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

Quakes detected near: Akuseki-jima (1 quake mag 2.9), Arenal (1 quake mag 2.3), Azuma (1 quake mag 1.4), Bandai (1 quake mag 1.0), Bardarbunga (3 quakes between mag 0.9-1.0), Campi Flegrei (Phlegrean Fields) (72 quakes between mag 0.1-2.5)
Cerro Bravo (1 quake mag 1.6), Cerro Negro de Mayasquer (1 quake mag 3.2), Clear Lake (13 quakes between mag 0.2-2.0), Comondu-La Purisima (1 quake mag 3.0), Coso (1 quake mag 1.0), El Chichón (6 quakes between mag 1.7-2.9), Gran Canaria (4 quakes between mag 0.9-3.0), Grímsvötn (5 quakes between mag 0.4-1.9), Hiuchi (4 quakes between mag 0.2-1.1), Irazu (1 quake mag 1.3), Katla (5 quakes between mag 0.1-1.4), Kilauea (1 quake mag 1.9), Kolumbo (2 quakes between mag 1.2-1.4), Komaga-take (1 quake mag 1.1), Krísuvík (10 quakes between mag 0.0-2.1), Leonard Range (1 quake mag 2.1), Loki-Fögrufjöll volcano (2 quakes between mag 0.7-1.0), Methana (1 quake mag 2.3), North Vate (1 quake mag 3.0), Okataina (Tarawera) (1 quake mag 2.2), San Pablo (1 quake mag 3.0), San Salvador (1 quake mag 3.4), Talang (2 quakes between mag 2.3-2.4), Tambora (1 quake mag 2.1), Taupo (1 quake mag 1.7), Tenorio (1 quake mag 2.0), To-shima (1 quake mag 2.1), Volcán Azul (1 quake mag 3.0) (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): magnitude 2.9 earthquake

A magnitude 2.9 earthquake occurred at the volcano 1 hour 35 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 0 km depth at 10 km distance SSW from the volcano.
Earthquake details:
2.9 quake East China Sea, Kagoshima-ken, 32 km southwest of Suwanose-jima Island, Japan, Oct 20, 2025 05:15 pm (GMT +9) (10 km SSW)
All earthquakes at Akuseki-jima

Arenal volcano (Costa Rica): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 9 hours ago. The quake, which might be volcanic in origin, was located at a depth of 0 km depth at 4 km distance NE from the volcano.
Earthquake details:
2.3 quake 32 km northwest of Quesada, Provincia de Alajuela, Costa Rica, Oct 19, 2025 07:17 pm (Costa Rica time) (4 km NE)
All earthquakes at Arenal

Campi Flegrei (Phlegrean Fields) volcano (Italy): 72 earthquakes up to magnitude 2.5

Possible earthquake swarm: 72 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 1 hour 23 minutes ago. Hypocenter depths ranged between 4.05 and 0.03 km.
Earthquake details: (only 5 largest)
2.5 quake 10.6 km west of Naples, Napoli, Campania, Italy, Oct 20, 2025 04:47 am (Rome time) (2 km N)
2.2 quake 10.9 km west of Naples, Napoli, Campania, Italy, Oct 19, 2025 11:57 pm (Rome time) (2 km E)
1.1 quake 3.3 km southeast of Pozzuoli, Napoli, Campania, Italy, Oct 19, 2025 04:39 pm (GMT +2) (1 km NW)
1.1 quake 10.4 km west of Naples, Napoli, Campania, Italy, Oct 20, 2025 07:15 am (GMT +2) (0 km NE)
1.0 quake Tyrrhenian Sea, 18 km northeast of Isola d'Ischia Island, Italy, Oct 19, 2025 06:55 pm (GMT +2) (4 km SW)
All earthquakes at Campi Flegrei (Phlegrean Fields)

Cerro Negro de Mayasquer volcano (Colombia): 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 2.00 km depth at 4 km distance SE from the volcano.
Earthquake details:
3.2 quake 25 km west of Tulcán, Provincia del Carchi, Ecuador, Oct 19, 2025 01:01 pm (Guayaquil time) (4 km SE)
All earthquakes at Cerro Negro de Mayasquer

Clear Lake volcano (California): 13 earthquakes up to magnitude 2.0

Possible earthquake swarm: 13 earthquakes occurred near (under) the volcano during 24 hours, the last being recorded quake 19 minutes ago. Hypocenter depths ranged between 9.05 and 0.82 km.
Earthquake details: (only 5 largest)
2.0 quake Sonoma County, 13 mi southwest of Clearlake, Lake County, California, United States, Oct 19, 2025 06:06 pm (Los Angeles time) (17 km S)
1.5 quake Sonoma County, 13 mi southwest of Clearlake, Lake County, California, United States, Oct 19, 2025 08:31 am (GMT -7) (17 km S)
1.1 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, Oct 19, 2025 06:21 pm (GMT -7) (15 km SSW)
1.1 quake Lake County, 28 mi north of Santa Rosa, Sonoma County, California, United States, Oct 19, 2025 03:09 am (GMT -7) (15 km S)
1.0 quake 26 mi north of Santa Rosa, Sonoma County, California, United States, Oct 19, 2025 06:07 pm (GMT -7) (17 km S)
All earthquakes at Clear Lake

Comondu-La Purisima volcano (Baja California, NW Mexico & Mexican Islands): 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 13.40 km depth at 9 km distance SE from the volcano.
Earthquake details:
3.0 quake 6 km southwest of San Jose del Cabo, Estado de Baja California Sur, Mexico, Oct 19, 2025 06:16 am (Mazatlan time) (9 km SE)
All earthquakes at Comondu-La Purisima

El Chichón volcano (Southern Mexico): 6 earthquakes up to magnitude 2.9

6 earthquakes occurred near (under) the volcano during 11 hours, the last being recorded quake 13 hours ago. Hypocenter depths ranged between 3.70 and 1.90 km.
Earthquake details: (only 5 largest)
2.9 quake Estado de Chiapas, 37 km southwest of Teapa, Estado de Tabasco, Mexico, Oct 19, 2025 09:43 am (Merida time) (1 km SSW)
2.4 quake Estado de Chiapas, 36 km southwest of Teapa, Estado de Tabasco, Mexico, Oct 19, 2025 02:54 pm (Merida time) (1 km NNW)
2.4 quake Estado de Chiapas, 37 km southwest of Teapa, Estado de Tabasco, Mexico, Oct 19, 2025 03:58 am (Merida time) (1 km SSW)
2.1 quake Estado de Chiapas, 35 km southwest of Teapa, Estado de Tabasco, Mexico, Oct 19, 2025 04:57 am (Merida time) (2 km ESE)
1.8 quake Estado de Chiapas, 36 km southwest of Teapa, Estado de Tabasco, Mexico, Oct 19, 2025 01:35 pm (Merida time) (1 km NNE)
All earthquakes at El Chichón

Gran Canaria volcano (Canary Islands): 4 earthquakes up to magnitude 3.0

4 earthquakes occurred near (under) the volcano during 1 hour 10 minutes, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 10.00 and 4.00 km.
Earthquake details:
Reported seismic-like event (likely no quake): 29 km west of Las Palmas de Gran Canaria, Las Palmas, Canary Islands, Spain, Oct 20, 2025 04:19 am (GMT +0) (11 km NW)
2.2 quake 8.6 km southwest of Galdar, Las Palmas, Canary Islands, Spain, Oct 20, 2025 04:08 am (Canary time) (11 km WNW)
0.9 quake 28 km west of Las Palmas de Gran Canaria, Las Palmas, Canary Islands, Spain, Oct 20, 2025 04:59 am (GMT +1) (10 km WNW)
0.9 quake 29 km west of Las Palmas de Gran Canaria, Las Palmas, Canary Islands, Spain, Oct 20, 2025 04:50 am (GMT +1) (11 km NW)
All earthquakes at Gran Canaria

Krísuvík volcano (Reykjanes Peninsula, Iceland): 10 earthquakes up to magnitude 2.1

10 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 4.60 and 2.70 km.
Earthquake details: (only 5 largest)
2.1 quake 3.8 km NNE of Krýsuvík Oct 20, 2025 02:27 am (Reykjavik time) (3 km ESE)
2.0 quake 3.7 km NNE of Krýsuvík Oct 20, 2025 05:05 am (Reykjavik time) (3 km ESE)
1.2 quake Iceland: 3.3 km N of Krýsuvík Oct 20, 2025 01:26 am (Reykjavik time) (3 km SE)
1.1 quake Iceland: 3.6 km NNE of Krýsuvík Oct 20, 2025 02:27 am (Reykjavik time) (3 km ESE)
0.4 quake 6.0 km NNE of Krýsuvík Oct 19, 2025 10:08 am (Universal Time) (3 km ENE)
All earthquakes at Krísuvík

Leonard Range volcano (Mindanao): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 24 hours ago. The quake, which might be volcanic in origin, was located at a depth of 25.00 km depth at 12 km distance SW from the volcano.
Earthquake details:
2.1 quake Davao de Oro, 25 km southeast of Magugpo Poblacion, Philippines, Oct 19, 2025 05:59 pm (Manila time) (12 km SW)
All earthquakes at Leonard Range

Methana volcano (Greece): 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 5.00 km depth at 18 km distance SSW from the volcano.
Earthquake details:
2.3 quake 8.9 km north of Ermioni, Argolida, Peloponnese, Greece, Oct 19, 2025 03:42 pm (Athens time) (18 km SSW)
All earthquakes at Methana

North Vate volcano (Vanuatu): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 24 hours ago. The quake, which might be volcanic in origin, was located at a depth of 0 km depth at 11 km distance S from the volcano.
Earthquake details:
3.0 quake 19 km north of Port Vila, Shefa Province, Vanuatu, Oct 19, 2025 08:54 pm (Efate time) (11 km S)
All earthquakes at North Vate

Okataina (Tarawera) volcano (New Zealand): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 10 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.00 km depth at 3 km distance SW from the volcano.
Earthquake details:
2.2 quake 20 km east of Rotorua, Bay of Plenty, New Zealand, Oct 20, 2025 01:06 pm (Auckland time) (3 km SW)
All earthquakes at Okataina (Tarawera)

San Pablo volcano (Luzon Island): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 6 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 7 km distance NNW from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 12 km east of Calamba, Province of Laguna, Calabarzon, Philippines, Oct 20, 2025 11:32 am (GMT +8) (7 km NNW)
All earthquakes at San Pablo

San Salvador volcano (El Salvador): magnitude 3.4 earthquake

A magnitude 3.4 earthquake occurred at the volcano 19 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 9 km distance WNW from the volcano.
Earthquake details:
3.4 quake Departamento de La Libertad, 27 km northwest of San Salvador, El Salvador, Oct 19, 2025 09:01 am (El Salvador time) (9 km WNW)
All earthquakes at San Salvador

Talang volcano (Sumatra): 2 earthquakes up to magnitude 2.4

2 earthquakes occurred near (under) the volcano during 6 hours, the last being recorded quake 12 hours ago. Hypocenter depths ranged between 10.00 and 10.00 km.
Earthquake details:
2.4 quake Kabupaten Solok, 34 km east of Padang, Indonesia, Oct 20, 2025 05:17 am (Jakarta time) (5 km SW)
2.3 quake Kabupaten Solok, 36 km east of Padang, Indonesia, Oct 19, 2025 10:59 pm (Jakarta time) (4 km SSW)
All earthquakes at Talang

Tambora volcano (Sumbawa): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 6 hours ago. The quake, which might be volcanic in origin, was located at a depth of 38.00 km depth at 19 km distance W from the volcano.
Earthquake details:
2.1 quake Kabupaten Dompu, 53 km northeast of Sumbawa Besar, Indonesia, Oct 20, 2025 12:18 pm (Makassar time) (19 km W)
All earthquakes at Tambora

To-shima volcano (Izu Islands): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 7 hours ago. The quake, which might be volcanic in origin, was located at a depth of 12.20 km depth at 12 km distance E from the volcano.
Earthquake details:
2.1 quake North Pacific Ocean, Tokyo, 47 km east of Shimoda, Shizuoka, Japan, Oct 20, 2025 11:29 am (GMT +9) (12 km E)
All earthquakes at To-shima

Unnamed 24.00°N/121.83°E volcano (Taiwan): magnitude 4.2 earthquake

A magnitude 4.2 earthquake occurred at the volcano 20 hours ago. The quake, which might be volcanic in origin, was located at a depth of 42.70 km depth at 17 km distance NW from the volcano.
Earthquake details:
4.2 quake Philippine Sea, 15 km northeast of Hualien City, Taiwan, Oct 19, 2025 09:33 pm (Taipei time) (17 km NW)
All earthquakes at Unnamed 24.00°N/121.83°E

Volcán Azul volcano (Nicaragua): 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 6 km distance NE from the volcano.
Earthquake details:
Unconfirmed earthquake or seismic-like event: Saint Andrew, 2.5 km northwest of Kingston, Kingston, Jamaica, Oct 19, 2025 02:07 pm (GMT -5) (6 km NE)
All earthquakes at Volcán Azul
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/284129/Volcano-earthquake-report-for-Monday-20-Oct-2025.html