Volcano earthquake report for Monday, 11 Aug 2025
World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 11 Aug 2025 Number in brackets indicate nr of quakes.

Quakes detected near: Akuseki-jima (5 quakes between mag 2.1-2.6), Apaneca Range (6 quakes between mag 1.8-2.6), Balut (1 quake mag 2.3), Campi Flegrei (Phlegrean Fields) (28 quakes between mag 0.1-1.2), Cerro Singüil (2 quakes between mag 2.0-2.3), Clear Lake (12 quakes between mag 0.4-1.4)
Eldey (2 quakes between mag 1.1-1.8), Fremrinámar (2 quakes between mag 0.7-1.1), Haku-san (1 quake mag 2.5), Hayes (1 quake mag 1.7), Hunga Tonga-Hunga Ha'apai (1 quake mag 4.9), Katla (2 quakes between mag 0.9-1.7), Kilauea (1 quake mag 1.8), Kolbeinsey Ridge (4 quakes between mag 1.7-2.4), Kolumbo (1 quake mag 1.6), Koshelev (1 quake mag 4.2), Krísuvík (12 quakes between mag 0.0-1.7), Kuju (2 quakes between mag 0.6-1.1), Kukak (1 quake mag 1.9), Laacher See (1 quake mag 3.0), Ljósufjöll (6 quakes between mag 0.3-1.4), Loki-Fögrufjöll volcano (7 quakes between mag 0.7-1.8), Michoacán-Guanajuato (3 quakes between mag 2.3-2.9), Oshima (1 quake mag 4.0), Platanar (1 quake mag 2.8), Pocdol Mountains (4 quakes between mag 1.6-2.0), San Miguel (1 quake mag 3.0), Sangangüey (1 quake mag 3.0), Spurr (3 quakes between mag 1.5-1.7), Suwanose-jima (3 quakes between mag 1.9-2.1), Theistareykjarbunga (2 quakes between mag 1.0-1.9), Thordarhyrna (2 quakes between mag 1.5-1.7), To-shima (6 quakes between mag 0.9-2.2), White Island (1 quake mag 3.0) (updated 01h50)

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): 5 earthquakes up to magnitude 2.6

5 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 17.00 and 0.00 km.
Earthquake details:
2.6 quake East China Sea, Kagoshima-ken, 35 km southwest of Suwanose-jima Island, Japan, Aug 11, 2025 08:15 am (GMT +9) (12 km SW)
2.6 quake East China Sea, Kagoshima-ken, 35 km southwest of Suwanose-jima Island, Japan, Aug 10, 2025 04:56 pm (GMT +9) (13 km SSW)
2.3 quake East China Sea, Kagoshima-ken, 37 km southwest of Suwanose-jima Island, Japan, Aug 10, 2025 06:57 pm (GMT +9) (12 km SW)
2.1 quake East China Sea, Kagoshima-ken, 39 km southwest of Suwanose-jima Island, Japan, Aug 11, 2025 04:02 am (GMT +9) (16 km SW)
2.1 quake East China Sea, Kagoshima-ken, 33 km southwest of Suwanose-jima Island, Japan, Aug 11, 2025 01:20 am (GMT +9) (11 km SSW)
All earthquakes at Akuseki-jima

Apaneca Range volcano (El Salvador): 6 earthquakes up to magnitude 2.6

6 earthquakes occurred near (under) the volcano during 10 hours, the last being recorded quake 10 hours ago. Hypocenter depths ranged between 11.00 and 5.00 km.
Earthquake details: (only 5 largest)
2.6 quake 12 km north of Ahuachapan, Departamento de Ahuachapan, El Salvador, Aug 9, 2025 11:41 pm (GMT -6) (16 km NNW)
2.4 quake 13 km north of Ahuachapan, Departamento de Ahuachapan, El Salvador, Aug 9, 2025 11:50 pm (GMT -6) (18 km NNW)
2.2 quake 11 km north of Ahuachapan, Departamento de Ahuachapan, El Salvador, Aug 10, 2025 07:36 am (GMT -6) (15 km NNW)
2.1 quake 10 km north of Ahuachapan, Departamento de Ahuachapan, El Salvador, Aug 10, 2025 09:39 am (GMT -6) (14 km NNW)
1.9 quake 14 km north of Ahuachapan, Departamento de Ahuachapan, El Salvador, Aug 9, 2025 11:30 pm (GMT -6) (17 km NNW)
All earthquakes at Apaneca Range

Balut volcano (Mindanao): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 17 hours ago. The quake, which might be volcanic in origin, was located at a depth of 19.00 km depth at 15 km distance NW from the volcano.
Earthquake details:
2.3 quake Celebes Sea, 22 km west of Sarangani Island, Philippines, Aug 10, 2025 05:04 pm (GMT +8) (15 km NW)
All earthquakes at Balut

Campi Flegrei (Phlegrean Fields) volcano (Italy): 28 earthquakes up to magnitude 1.2

Possible earthquake swarm: 28 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 3.13 and 0.01 km.
Earthquake details: (only 5 largest)
1.2 quake 4.3 km southeast of Pozzuoli, Napoli, Campania, Italy, Aug 10, 2025 06:43 am (GMT +2) (1 km SSW)
1.1 quake Campi Flegrei Aug 10, 2025 03:51 pm (GMT +2) (3 km WNW)
1.0 quake 13 km west of Naples, Napoli, Campania, Italy, Aug 10, 2025 03:51 pm (GMT +2) (13 km NW)
0.5 quake 4.5 km southeast of Pozzuoli, Napoli, Campania, Italy, Aug 10, 2025 02:42 pm (GMT +2) (0 km SSE)
0.5 quake 4.1 km southeast of Pozzuoli, Napoli, Campania, Italy, Aug 10, 2025 10:31 am (GMT +2) (0 km NNE)
All earthquakes at Campi Flegrei (Phlegrean Fields)

Cerro Singüil volcano (El Salvador): 2 earthquakes up to magnitude 2.3

2 earthquakes occurred near (under) the volcano during 4 hours, the last being recorded quake 11 hours ago. Hypocenter depths ranged between 11.00 and 6.00 km.
Earthquake details:
2.3 quake 14 km Al Norte De Ahuachapan, El Salvador, Aug 10, 2025 08:30 am (GMT -6) (17 km W)
2.0 quake 15 km north of Ahuachapan, Departamento de Ahuachapan, El Salvador, Aug 10, 2025 04:41 am (GMT -6) (17 km W)
All earthquakes at Cerro Singüil

Clear Lake volcano (California): 12 earthquakes up to magnitude 1.4

Possible earthquake swarm: 12 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 3.64 and 0.39 km.
Earthquake details: (only 5 largest)
1.4 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Aug 10, 2025 11:01 am (GMT -7) (18 km SSW)
1.3 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Aug 10, 2025 07:55 am (GMT -7) (17 km SSW)
1.0 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Aug 10, 2025 01:10 am (GMT -7) (18 km SSW)
1.0 quake Lake County, 28 mi north of Santa Rosa, Sonoma County, California, United States, Aug 9, 2025 11:06 pm (GMT -7) (15 km S)
0.9 quake Lake County, 28 mi north of Santa Rosa, Sonoma County, California, United States, Aug 10, 2025 03:34 pm (GMT -7) (15 km S)
All earthquakes at Clear Lake

Haku-san volcano (Honshu): magnitude 2.5 earthquake

A magnitude 2.5 earthquake occurred at the volcano 1 hour 34 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 8.00 km depth at 18 km distance S from the volcano.
Earthquake details:
2.5 quake 33 km northwest of Gujo, Gifu, Japan, Aug 11, 2025 09:15 am (GMT +9) (18 km S)
All earthquakes at Haku-san

Hunga Tonga-Hunga Ha'apai volcano (Tonga): magnitude 4.9 earthquake

A magnitude 4.9 earthquake occurred at the volcano 9 hours ago. The quake, which might be volcanic in origin, was located at a depth of 35.00 km depth at 17 km distance SW from the volcano.
Earthquake details:
4.9 quake South Pacific Ocean, 58 km northwest of Nuku'alofa, Tongatapu, Tonga, Aug 11, 2025 05:36 am (Tongatapu time) (17 km SW)
All earthquakes at Hunga Tonga-Hunga Ha'apai

Kolbeinsey Ridge volcano (Iceland): 4 earthquakes up to magnitude 2.4

4 earthquakes occurred near (under) the volcano during 7 hours, the last being recorded quake 7 hours ago. Hypocenter depths ranged between 10.10 and 1.50 km.
Earthquake details:
2.4 quake 35.0 km NW of Grímsey Aug 10, 2025 12:13 pm (Universal Time) (15 km N)
1.7 quake Iceland: 34.8 km NW of Grímsey Aug 10, 2025 06:46 pm (Reykjavik time) (14 km N)
1.7 quake Iceland: 34.3 km NW of Grímsey Aug 10, 2025 06:47 pm (Reykjavik time) (13 km N)
1.7 quake Iceland: 31.9 km NW of Grímsey Aug 10, 2025 04:50 pm (Reykjavik time) (11 km N)
All earthquakes at Kolbeinsey Ridge

Koshelev volcano (Southern Kamchatka): magnitude 4.2 earthquake

A magnitude 4.2 earthquake occurred at the volcano 24 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.08 km depth at 18 km distance WSW from the volcano.
Earthquake details:
4.2 quake Sea of Okhotsk, 24 km south of Ozernovskiy, Kamchatka, Russia, Aug 10, 2025 02:17 pm (Kamchatka time) (18 km WSW)
All earthquakes at Koshelev

Krísuvík volcano (Reykjanes Peninsula, Iceland): 12 earthquakes up to magnitude 1.7

Possible earthquake swarm: 12 earthquakes occurred near (under) the volcano during 14 hours, the last being recorded quake 10 hours ago. Hypocenter depths ranged between 4.60 and 3.40 km.
Earthquake details: (only 5 largest)
1.7 quake 0.9 km ENE of Krýsuvík Aug 10, 2025 02:09 pm (Universal Time) (5 km SSE)
0.9 quake Iceland: 1.0 km ENE of Krýsuvík Aug 10, 2025 03:37 pm (Reykjavik time) (5 km SSE)
0.9 quake Iceland: 0.8 km NE of Krýsuvík Aug 10, 2025 03:57 pm (Reykjavik time) (5 km SSE)
0.9 quake 3.5 km N of Krýsuvík Aug 10, 2025 01:51 am (Universal Time) (2 km SE)
0.8 quake Iceland: 3.3 km NNE of Krýsuvík Aug 10, 2025 03:54 am (Reykjavik time) (3 km ESE)
All earthquakes at Krísuvík

Laacher See volcano (Germany): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 15 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 1 km distance WNW from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 24 km west of Koblenz, Kreisfreie Stadt Pirmasens, Rheinland-Pfalz, Germany, Aug 10, 2025 11:00 am (GMT +0) (1 km WNW)
All earthquakes at Laacher See

Michoacán-Guanajuato volcano (Western & Central Mexico): 3 earthquakes up to magnitude 2.9

3 earthquakes occurred near (under) the volcano during 7 hours, the last being recorded quake 16 hours ago. Hypocenter depths ranged between 16.30 and 14.00 km.
Earthquake details:
2.9 quake 33 km west of Uruapan, Estado de Michoacan de Ocampo, Mexico, Aug 10, 2025 03:24 am (GMT -6) (16 km SW)
2.6 quake 28 km west of Uruapan, Estado de Michoacan de Ocampo, Mexico, Aug 9, 2025 08:52 pm (GMT -6) (14 km SSW)
2.3 quake 20 km west of Uruapan, Estado de Michoacan de Ocampo, Mexico, Aug 10, 2025 12:00 am (GMT -6) (8 km S)
All earthquakes at Michoacán-Guanajuato

Oshima volcano (Izu Islands): magnitude 4.0 earthquake

A magnitude 4.0 earthquake occurred at the volcano 15 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 13 km distance S from the volcano.
Earthquake details:
4.0 quake North Pacific Ocean, Tokyo, 50 km southeast of Ito, Shizuoka, Japan, Aug 10, 2025 08:08 pm (GMT +9) (13 km S)
All earthquakes at Oshima

Platanar volcano (Costa Rica): magnitude 2.8 earthquake

A magnitude 2.8 earthquake occurred at the volcano 16 hours ago. The quake, which might be volcanic in origin, was located at a depth of 11.00 km depth at 9 km distance SSE from the volcano.
Earthquake details:
2.8 quake Provincia de Alajuela, 42 km northwest of San Jose, Costa Rica, Aug 10, 2025 04:11 am (GMT -6) (9 km SSE)
All earthquakes at Platanar

San Miguel volcano (El Salvador): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 14 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 13 km distance NE from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 3.7 km north of San Miguel, Departamento de San Miguel, El Salvador, Aug 10, 2025 05:38 am (GMT -6) (13 km NE)
All earthquakes at San Miguel

Sangangüey volcano (Western & Central Mexico): magnitude 3.0 earthquake

A magnitude 3.0 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 16 km distance WNW from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 2.5 km east of Tepic, Estado de Nayarit, Mexico, Aug 10, 2025 02:21 am (GMT -7) (16 km WNW)
All earthquakes at Sangangüey

Suwanose-jima volcano (Ryukyu Islands): 3 earthquakes up to magnitude 2.1

3 earthquakes occurred near (under) the volcano during 2 hours, the last being recorded quake 16 hours ago. Hypocenter depths ranged between 2.00 and 0.00 km.
Earthquake details:
2.1 quake East China Sea, Kagoshima-ken, 7 km south of Suwanose-jima Island, Japan, Aug 10, 2025 04:13 pm (GMT +9) (7 km S)
1.9 quake East China Sea, Kagoshima-ken, 6.9 km east of Suwanose-jima Island, Japan, Aug 10, 2025 06:25 pm (GMT +9) (7 km E)
1.9 quake Japan: Near Tokara Islands Aug 10, 2025 06:17 pm (GMT +9) (7 km E)
All earthquakes at Suwanose-jima

To-shima volcano (Izu Islands): 6 earthquakes up to magnitude 2.2

6 earthquakes occurred near (under) the volcano during 1 hour 5 minutes, the last being recorded quake 14 hours ago. Hypocenter depths ranged between 13.90 and 10.30 km.
Earthquake details: (only 5 largest)
2.2 quake North Pacific Ocean, Tokyo, 45 km east of Shimoda, Shizuoka, Japan, Aug 10, 2025 09:16 pm (GMT +9) (14 km ENE)
1.5 quake North Pacific Ocean, Tokyo, 45 km east of Shimoda, Shizuoka, Japan, Aug 10, 2025 08:29 pm (GMT +9) (12 km ENE)
1.5 quake North Pacific Ocean, Tokyo, 45 km east of Shimoda, Shizuoka, Japan, Aug 10, 2025 08:12 pm (GMT +9) (14 km ENE)
1.4 quake North Pacific Ocean, Tokyo, 44 km east of Shimoda, Shizuoka, Japan, Aug 10, 2025 09:17 pm (GMT +9) (13 km ENE)
1.2 quake North Pacific Ocean, Tokyo, 45 km east of Shimoda, Shizuoka, Japan, Aug 10, 2025 08:46 pm (GMT +9) (14 km ENE)
All earthquakes at To-shima

White Island volcano (New Zealand): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 9 hours ago. The quake, which might be volcanic in origin, was located at a depth of 43.20 km depth at 18 km distance SSE from the volcano.
Earthquake details:
3.0 quake South Pacific Ocean, 38 km northeast of Whakatane, Bay of Plenty, New Zealand, Aug 11, 2025 04:37 am (GMT +12) (18 km SSE)
All earthquakes at White Island
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/277712/Volcano-earthquake-report-for-Monday-11-Aug-2025.html