Volcano earthquake report for Thursday, 3 Jul 2025
World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 3 Jul 2025 Number in brackets indicate nr of quakes.

Quakes detected near: Akuseki-jima (26 quakes between mag 2.0-5.1), Azuma (1 quake mag 1.5), Campi Flegrei (Phlegrean Fields) (7 quakes between mag 0.1-2.6), Chaîne des Puys (1 quake mag 1.2), Clear Lake (24 quakes between mag 0.2-1.9), Colima (1 quake mag 2.1)
Coso (7 quakes between mag 0.5-1.5), Cuernos de Negros (1 quake mag 3.0), El Chichón (3 quakes between mag 2.5-3.0), Grímsvötn (1 quake mag 1.2), Huambo (1 quake mag 3.5), Kilauea (1 quake mag 1.9), Klyuchevskoy (1 quake mag 1.7), Kolumbo (1 quake mag 1.9), Krísuvík (3 quakes between mag 0.2-2.0), Langjökull (1 quake mag 1.4), Ljósufjöll (2 quakes between mag 1.1-1.4), Machin (1 quake mag 2.9), Maunaloa (3 quakes between mag 1.7-1.8), Mayotte Island (2 quakes between mag 1.2-1.7), Michoacán-Guanajuato (6 quakes between mag 2.6-3.3), Mount Rainier (9 quakes between mag 0.2-1.4), Mutnovsky (6 quakes between mag 0.0-1.5), Nantai (1 quake mag 1.2), Nasu (1 quake mag 1.0), Olot Field (3 quakes between mag 0.8-1.8), Poas (3 quakes between mag 0.9-2.7), Prestahnukur (3 quakes between mag 1.3-1.5), Roundtop (12 quakes between mag 0.7-2.1), Ruapehu (1 quake mag 1.2), Santorini (1 quake mag 1.3), Svartsengi (3 quakes between mag 0.1-3.0), São Jorge (1 quake mag 2.0), Tjörnes Fracture Zone (5 quakes between mag 0.8-1.2) (updated 09h50)

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): 26 earthquakes up to magnitude 5.1

Possible earthquake swarm: 26 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 49 minutes ago. Hypocenter depths ranged between 30.00 and 4.00 km.
Earthquake details: (only 5 largest)
5.1 quake East China Sea, Kagoshima-ken, 36 km south of Suwanose-jima Island, Japan, Jul 3, 2025 03:18 pm (GMT +9) (8 km SSE)
4.7 quake East China Sea, Kagoshima-ken, 41 km southwest of Suwanose-jima Island, Japan, Jul 3, 2025 06:51 am (GMT +9) (19 km SW)
3.6 quake East China Sea, Kagoshima-ken, 38 km southwest of Suwanose-jima Island, Japan, Jul 2, 2025 07:14 pm (GMT +9) (16 km SW)
3.5 quake East China Sea, Kagoshima-ken, 37 km southwest of Suwanose-jima Island, Japan, Jul 3, 2025 01:39 pm (GMT +9) (15 km SW)
3.5 quake East China Sea, Kagoshima-ken, 40 km southwest of Suwanose-jima Island, Japan, Jul 2, 2025 10:08 pm (GMT +9) (18 km SW)
All earthquakes at Akuseki-jima

Campi Flegrei (Phlegrean Fields) volcano (Italy): 7 earthquakes up to magnitude 2.6

7 earthquakes occurred near (under) the volcano during 11 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 2.40 and 0.54 km.
Earthquake details: (only 5 largest)
2.6 quake 10.1 km west of Naples, Napoli, Campania, Italy, Jul 3, 2025 09:00 am (GMT +2) (6 km NE)
0.5 quake Tyrrhenian Sea, 21 km northeast of Isola d'Ischia Island, Italy, Jul 2, 2025 11:30 pm (GMT +2) (1 km SW)
0.1 quake 1.9 km northwest of Bagnoli, Napoli, Campania, Italy, Jul 3, 2025 08:59 am (GMT +2) (2 km E)
0.1 quake Tyrrhenian Sea, 21 km northeast of Isola d'Ischia Island, Italy, Jul 3, 2025 05:12 am (GMT +2) (1 km SW)
0.1 quake Tyrrhenian Sea, 19 km northeast of Isola d'Ischia Island, Italy, Jul 3, 2025 03:05 am (GMT +2) (4 km SW)
All earthquakes at Campi Flegrei (Phlegrean Fields)

Clear Lake volcano (California): 24 earthquakes up to magnitude 1.9

Possible earthquake swarm: 24 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 5.12 and 0.81 km.
Earthquake details: (only 5 largest)
1.9 quake Sonoma County, 13 mi southwest of Clearlake, Lake County, California, United States, Jul 2, 2025 04:38 pm (GMT -7) (17 km S)
1.5 quake 13 mi southwest of Clearlake, Lake County, California, United States, Jul 2, 2025 06:15 am (GMT -7) (16 km S)
1.1 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Jul 2, 2025 10:39 am (GMT -7) (16 km S)
0.9 quake Lake County, 28 mi north of Santa Rosa, Sonoma County, California, United States, Jul 2, 2025 05:36 am (GMT -7) (14 km S)
0.9 quake 29 mi north of Santa Rosa, Sonoma County, California, United States, Jul 2, 2025 06:45 pm (GMT -7) (18 km SSW)
All earthquakes at Clear Lake

Colima volcano (Western & Central Mexico): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 22 hours ago. The quake, which might be volcanic in origin, was located at a depth of 8.70 km depth at 11 km distance NNW from the volcano.
Earthquake details:
2.1 quake 21 km southwest of Ciudad Guzman, Estado de Jalisco, Mexico, Jul 2, 2025 06:18 am (GMT -6) (11 km NNW)
All earthquakes at Colima

Cuernos de Negros volcano (Central Philippines): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 27 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 11 km distance SE from the volcano.
Earthquake details:
Unconfirmed quake or seismic-like event reported: 16 km southwest of Dumaguete, Philippines, Jul 3, 2025 05:22 pm (GMT +8) (11 km SE)
All earthquakes at Cuernos de Negros

El Chichón volcano (Southern Mexico): 3 earthquakes up to magnitude 3.0

3 earthquakes occurred near (under) the volcano during 10 minutes, the last being recorded quake 12 hours ago. Hypocenter depths ranged between 2.00 and 2.00 km.
Earthquake details:
3.0 quake Estado de Chiapas, 39 km southwest of Teapa, Estado de Tabasco, Mexico, Jul 2, 2025 03:22 pm (GMT -6) (7 km NW)
2.7 quake Estado de Chiapas, 43 km southwest of Teapa, Estado de Tabasco, Mexico, Jul 2, 2025 03:12 pm (GMT -6) (9 km W)
2.5 quake 4.3 km southeast of Ostuacan, Estado de Chiapas, Mexico, Jul 2, 2025 03:11 pm (GMT -6) (8 km WNW)
All earthquakes at El Chichón

Huambo volcano (Peru): magnitude 3.5 earthquake

A magnitude 3.5 earthquake occurred at the volcano 18 hours ago. The quake, which might be volcanic in origin, was located at a depth of 12.00 km depth at 12 km distance NNE from the volcano.
Earthquake details:
3.5 quake 94 km northwest of Arequipa, Arequipa, Peru, Jul 2, 2025 10:47 am (Lima time) (12 km NNE)
All earthquakes at Huambo

Machin volcano (Colombia): magnitude 2.9 earthquake

A magnitude 2.9 earthquake occurred at the volcano 58 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 2.00 km depth at 11 km distance SSE from the volcano.
Earthquake details:
2.9 quake 13 km west of Ibague, Departamento de Tolima, Colombia, Jul 3, 2025 03:52 am (GMT -5) (11 km SSE)
All earthquakes at Machin

Michoacán-Guanajuato volcano (Western & Central Mexico): 6 earthquakes up to magnitude 3.3

6 earthquakes occurred near (under) the volcano during 9 hours, the last being recorded quake 15 hours ago. Hypocenter depths ranged between 18.70 and 10.60 km.
Earthquake details: (only 5 largest)
3.3 quake 26 km west of Uruapan, Estado de Michoacan de Ocampo, Mexico, Jul 2, 2025 03:57 am (GMT -6) (15 km SSW)
3.2 quake 27 km northwest of Uruapan, Estado de Michoacan de Ocampo, Mexico, Jul 2, 2025 12:38 pm (GMT -6) (6 km NNW)
3.0 quake 11 km west of Uruapan, Estado de Michoacan de Ocampo, Mexico, Jul 2, 2025 11:26 am (GMT -6) (15 km SE)
2.7 quake 27 km west of Uruapan, Estado de Michoacan de Ocampo, Mexico, Jul 2, 2025 06:52 am (GMT -6) (17 km SSW)
2.7 quake 32 km north of Apatzingan, Estado de Michoacan de Ocampo, Mexico, Jul 2, 2025 04:04 am (GMT -6) (19 km SW)
All earthquakes at Michoacán-Guanajuato

Poas volcano (Costa Rica): 3 earthquakes up to magnitude 2.7

3 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 6.00 and 1.00 km.
Earthquake details:
2.7 quake Provincia de Alajuela, 43 km north of San Jose, Costa Rica, Jul 2, 2025 10:11 pm (GMT -6) (12 km NNE)
1.1 quake Provincia de Alajuela, 38 km northwest of San Jose, Costa Rica, Jul 2, 2025 07:20 am (GMT -6) (4 km NNW)
0.9 quake Provincia de Alajuela, 39 km northwest of San Jose, Costa Rica, Jul 2, 2025 02:50 pm (GMT -6) (5 km NNW)
All earthquakes at Poas

Roundtop volcano (Aleutian Islands): 12 earthquakes up to magnitude 2.1

Possible earthquake swarm: 12 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 9 hours ago. Hypocenter depths ranged between 7.09 and 1.65 km.
Earthquake details: (only 5 largest)
2.1 quake 49 mi southwest of King Cove, Aleutians East Borough, Alaska, United States, Jul 2, 2025 02:08 pm (GMT -8) (14 km SE)
1.7 quake Bering Sea, 33 mi east of Unimak Island, Aleutians East Borough, Alaska, United States, Jul 2, 2025 10:04 am (GMT -8) (17 km SE)
1.5 quake 18 km S of False Pass, Alaska, Jul 2, 2025 10:02 am (GMT -8) (18 km SE)
1.3 quake 14 km SSW of False Pass, Alaska, Jul 2, 2025 03:30 pm (GMT -8) (12 km SE)
1.3 quake 14 km S of False Pass, Alaska, Jul 2, 2025 01:31 pm (GMT -8) (15 km ESE)
All earthquakes at Roundtop

Svartsengi volcano (Reykjanes Peninsula, Iceland): 3 earthquakes up to magnitude 3.0

3 earthquakes occurred near (under) the volcano during 5 hours, the last being recorded quake 8 hours ago. Hypocenter depths ranged between 10.00 and 1.10 km.
Earthquake details:
Reported seismic-like event (likely no quake): 3 km south of Reykjanesbaer, Southern Peninsula, Iceland, Jul 2, 2025 09:40 pm (GMT +0) (13 km NW)
0.9 quake Iceland: 1.1 km E of Sýlingarfell Jul 3, 2025 01:31 am (Reykjavik time) (2 km NE)
0.1 quake Iceland: 4.4 km NNW of Reykjanestá Jul 2, 2025 08:36 pm (Reykjavik time) (16 km WSW)
All earthquakes at Svartsengi

Unnamed 24.00°N/121.83°E volcano (Taiwan): magnitude 3.7 earthquake

A magnitude 3.7 earthquake occurred at the volcano 39 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 22.70 km depth at 17 km distance SW from the volcano.
Earthquake details:
3.7 quake Philippine Sea, 13 km southeast of Hualien City, Taiwan, Jul 3, 2025 05:10 pm (Taipei time) (17 km SW)
All earthquakes at Unnamed 24.00°N/121.83°E
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