per day on Friday, August 25
- inflated or swollen volcano edifice
Mayon Volcano has been under Alert Level 3 since June 8, which means it is “in a relatively high level of unrest,” according to Phivolcs. A hazardous eruption remains possible within weeks or even days.
Phivolcs bulletin, August 25, 8 am
Phivolcs reported the following in its Mayon Volcano bulletin issued at 8 am on Friday, August 25, covering the past 24-hour period:
- slow effusion of lava from the summit crater continued to feed the established lava flows on the Bonga (southeastern), Mi-isi (south), and Basud (eastern) gullies, which have maintained respective lengths of 3.4 kilometers, 2.8 kilometers, and 1.1 kilometers from the crater
- 15 volcanic earthquakes, including 14 tremors lasting 3 to 36 minutes
- 6 pyroclastic density currents (PDCs)
- 156 rockfall events
- debris from rockfall and PDCs still deposited within 4 kilometers of the crater
- sulfur dioxide emission averaged 735 tons per day on Wednesday, August 23 (last measurement taken)
- inflated or swollen volcano edifice
Mayon Volcano has been under Alert Level 3 since June 8, which means it is “in a relatively high level of unrest,” according to Phivolcs. A hazardous eruption remains possible within weeks or even days.
Phivolcs bulletin, August 24, 8 am
Phivolcs reported the following in its Mayon Volcano bulletin issued at 8 am on Thursday, August 24, covering the past 24-hour period:
- slow effusion of lava from the summit crater continued to feed the established lava flows on the Bonga (southeastern), Mi-isi (south), and Basud (eastern) gullies, which have maintained respective lengths of 3.4 kilometers, 2.8 kilometers, and 1.1 kilometers from the crater
- 42 volcanic earthquakes, including 29 tremors lasting 2 to 30 minutes
- 6 pyroclastic density currents (PDCs)
- 111 rockfall events
- debris from rockfall and PDCs still deposited within 4 kilometers of the crater
- sulfur dioxide emission averaged 735 tons per day on Wednesday, August 23
- inflated or swollen volcano edifice
Mayon Volcano has been under Alert Level 3 since June 8, which means it is “in a relatively high level of unrest,” according to Phivolcs. A hazardous eruption remains possible within weeks or even days.
Phivolcs bulletin, August 23, 8 am
Phivolcs reported the following in its Mayon Volcano bulletin issued at 8 am on Wednesday, August 23, covering the past 24-hour period:
- slow effusion of lava from the summit crater continued to feed the established lava flows on the Bonga (southeastern), Mi-isi (south), and Basud (eastern) gullies, which have maintained respective lengths of 3.4 kilometers, 2.8 kilometers, and 1.1 kilometers from the crater
- 56 volcanic earthquakes, including 39 tremors lasting 1 to 20 minutes
- 2 pyroclastic density currents (PDCs)
- 134 rockfall events
- debris from rockfall and PDCs still deposited within 4 kilometers of the crater
- sulfur dioxide emission averaged 772 tons per day on Tuesday, August 22
- inflated or swollen volcano edifice
Mayon Volcano has been under Alert Level 3 since June 8, which means it is “in a relatively high level of unrest,” according to Phivolcs. A hazardous eruption remains possible within weeks or even days.
Phivolcs bulletin, August 22, 8 am
Phivolcs reported the following in its Mayon Volcano bulletin issued at 8 am on Tuesday, August 22, covering the past 24-hour period:
- slow effusion of lava from the summit crater continued to feed the established lava flows on the Bonga (southeastern), Mi-isi (south), and Basud (eastern) gullies, which have maintained respective lengths of 3.4 kilometers, 2.8 kilometers, and 1.1 kilometers from the crater
- 50 volcanic earthquakes, including 36 tremors lasting 7 to 32 minutes
- 107 rockfall events
- debris from rockfall and pyroclastic density currents still deposited within 4 kilometers of the crater
- sulfur dioxide emission averaged 753 tons per day on Monday, August 21
- inflated or swollen volcano edifice
Mayon Volcano has been under Alert Level 3 since June 8, which means it is “in a relatively high level of unrest,” according to Phivolcs. A hazardous eruption remains possible within weeks or even days.
Phivolcs bulletin, August 21, 8 am
Phivolcs reported the following in its Mayon Volcano bulletin issued at 8 am on Monday, August 21, covering the past 24-hour period:
- slow effusion of lava from the summit crater continued to feed the established lava flows on the Bonga (southeastern), Mi-isi (south), and Basud (eastern) gullies, which have maintained respective lengths of 3.4 kilometers, 2.8 kilometers, and 1.1 kilometers from the crater
- 23 volcanic earthquakes, including 4 tremors lasting 1 to 2 minutes
- 154 rockfall events
- debris from rockfall and pyroclastic density currents still deposited within 4 kilometers of the crater
- sulfur dioxide emission averaged 821 tons per day on Sunday, August 20
- inflated or swollen volcano edifice
Mayon Volcano has been under Alert Level 3 since June 8, which means it is “in a relatively high level of unrest,” according to Phivolcs. A hazardous eruption remains possible within weeks or even days.
Phivolcs bulletin, August 20, 8 am
Phivolcs reported the following in its Mayon Volcano bulletin issued at 8 am on Sunday, August 20, covering the past 24-hour period:
- slow effusion of lava from the summit crater continued to feed the established lava flows on the Bonga (southeastern), Mi-isi (south), and Basud (eastern) gullies, which have maintained respective lengths of 3.4 kilometers, 2.8 kilometers, and 1.1 kilometers from the crater
- 35 volcanic earthquakes, including 20 tremors lasting 1 to 80 minutes
- 6 pyroclastic density currents (PDCs)
- 127 rockfall events
- debris from rockfall and PDCs still deposited within 4 kilometers of the crater
- sulfur dioxide emission averaged 1,467 tons per day on Saturday, August 19
- inflated or swollen volcano edifice
Mayon Volcano has been under Alert Level 3 since June 8, which means it is “in a relatively high level of unrest,” according to Phivolcs. A hazardous eruption remains possible within weeks or even days.