Volcano earthquake report for Wednesday, 5 Aug 2026

Quakes detected near: Balut (27 quakes between mag 1.5-4.0), Black Peak (1 quake mag 1.1), Brennisteinsfjöll (9 quakes between mag 0.0-1.0), Buzzard Creek (1 quake mag 2.4), Cabalian (1 quake mag 4.4), Cagua (1 quake mag 2.2)
Campi Flegrei (Phlegrean Fields) (4 quakes between mag 0.1-1.0), Clear Lake (11 quakes between mag 0.7-1.8), Coso (3 quakes between mag 0.6-1.1), Eldey (4 quakes between mag 0.2-1.5), Eyafjallajökull (2 quakes between mag 0.0-1.1), Gareloi (1 quake mag 1.0), Hofsjökull (1 quake mag 1.5), Hrómundartindur (1 quake mag 1.1), Hulubelu (2 quakes between mag 1.9-2.0), Irazu (4 quakes between mag 0.8-1.8), Jan Mayen (3 quakes between mag 0.7-1.3), Katla (4 quakes between mag 0.6-1.7), Kembar (1 quake mag 3.2), Kolumbo (1 quake mag 1.8), Krísuvík (14 quakes between mag 0.0-1.7), Kurikoma (1 quake mag 2.5), Loihi (1 quake mag 1.9), Mayon (1 quake mag 2.0), Santo Tomas (1 quake mag 1.7), Talakmau (1 quake mag 2.5), Talang (1 quake mag 2.2), Tana (1 quake mag 2.1), Tandikat (1 quake mag 2.5), Tolimán (1 quake mag 3.0), Whale Island (1 quake mag 1.8) (updated 15h50)

Note: 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.

Volcanoes with recent earthquakes above magnitude 2 or more than 10 quakes are listed below:

Balut volcano (Mindanao): 27 earthquakes up to magnitude 4.0

Possible earthquake swarm: 27 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 1 hour 17 minutes ago. Hypocenter depths ranged between 44.00 and 2.00 km.
Earthquake details: (only 5 largest)
4.0 quake Celebes Sea, 22 km west of Sarangani Island, Philippines, Aug 5, 2026 03:02 pm (Manila time) (12 km WNW)
3.6 quake Philippine Sea, 17 km south of Sarangani Island, Philippines, Aug 5, 2026 02:36 pm (Manila time) (15 km SE)
3.5 quake Celebes Sea, 24 km southwest of Sarangani Island, Philippines, Aug 5, 2026 09:14 pm (Manila time) (13 km SSW)
2.8 quake Celebes Sea, 28 km southwest of Sarangani Island, Philippines, Aug 5, 2026 01:00 pm (GMT +8) (16 km SW)
2.7 quake Celebes Sea, 26 km southwest of Sarangani Island, Philippines, Aug 5, 2026 06:34 pm (GMT +8) (16 km SSW)
All earthquakes at Balut

Buzzard Creek volcano (Eastern Alaska): magnitude 2.4 earthquake

A magnitude 2.4 earthquake occurred at the volcano 16 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.00 km depth at 15 km distance W from the volcano.
Earthquake details:
2.4 quake 15 mi northeast of Healy, Denali Borough, Alaska, United States, Aug 4, 2026 03:32 pm (GMT -8) (15 km W)
All earthquakes at Buzzard Creek

Cabalian volcano (Central Philippines): magnitude 4.4 earthquake

A magnitude 4.4 earthquake occurred at the volcano 8 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 19 km distance WNW from the volcano.
Earthquake details:
4.4 quake 9.9 km east of Sogod, Province of Southern Leyte, Eastern Visayas, Philippines, Aug 5, 2026 04:11 pm (Manila time) (19 km WNW)
All earthquakes at Cabalian

Cagua volcano (Luzon Island): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 19 hours ago. The quake, which might be volcanic in origin, was located at a depth of 16.00 km depth at 8 km distance W from the volcano.
Earthquake details:
2.2 quake 46 km east of Aparri, Province of Cagayan, Cagayan Valley, Philippines, Aug 5, 2026 04:52 am (GMT +8) (8 km W)
All earthquakes at Cagua

Clear Lake volcano (California): 11 earthquakes up to magnitude 1.8

Possible earthquake swarm: 11 earthquakes occurred near (under) the volcano during 13 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 3.29 and 1.60 km.
Earthquake details: (only 5 largest)
1.8 quake Sonoma County, 13 mi southwest of Clearlake, Lake County, California, United States, Aug 4, 2026 09:35 pm (GMT -7) (16 km SSW)
1.5 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Aug 4, 2026 04:34 pm (GMT -7) (17 km S)
1.0 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Aug 5, 2026 05:50 am (GMT -7) (17 km SSW)
1.0 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Aug 5, 2026 05:44 am (GMT -7) (16 km S)
1.0 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Aug 5, 2026 04:09 am (GMT -7) (18 km SSW)
All earthquakes at Clear Lake

Kembar volcano (Sumatra): magnitude 3.2 earthquake

A magnitude 3.2 earthquake occurred at the volcano 16 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 11 km distance S from the volcano.
Earthquake details:
3.2 quake Kabupaten Gayo Lues, 87 km southwest of Langsa, Indonesia, Aug 5, 2026 07:13 am (GMT +7) (11 km S)
All earthquakes at Kembar

Krísuvík volcano (Reykjanes Peninsula, Iceland): 14 earthquakes up to magnitude 1.7

Possible earthquake swarm: 14 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 21.40 and 0.00 km.
Earthquake details: (only 5 largest)
1.7 quake 5.7 km NE of Krýsuvík Aug 5, 2026 11:06 am (Universal Time) (5 km E)
0.7 quake Iceland: 5.8 km NE of Krýsuvík Aug 5, 2026 11:07 am (Reykjavik time) (6 km E)
0.6 quake 4.5 km ENE of Krýsuvík Aug 5, 2026 11:34 am (Universal Time) (6 km ESE)
0.6 quake 5.4 km NE of Krýsuvík Aug 5, 2026 11:18 am (Universal Time) (6 km E)
0.6 quake 1.3 km NW of Krýsuvík Aug 4, 2026 05:47 pm (Universal Time) (4 km SSE)
All earthquakes at Krísuvík

Kurikoma volcano (Honshu): magnitude 2.5 earthquake

A magnitude 2.5 earthquake occurred at the volcano 17 hours ago. The quake, which might be volcanic in origin, was located at a depth of 9.30 km depth at 15 km distance NE from the volcano.
Earthquake details:
2.5 quake 24 km northwest of Ichinoseki, Iwate, Japan, Aug 5, 2026 07:29 am (GMT +9) (15 km NE)
All earthquakes at Kurikoma

Talakmau volcano (Sumatra): magnitude 2.5 earthquake

A magnitude 2.5 earthquake occurred at the volcano 18 hours ago. The quake, which might be volcanic in origin, was located at a depth of 8.00 km depth at 8 km distance S from the volcano.
Earthquake details:
2.5 quake Kabupaten Pasaman Barat, 56 km northwest of Bukittinggi, Indonesia, Aug 5, 2026 04:55 am (GMT +7) (8 km S)
All earthquakes at Talakmau

Talang volcano (Sumatra): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 15 hours ago. The quake, which might be volcanic in origin, was located at a depth of 8.00 km depth at 11 km distance SE from the volcano.
Earthquake details:
2.2 quake Kabupaten Solok, 30 km south of Solok, Indonesia, Aug 5, 2026 07:31 am (GMT +7) (11 km SE)
All earthquakes at Talang

Tana volcano (Aleutian Islands): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 16 hours ago. The quake, which might be volcanic in origin, was located at a depth of 1.65 km depth at 6 km distance NNE from the volcano.
Earthquake details:
2.1 quake Bering Sea, 4.2 mi northeast of Chuginadak Island, Aleutians West Census Area, Alaska, United States, Aug 4, 2026 02:32 pm (GMT -9) (6 km NNE)
All earthquakes at Tana

Tandikat volcano (Sumatra): magnitude 2.5 earthquake

A magnitude 2.5 earthquake occurred at the volcano 1 hour 37 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 3.00 km depth at 2 km distance W from the volcano.
Earthquake details:
2.5 quake Kabupaten Agam, 16 km southwest of Bukittinggi, Indonesia, Aug 5, 2026 09:13 pm (GMT +7) (2 km W)
All earthquakes at Tandikat

Tolimán volcano (Guatemala): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 21 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 5 km distance NW from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 32 km east of Mazatenango, Departamento de Suchitepequez, Guatemala, Aug 4, 2026 12:50 pm (GMT -6) (5 km NW)
All earthquakes at Tolimán
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