Volcano earthquake report for Tuesday, 5 Aug 2025

Quakes detected near: Akuseki-jima (2 quakes between mag 2.3-2.5), Apaneca Range (1 quake mag 1.9), Askja (7 quakes between mag 0.4-1.0), Bardarbunga (4 quakes between mag 0.5-1.4), Canlaon (1 quake mag 1.7), Cerro Singüil (4 quakes between mag 2.2-2.8)
Clear Lake (27 quakes between mag 0.4-1.8), Coso (4 quakes between mag 0.5-1.7), Daisen (3 quakes between mag 0.3-1.0), Davidof (1 quake mag 1.0), Eldey (8 quakes between mag 0.9-2.2), Hekla (1 quake mag 1.1), Hofsjökull (5 quakes between mag 1.0-1.6), Ibusuku (1 quake mag 1.1), Isla El Tigre (2 quakes between mag 2.3-2.8), Jan Mayen (2 quakes between mag 1.3-2.7), Katla (5 quakes between mag 0.7-2.1), Kolumbo (4 quakes between mag 1.3-1.7), Krísuvík (27 quakes between mag 0.0-1.8), Laacher See (2 quakes between mag 0.4-1.0), Ljósufjöll (5 quakes between mag 0.5-1.5), Loihi (1 quake mag 2.4), Loki-Fögrufjöll volcano (1 quake mag 1.1), Long Valley (1 quake mag 1.4), Michoacán-Guanajuato (14 quakes between mag 2.3-3.0), Mono Lake (1 quake mag 1.6), Ngauruhoe (2 quakes between mag 0.8-1.5), North Vate (1 quake mag 2.9), Omanago (2 quakes between mag 0.3-2.3), Ontake-san (2 quakes between mag 0.1-1.0), Platanar (8 quakes between mag 1.1-1.7), Poas (1 quake mag 1.9), Ragang (1 quake mag 1.7), Romeral (1 quake mag 1.1), Ruapehu (4 quakes between mag 0.7-1.5), Salton Buttes (4 quakes between mag 1.1-3.1), Sandal (1 quake mag 1.2), Spurr (4 quakes between mag 0.0-1.9), Talakmau (1 quake mag 2.5), Tenerife (4 quakes between mag 0.8-1.3), Thordarhyrna (1 quake mag 1.4), Tjörnes Fracture Zone (11 quakes between mag 0.1-1.8), To-shima (1 quake mag 1.3), Unzen (4 quakes between mag 0.1-1.1) (updated 23h50)

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:

Akuseki-jima volcano (Ryukyu Islands): 2 earthquakes up to magnitude 2.5

2 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 40 minutes ago. Hypocenter depths ranged between 10.00 and 0.50 km.
Earthquake details:
2.5 quake East China Sea, Kagoshima-ken, 33 km southwest of Suwanose-jima Island, Japan, Aug 6, 2025 08:10 am (GMT +9) (12 km SW)
2.3 quake East China Sea, Kagoshima-ken, 39 km south of Suwanose-jima Island, Japan, Aug 5, 2025 02:04 pm (GMT +9) (18 km S)
All earthquakes at Akuseki-jima

Cerro Singüil volcano (El Salvador): 4 earthquakes up to magnitude 2.8

4 earthquakes occurred near (under) the volcano during 16 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 8.00 and 6.00 km.
Earthquake details:
2.8 quake 14 km north of Ahuachapan, Departamento de Ahuachapan, El Salvador, Aug 5, 2025 12:22 pm (El Salvador time) (16 km W)
2.4 quake 13 km north of Ahuachapan, Departamento de Ahuachapan, El Salvador, Aug 4, 2025 08:07 pm (GMT -6) (16 km W)
2.3 quake 26 km south of Jutiapa, Departamento de Jutiapa, Guatemala, Aug 5, 2025 02:35 am (GMT -6) (18 km W)
2.2 quake Departamento de Ahuachapan, El Salvador, Aug 4, 2025 09:55 pm (GMT -6) (16 km W)
All earthquakes at Cerro Singüil

Clear Lake volcano (California): 27 earthquakes up to magnitude 1.8

Possible earthquake swarm: 27 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 11.63 and 0.03 km.
Earthquake details: (only 5 largest)
1.8 quake Sonoma County, 13 mi southwest of Clearlake, Lake County, California, United States, Aug 5, 2025 03:42 am (GMT -7) (15 km S)
1.7 quake Sonoma County, 13 mi southwest of Clearlake, Lake County, California, United States, Aug 4, 2025 08:03 pm (GMT -7) (16 km S)
1.5 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Aug 5, 2025 11:58 am (GMT -7) (18 km SSW)
1.3 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Aug 5, 2025 10:45 am (GMT -7) (17 km S)
1.3 quake Lake County, 28 mi north of Santa Rosa, Sonoma County, California, United States, Aug 4, 2025 04:59 pm (GMT -7) (15 km SSW)
All earthquakes at Clear Lake

Eldey volcano (Iceland): 8 earthquakes up to magnitude 2.2

8 earthquakes occurred near (under) the volcano during 3 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 10.10 and 9.00 km.
Earthquake details: (only 5 largest)
2.2 quake Iceland: 4.3 km N of Eldey Aug 5, 2025 03:55 pm (Reykjavik time) (5 km NNE)
2.2 quake Iceland: 3.8 km N of Eldey Aug 5, 2025 03:51 pm (Reykjavik time) (5 km NNE)
2.1 quake Iceland: 4.3 km N of Eldey Aug 5, 2025 03:50 pm (Reykjavik time) (5 km NNE)
2.1 quake Iceland: 4.4 km NNW of Eldey Aug 5, 2025 03:38 pm (Reykjavik time) (5 km N)
1.4 quake Iceland: 3.3 km N of Eldey Aug 5, 2025 06:44 pm (Reykjavik time) (4 km NNE)
All earthquakes at Eldey
Eldey is located at the beginning of the Reykjanes Ridge off the SW tip of Iceland. Its highest elevation is the top of Eldey Island, but most of the volcanic edifice is submerged.

Several eruptions occurred in historic times, last in 1926.

Isla El Tigre volcano (Honduras): 2 earthquakes up to magnitude 2.8

2 earthquakes occurred near (under) the volcano during 2 hours, the last being recorded quake 18 hours ago. Hypocenter depths ranged between 4.00 and 4.00 km.
Earthquake details:
2.8 quake North Pacific Ocean, 30 km southwest of San Lorenzo, Honduras, Aug 4, 2025 09:41 pm (Tegucigalpa time) (6 km WNW)
2.3 quake North Pacific Ocean, 30 km southwest of San Lorenzo, Honduras, Aug 4, 2025 11:57 pm (GMT -6) (6 km WNW)
All earthquakes at Isla El Tigre

Jan Mayen volcano (Atlantic Ocean): 2 earthquakes up to magnitude 2.7

2 earthquakes occurred near (under) the volcano during 6 hours, the last being recorded quake 14 hours ago. Hypocenter depths ranged between 0 and 0.00 km.
Earthquake details:
2.7 quake Norwegian Sea, 26 km northeast of Svalbard Island, Svalbard and Jan Mayen, Aug 5, 2025 11:50 am (GMT +2) (10 km ENE)
1.3 quake Norwegian Sea, 29 km east of Svalbard Island, Jan Mayen, Svalbard and Jan Mayen, Aug 5, 2025 05:36 am (GMT +2) (18 km ESE)
All earthquakes at Jan Mayen

Katla volcano (Iceland): 5 earthquakes up to magnitude 2.1

5 earthquakes occurred near (under) the volcano during 7 hours, the last being recorded quake 16 hours ago. Hypocenter depths ranged between 8.00 and 0.10 km.
Earthquake details:
2.1 quake 8.3 km N of Hábunga Aug 5, 2025 02:43 am (Universal Time) (3 km NNW)
1.9 quake 8.0 km N of Hábunga Aug 5, 2025 02:54 am (Universal Time) (2 km NNW)
1.8 quake 7.5 km ENE of Goðabunga Aug 5, 2025 03:11 am (Universal Time) (3 km NW)
1.3 quake 7.0 km W of Hábunga Aug 5, 2025 01:07 am (Universal Time) (11 km SW)
0.7 quake Iceland: 8.5 km ENE of Goðabunga Aug 5, 2025 08:11 am (Reykjavik time) (3 km NNW)
All earthquakes at Katla

Krísuvík volcano (Reykjanes Peninsula, Iceland): 27 earthquakes up to magnitude 1.8

Possible earthquake swarm: 27 earthquakes occurred near (under) the volcano during 12 hours, the last being recorded quake 11 hours ago. Hypocenter depths ranged between 5.70 and 1.20 km.
Earthquake details: (only 5 largest)
1.8 quake 2.8 km NNW of Krýsuvík Aug 5, 2025 04:02 am (Universal Time) (2 km SSE)
1.5 quake 4.3 km N of Krýsuvík Aug 5, 2025 02:18 am (Universal Time) (1 km ESE)
1.5 quake 3.1 km N of Krýsuvík Aug 5, 2025 02:33 am (Universal Time) (2 km SE)
1.5 quake 4.0 km NE of Krýsuvík Aug 5, 2025 12:24 pm (Universal Time) (4 km ESE)
1.1 quake 2.5 km N of Krýsuvík Aug 5, 2025 06:19 am (Universal Time) (3 km SSE)
All earthquakes at Krísuvík

Loihi volcano (Hawai'i (Big Island)): magnitude 2.4 earthquake

A magnitude 2.4 earthquake occurred at the volcano 20 hours ago. The quake, which might be volcanic in origin, was located at a depth of 31.87 km depth at 18 km distance NW from the volcano.
Earthquake details:
2.4 quake North Pacific Ocean, 13 mi southeast of Pāhala, Hawaii County, Hawaii, United States, Aug 4, 2025 05:47 pm (GMT -10) (18 km NW)
All earthquakes at Loihi

Michoacán-Guanajuato volcano (Western & Central Mexico): 14 earthquakes up to magnitude 3.0

Possible earthquake swarm: 14 earthquakes occurred near (under) the volcano during 10 hours, the last being recorded quake 13 hours ago. Hypocenter depths ranged between 21.70 and 14.20 km.
Earthquake details: (only 5 largest)
3.0 quake 31 km west of Uruapan, Estado de Michoacan de Ocampo, Mexico, Aug 4, 2025 11:24 pm (Mexico City time) (14 km SW)
3.0 quake 30 km west of Uruapan, Estado de Michoacan de Ocampo, Mexico, Aug 5, 2025 04:46 am (Mexico City time) (14 km SW)
2.9 quake 31 km west of Uruapan, Estado de Michoacan de Ocampo, Mexico, Aug 5, 2025 02:40 am (Mexico City time) (15 km SW)
2.8 quake 30 km west of Uruapan, Estado de Michoacan de Ocampo, Mexico, Aug 4, 2025 07:18 pm (Mexico City time) (15 km SW)
2.8 quake 32 km west of Uruapan, Estado de Michoacan de Ocampo, Mexico, Aug 5, 2025 02:47 am (Mexico City time) (15 km SW)
All earthquakes at Michoacán-Guanajuato

North Vate volcano (Vanuatu): magnitude 2.9 earthquake

A magnitude 2.9 earthquake occurred at the volcano 11 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.00 km depth at 8 km distance NNE from the volcano.
Earthquake details:
2.9 quake Coral Sea, 6.4 km northeast of Nguna Island, Shefa Province, Vanuatu, Aug 5, 2025 11:45 pm (Efate time) (8 km NNE)
All earthquakes at North Vate

Omanago volcano (Honshu): 2 earthquakes up to magnitude 2.3

2 earthquakes occurred near (under) the volcano during 60 seconds, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 8.10 and 7.00 km.
Earthquake details:
2.3 quake 12 km northwest of Imaichi, Tochigi, Japan, Aug 6, 2025 05:53 am (GMT +9) (10 km ENE)
0.3 quake 36 km northwest of Utsunomiya, Tochigi, Japan, Aug 6, 2025 05:54 am (GMT +9) (10 km ENE)
All earthquakes at Omanago

Salton Buttes volcano (California): 4 earthquakes up to magnitude 3.1

4 earthquakes occurred near (under) the volcano during 10 hours, the last being recorded quake 12 hours ago. Hypocenter depths ranged between 20.77 and 2.18 km.
Earthquake details:
3.1 quake 16 mi north of Brawley, Imperial County, California, United States, Aug 4, 2025 06:50 pm (Los Angeles time) (5 km ENE)
1.5 quake 4 km SW of Niland, CA, Aug 4, 2025 07:29 pm (GMT -7) (6 km ENE)
1.2 quake Imperial County, 82 mi east of El Cajon, San Diego County, California, United States, Aug 5, 2025 04:57 am (GMT -7) (2 km SSW)
1.1 quake 9 km SSW of Bombay Beach, CA, Aug 4, 2025 07:31 pm (GMT -7) (17 km WNW)
All earthquakes at Salton Buttes

Talakmau volcano (Sumatra): magnitude 2.5 earthquake

A magnitude 2.5 earthquake occurred at the volcano 8 hours ago. The quake, which might be volcanic in origin, was located at a depth of 15.00 km depth at 3 km distance SE from the volcano.
Earthquake details:
2.5 quake Kabupaten Pasaman, 58 km northwest of Bukittinggi, Indonesia, Aug 5, 2025 10:39 pm (GMT +7) (3 km SE)
All earthquakes at Talakmau

Tjörnes Fracture Zone volcano (Iceland): 11 earthquakes up to magnitude 1.8

Possible earthquake swarm: 11 earthquakes occurred near (under) the volcano during 10 hours, the last being recorded quake 14 hours ago. Hypocenter depths ranged between 12.50 and 0.70 km.
Earthquake details: (only 5 largest)
1.8 quake 11.4 km W of Kópasker Aug 5, 2025 01:17 am (Universal Time) (18 km E)
1.5 quake 26.3 km WNW of Kópasker Aug 5, 2025 03:54 am (Universal Time) (10 km NNE)
0.8 quake 26.1 km WNW of Kópasker Aug 5, 2025 03:56 am (Universal Time) (10 km NNE)
0.6 quake 11.1 km W of Kópasker Aug 5, 2025 03:12 am (Universal Time) (18 km E)
0.6 quake Iceland: 11.0 km W of Kópasker Aug 5, 2025 01:56 am (Reykjavik time) (18 km E)
All earthquakes at Tjörnes Fracture Zone

Unnamed 52.92°N/158.52°E volcano (Southern Kamchatka): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 38 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 13 km distance ENE from the volcano.
Earthquake details:
Unconfirmed quake or seismic-like event reported: 12 km southeast of Petropavlovsk-Kamchatskiy, Kamchatka, Russia, Aug 6, 2025 11:11 am (GMT +12) (13 km ENE)
All earthquakes at Unnamed 52.92°N/158.52°E
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