Volcano earthquake report for Thursday, 22 October 2026

Quakes detected near: Balut (5 quakes between mag 1.8-2.8), Baru (1 quake mag 2.4), Clear Lake (28 quakes between mag 0.3-1.6), Coso (1 quake mag 1.3), El Chichón (1 quake mag 2.6), Etna (1 quake mag 1.3)
Fani Maoré (1 quake mag 2.3), Flores (3 quakes between mag 1.8-2.9), Grímsnes (2 quakes between mag 0.6-1.2), Kilauea (1 quake mag 1.9), Krísuvík (6 quakes between mag 0.1-1.3), Loihi (4 quakes between mag 1.7-1.9), Martin (2 quakes between mag 1.1-2.3), Maunaloa (4 quakes between mag 1.5-2.8), Mount St. Helens (1 quake mag 1.7), Paco (1 quake mag 2.6), Poas (1 quake mag 1.9), Ragang (2 quakes between mag 2.5-3.4), Thordarhyrna (2 quakes between mag 0.1-1.1), Torfajökull (5 quakes between mag 0.0-1.6), West Valley Segment (1 quake mag 2.1) (updated 20h50)\n\nNote: Earthquakes within 20 km from and at depths less than 50 km under active volcanoes are reported. The list is not complete because many volcanoes are not monitored and/or seismic data in high resolution is not available publicly.\n
Volcanoes with recent earthquakes above magnitude 2 or more than 10 quakes are listed below:

Balut volcano (Mindanao): 5 earthquakes up to magnitude 2.8

5 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 1 hour 37 minutes ago. Hypocenter depths ranged between 35.00 and 25.00 km.
Earthquake details:
2.8 quake Celebes Sea, 21 km northwest of Sarangani Island, Philippines, Oct 22, 2026 05:02 am (GMT +8) (16 km NNW)
2.2 quake 13 km west of Sarangani, Davao Occidental, Davao, Philippines, Oct 23, 2026 03:13 am (GMT +8) (3 km WSW)
2.1 quake Philippine Sea, 16 km northwest of Sarangani Island, Philippines, Oct 22, 2026 06:05 am (GMT +8) (13 km NNW)
2.0 quake Celebes Sea, 25 km southwest of Sarangani Island, Philippines, Oct 22, 2026 09:25 pm (GMT +8) (14 km SW)
1.8 quake Philippine Sea, 12 km southwest of Sarangani Island, Philippines, Oct 22, 2026 04:56 pm (GMT +8) (3 km SSE)
All earthquakes at Balut
Balut is an 840 m island stratovolcano south of Mindanao whose last known eruption occurred between about 2 million and 11,700 years ago. Hot springs and thermally altered ground occur on its western and southwestern flanks.

Baru volcano (Panama): magnitude 2.4 earthquake

A magnitude 2.4 earthquake occurred at the volcano 19 hours ago. The quake, which might be volcanic in origin, was located at a depth of 12.00 km depth at 17 km distance WNW from the volcano.
Earthquake details:
2.4 quake 39 km north of La Concepcion, Provincia de Chiriqui, Panama, Oct 21, 2026 08:34 pm (Costa_Rica time) (17 km WNW)
All earthquakes at Baru

Clear Lake volcano (California): 28 earthquakes up to magnitude 1.6

Possible earthquake swarm: 28 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 15 minutes ago. Hypocenter depths ranged between 5.04 and 0.07 km.
Earthquake details: (only 5 largest)
1.6 quake Sonoma County, 13 mi southwest of Clearlake, Lake County, California, United States, Oct 21, 2026 11:22 pm (GMT -7) (19 km S)
1.6 quake Sonoma County, 14 mi southwest of Clearlake, Lake County, California, United States, Oct 21, 2026 05:26 pm (GMT -7) (16 km SSW)
1.5 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Oct 21, 2026 10:52 pm (GMT -7) (16 km SSW)
1.3 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Oct 22, 2026 12:13 pm (GMT -7) (17 km SSW)
1.3 quake 26 mi north of Santa Rosa, Sonoma County, California, United States, Oct 22, 2026 03:17 am (GMT -7) (19 km S)
All earthquakes at Clear Lake

El Chichón volcano (Southern Mexico): magnitude 2.6 earthquake

A magnitude 2.6 earthquake occurred at the volcano 20 hours ago. The quake, which might be volcanic in origin, was located at a depth of 3.60 km depth at 1 km distance W from the volcano.
Earthquake details:
2.6 quake Estado de Chiapas, 38 km southwest of Teapa, Estado de Tabasco, Mexico, Oct 21, 2026 06:23 pm (GMT -6) (1 km W)
All earthquakes at El Chichón
El Chichón is a volcanic complex in southern Mexico whose devastating 1982 eruption destroyed its summit dome, produced deadly pyroclastic flows and formed a new crater lake. Geological deposits preserve evidence of repeated explosive eruptions during approximately the past 8,500 years.

Fani Maoré volcano (Indian Ocean): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 21 hours ago. The quake, which might be volcanic in origin, was located at a depth of 37.70 km depth at 13 km distance NW from the volcano.
Earthquake details:
2.3 quake 44 km east of Mamoudzou, Mamoudzou, Mayotte, Oct 22, 2026 02:29 am (GMT +3) (13 km NW)
All earthquakes at Fani Maoré
Fani Maoré is a submarine volcano about 50 km east of Mayotte. Seismic unrest began in May 2018, and surveys in 2019 discovered a new 800-m-high cone and extensive lava flows on the seafloor.

Flores volcano (Guatemala): 3 earthquakes up to magnitude 2.9

3 earthquakes occurred near (under) the volcano during 5 hours, the last being recorded quake 14 hours ago. Hypocenter depths ranged between 6.00 and 5.00 km.
Earthquake details:
2.9 quake 22 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Oct 22, 2026 12:56 am (GMT -6) (14 km WNW)
2.0 quake 24 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Oct 21, 2026 07:56 pm (GMT -6) (14 km NW)
1.8 quake 24 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Oct 21, 2026 07:48 pm (GMT -6) (14 km WNW)
All earthquakes at Flores
Flores, also known as Volcán Amayo, is a volcanic field about 10 km west of Jutiapa in southeastern Guatemala. Its last eruption is undated, and none are known from approximately the past 11,700 years.

Martin volcano (Alaska Peninsula): 2 earthquakes up to magnitude 2.3

2 earthquakes occurred near (under) the volcano during 9 hours, the last being recorded quake 8 hours ago. Hypocenter depths ranged between 5.00 and 5.00 km.
Earthquake details:
2.3 quake Lake and Peninsula Borough, 112 mi west of Kodiak, Kodiak Island Borough, Alaska, United States, Oct 21, 2026 07:52 pm (GMT -8) (2 km NNE)
1.1 quake Lake and Peninsula Borough, 112 mi west of Kodiak, Kodiak Island Borough, Alaska, United States, Oct 22, 2026 04:25 am (GMT -8) (1 km SSW)
All earthquakes at Martin
Mount Martin is a mostly ice-covered Alaskan stratovolcano distinguished by a steaming, ice-free summit crater containing a shallow acidic lake. Reported eruptions in 1951 and 1953 may have come from Martin, but both attributions are uncertain.

Maunaloa volcano (Hawai'i (Big Island)): 4 earthquakes up to magnitude 2.8

4 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 1 hour 18 minutes ago. Hypocenter depths ranged between 33.32 and 0.05 km.
Earthquake details:
2.8 quake 40 mi southwest of Hilo, Hawaii County, Hawaii, United States, Oct 22, 2026 09:32 am (GMT -10) (6 km S)
2.2 quake 24 mi east of Holualoa, Hawaii County, Hawaii, United States, Oct 21, 2026 03:47 pm (GMT -10) (1 km NNE)
1.7 quake 35 mi southwest of Hilo, Hawaii County, Hawaii, United States, Oct 22, 2026 02:33 am (GMT -10) (5 km E)
1.5 quake 40 mi southwest of Hilo, Hawaii County, Hawaii, United States, Oct 22, 2026 09:32 am (GMT -10) (5 km S)
All earthquakes at Maunaloa
Maunaloa is a huge, frequently active shield volcano on Hawaiʻi’s Big Island. Its predominantly lava-producing eruptions include a well-documented episode in November–December 2022.

Paco volcano (Mindanao): magnitude 2.6 earthquake

A magnitude 2.6 earthquake occurred at the volcano 6 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.00 km depth at 15 km distance WSW from the volcano.
Earthquake details:
2.6 quake Philippine Sea, 30 km southwest of Surigao, Philippines, Oct 22, 2026 11:15 pm (GMT +8) (15 km WSW)
All earthquakes at Paco
Paco-Maniayao is a stratovolcano complex at the northeastern tip of Mindanao, distinguished by nested calderas, a breached crater and lava domes. Its youngest dated lava is about 90,000 ± 40,000 years old, while the date of its last eruption is unknown.

Ragang volcano (Mindanao): 2 earthquakes up to magnitude 3.4

2 earthquakes occurred near (under) the volcano during 8 hours, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 10.00 and 3.00 km.
Earthquake details:
3.4 quake 41 km north of Midsayap, Cotabato, Soccsksargen, Philippines, Oct 22, 2026 03:01 pm (GMT +8) (15 km SSE)
2.5 quake Cotabato, Soccsksargen, 18 km west of Wao, Philippines, Oct 22, 2026 11:14 pm (GMT +8) (6 km S)
All earthquakes at Ragang
Ragang is a 2,790 m stratovolcano in central Mindanao with eight confirmed eruptive periods since the mid-18th century. Its last known eruption occurred in 1916 and included a lava flow.

West Valley Segment volcano (North Pacific Ocean): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 13 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 8 km distance ESE from the volcano.
Earthquake details:
2.1 quake North Pacific Ocean, 212 km southwest of Vernon, Regional District of Mount Waddington, British Columbia, Canada, Oct 21, 2026 10:24 pm (GMT -9) (8 km ESE)
All earthquakes at West Valley Segment
West Valley Segment is a submarine fissure-vent cluster at the northern end of the Juan de Fuca Ridge. No eruption is known during approximately the past 12,000 years, though nearly 14,000 earthquakes were detected there during unrest in September 2001.
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