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Mayon Volcano (Philippines) activity update Sep 30, 2025 - Unrest
Wednesday, Oct 1, 2025 | 1 month ago · VN
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Mayon on 30 September 2025 (local). The alert level remained at "1 - Abnormal" (on a 0â5 level sca…Open article
Mayon Volcano (Philippines) activity update Sep 29, 2025 - Unrest
Tuesday, Sep 30, 2025 | 1 month ago · VN
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Mayon on 29 September 2025 (local). The alert level remained at "1 - Abnormal" (on a 0â5 level sca…Open article
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Mayon Volcano (Philippines) activity update Sep 26, 2025 - Unrest
Saturday, Sep 27, 2025 | 1 month ago · VN
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Mayon on 26 September 2025 (local). There were seismically detected rockfalls. The alert level remained at "1 - Abnormal" (on a 0â5 level scale).
Source: Philippine Institute of Volcanology and Seis…Open article
Source: Philippine Institute of Volcanology and Seis…Open article
Mayon Volcano (Philippines) activity update Sep 24, 2025 - Unrest
Thursday, Sep 25, 2025 | 1 month ago · VN
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Mayon on 24 September 2025 (local). Plume(s) were reported. There were 2 seismically detected rockfalls. The alert level remained at "1 - Abnormal" (on a 0â5 level scale).
Source: Philippine Institu…Open article
Source: Philippine Institu…Open article
Mayon Volcano (Philippines) activity update Sep 23, 2025 - Unrest
Wednesday, Sep 24, 2025 | 1 month ago · VN
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Mayon on 23 September 2025 (local). Plume(s) were reported. There were 3 seismically detected rockfalls. The alert level remained at "1 - Abnormal" (on a 0â5 level scale).
Source: Philippine Institu…Open article
Source: Philippine Institu…Open article
Mayon Volcano (Philippines) activity update Sep 19, 2025 - Unrest
Saturday, Sep 20, 2025 | 1 month ago · VN
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Mayon on 19 September 2025 (local). The alert level remained at "1 - Abnormal" (on a 0â5 level scale).
Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
Current Alerts:
Observatory…Open article
Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
Current Alerts:
Observatory…Open article
Mayon Volcano (Philippines) activity update Sep 17, 2025 - Unrest
Thursday, Sep 18, 2025 | 1 month ago · VN
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Mayon on 17 September 2025 (local). Plume(s) were reported. The alert level remained at "1 - Abnormal" (on a 0â5 level scale).
Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
Cu…Open article
Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
Cu…Open article
Mayon Volcano (Philippines) activity update Sep 16, 2025 - Unrest
Wednesday, Sep 17, 2025 | 1 month ago · VN
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Mayon on 16 September 2025 (local). Plume(s) rose to a maximum of 500 meters (1,640 feet) above the vent. Very faint crater incandescence, observable only through a telescope, was reported. The alert …Open article
Mayon Volcano (Philippines) activity update Sep 15, 2025 - Unrest
Tuesday, Sep 16, 2025 | 1 month ago · VN
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Mayon on 15 September 2025 (local). The alert level remained at "1 - Abnormal" (on a 0â5 level scale).
Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
Current Alerts:
Observatory…Open article
Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
Current Alerts:
Observatory…Open article
Mayon Volcano (Philippines) activity update Sep 10, 2025 - Unrest
Thursday, Sep 11, 2025 | 1 month ago · VN
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Mayon on 10 September 2025 (local). Plume(s) were reported. Very faint crater incandescence, observable only through a telescope, was reported. There was 1 seismically detected rockfall. The alert lev…Open article
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Mayon Volcano (Philippines) activity update Sep 9, 2025 - Unrest
Wednesday, Sep 10, 2025 | 2 months ago · VN
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Mayon on 9 September 2025 (local). The alert level at Mayon remained at "1 - Abnormal" (on a 0–5 level scale).
Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
Current Alerts:
Obser…Open article
Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
Current Alerts:
Obser…Open article
Mayon volcano (Philippines) - Smithsonian / USGS Weekly Volcanic Activity Report for 3 September-9 September 2025 (Continuing Activity)
Wednesday, Sep 10, 2025 | 2 months ago · VN
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported increased seismic activity at Mayon. During 0000-1730 on 6 September the seismic network recorded 26 volcanic earthquakes with local magnitudes of 0.4-2.7 which were located 5-10 km beneath the NE flank. Variable inflation ha…The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported increased seismic activity at Mayon. During 0000-1730 on 6 September the seismic network recorded 26 volcanic earthquakes with local magnitudes of 0.4-2.7 which were located 5-10 km beneath the NE flank. Variable inflation had been detected at the NE sector since October 2024 and at the S and SW sectors since March 2025, based on continuous GPS, electronic tilt, and Electronic Distance Measurement (EDM) ground deformation data.
Sulfur dioxide emissions remained near background levels, averaging 430 tonnes/day (t/d) in 2025, with the latest measurement of 609 t/d on 3 September. The Alert Level remained at 1 (on a 0-5 s…Open article
Sulfur dioxide emissions remained near background levels, averaging 430 tonnes/day (t/d) in 2025, with the latest measurement of 609 t/d on 3 September. The Alert Level remained at 1 (on a 0-5 s…Open article
Mayon Volcano (Philippines) activity update Sep 8, 2025 - Unrest
Tuesday, Sep 9, 2025 | 2 months ago · VN
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Mayon on 8 September 2025 (local). The alert level at Mayon remained at "1 - Abnormal" (on a 0–5 level scale). Very faint crater incandescence, observable only through a telescope, was reported.
Sourc…Open article
Sourc…Open article
