Volcano earthquake report for Saturday, 1 Nov 2025
World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 1 Nov 2025 Number in brackets indicate nr of quakes.

Quakes detected near: Apaneca Range (1 quake mag 2.0), Campi Flegrei (Phlegrean Fields) (22 quakes between mag 0.1-1.2), Clear Lake (28 quakes between mag 0.2-1.9), Coso (2 quakes between mag 1.0-1.0), El Chichón (30 quakes between mag 1.2-3.0), El Hierro (1 quake mag 1.5)
Esjufjöll (2 quakes between mag 0.8-1.2), Etna (2 quakes between mag 1.3-1.4), Eyafjallajökull (1 quake mag 1.4), Gran Canaria (3 quakes between mag 0.6-3.0), Iriomote-jima (1 quake mag 1.0), Katla (5 quakes between mag 0.5-2.0), Kawah Karaha (1 quake mag 3.0), Kolumbo (7 quakes between mag 0.8-1.4), Krafla (4 quakes between mag 0.8-1.2), Krísuvík (16 quakes between mag 0.1-1.9), Kuju (88 quakes between mag 0.3-2.7), La Palma (1 quake mag 1.0), Ljósufjöll (2 quakes between mag 1.8-2.0), Loki-Fögrufjöll volcano (2 quakes between mag 1.6-1.7), Methana (1 quake mag 1.6), Milos (1 quake mag 2.8), Nantai (6 quakes between mag 0.6-1.4), Nikko-Shirane (7 quakes between mag 0.4-1.5), Nisyros (2 quakes between mag 2.4-3.4), Ontake-san (7 quakes between mag 0.1-1.2), Oshima (1 quake mag 1.4), Osore-yama (1 quake mag 1.2), Papandayan (1 quake mag 2.0), Salton Buttes (2 quakes between mag 1.1-1.7), Santorini (2 quakes between mag 0.7-1.2), Sarik-Gajah (3 quakes between mag 2.2-3.3), Tenorio (1 quake mag 1.9), Terceira (2 quakes between mag 2.0-2.1), Whale Island (1 quake mag 2.7) (updated 16h50)

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:



Campi Flegrei (Phlegrean Fields) volcano (Italy): 22 earthquakes up to magnitude 1.2

Possible earthquake swarm: 22 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 5.25 and 0.02 km.
Earthquake details: (only 5 largest)
1.2 quake 1.8 km southwest of Pozzuoli, Napoli, Campania, Italy, Oct 31, 2025 10:04 pm (Rome time) (5 km W)
1.1 quake 1.8 km southwest of Pozzuoli, Napoli, Campania, Italy, Oct 31, 2025 07:23 pm (GMT +1) (5 km W)
1.1 quake Tyrrhenian Sea, 20 km northeast of Isola d'Ischia Island, Italy, Oct 31, 2025 09:10 pm (Rome time) (2 km SW)
1.1 quake 2.1 km west of Fuorigrotta, Napoli, Campania, Italy, Nov 1, 2025 06:09 am (GMT +1) (3 km E)
1.0 quake Tyrrhenian Sea, 20 km northeast of Isola d'Ischia Island, Italy, Oct 31, 2025 09:18 pm (Rome time) (3 km SW)
All earthquakes at Campi Flegrei (Phlegrean Fields)

Clear Lake volcano (California): 28 earthquakes up to magnitude 1.9

Possible earthquake swarm: 28 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 23 minutes ago. Hypocenter depths ranged between 4.30 and 0.88 km.
Earthquake details: (only 5 largest)
1.9 quake Sonoma County, 14 mi southwest of Clearlake, Lake County, California, United States, Nov 1, 2025 01:27 am (GMT -7) (17 km SSW)
1.7 quake 13 mi southwest of Clearlake, Lake County, California, United States, Oct 31, 2025 10:58 am (GMT -7) (19 km S)
1.6 quake Sonoma County, 14 mi southwest of Clearlake, Lake County, California, United States, Nov 1, 2025 01:27 am (GMT -7) (17 km SSW)
1.2 quake Lake County, 25 mi north of Santa Rosa, Sonoma County, California, United States, Oct 31, 2025 12:06 pm (GMT -7) (19 km S)
1.1 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Nov 1, 2025 01:30 am (GMT -7) (17 km SSW)
All earthquakes at Clear Lake

El Chichón volcano (Southern Mexico): 30 earthquakes up to magnitude 3.0

Possible earthquake swarm: 30 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 5.20 and 1.90 km.
Earthquake details: (only 5 largest)
3.0 quake Estado de Chiapas, 37 km southwest of Teapa, Estado de Tabasco, Mexico, Oct 31, 2025 02:39 pm (Merida time) (1 km WSW)
3.0 quake Estado de Chiapas, 37 km southwest of Teapa, Estado de Tabasco, Mexico, Nov 1, 2025 04:45 am (Merida time) (1 km WSW)
2.9 quake Estado de Chiapas, 37 km southwest of Teapa, Estado de Tabasco, Mexico, Oct 31, 2025 04:58 pm (Merida time) (2 km S)
2.7 quake Estado de Chiapas, 35 km southwest of Teapa, Estado de Tabasco, Mexico, Oct 31, 2025 02:55 pm (Merida time) (1 km N)
2.5 quake Estado de Chiapas, 35 km southwest of Teapa, Estado de Tabasco, Mexico, Oct 31, 2025 07:05 pm (Merida time) (2 km E)
All earthquakes at El Chichón

Gran Canaria volcano (Canary Islands): 3 earthquakes up to magnitude 3.0

3 earthquakes occurred near (under) the volcano during 14 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 10.00 and 2.00 km.
Earthquake details:
Reported seismic-like event (likely no quake): 27 km west of Las Palmas de Gran Canaria, Las Palmas, Canary Islands, Spain, Oct 31, 2025 09:53 pm (GMT +0) (10 km NW)
1.1 quake 8.8 km south of Galdar, Las Palmas, Canary Islands, Spain, Nov 1, 2025 12:16 pm (Universal Time) (7 km WNW)
0.6 quake 9.2 km south of Galdar, Las Palmas, Canary Islands, Spain, Oct 31, 2025 11:00 pm (Universal Time) (7 km WNW)
All earthquakes at Gran Canaria

Kawah Karaha volcano (West Java): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 11 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 12 km distance E from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 23 km north of Tasikmalaya, Kota Tasikmalaya, Jawa Barat, Indonesia, Nov 1, 2025 12:27 pm (GMT +7) (12 km E)
All earthquakes at Kawah Karaha

Krísuvík volcano (Reykjanes Peninsula, Iceland): 16 earthquakes up to magnitude 1.9

Possible earthquake swarm: 16 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 7.60 and 3.30 km.
Earthquake details: (only 5 largest)
1.9 quake 2.8 km N of Krýsuvík Nov 1, 2025 10:11 am (Universal Time) (3 km SE)
1.6 quake 6.2 km NE of Krýsuvík Oct 31, 2025 10:33 pm (Universal Time) (6 km E)
1.5 quake 6.1 km NE of Krýsuvík Oct 31, 2025 10:19 pm (Universal Time) (5 km E)
1.1 quake Iceland: 2.8 km NNE of Krýsuvík Nov 1, 2025 10:18 am (Reykjavik time) (3 km SE)
1.1 quake Iceland: 6.0 km NE of Krýsuvík Oct 31, 2025 11:06 pm (Reykjavik time) (6 km E)
All earthquakes at Krísuvík

Kuju volcano (Kyushu): 88 earthquakes up to magnitude 2.7

Possible earthquake swarm: 88 earthquakes occurred near (under) the volcano during 10 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 15.90 and 6.10 km.
Earthquake details: (only 5 largest)
2.7 quake 45 km west of Oita, Oita Prefecture, Japan, Nov 1, 2025 11:17 am (GMT +9) (5 km W)
2.6 quake 41 km west of Oita, Oita Prefecture, Japan, Nov 1, 2025 04:48 pm (GMT +9) (8 km NW)
2.5 quake 41 km west of Oita, Oita Prefecture, Japan, Nov 1, 2025 04:48 pm (GMT +9) (7 km WNW)
2.3 quake 41 km west of Oita, Oita Prefecture, Japan, Nov 1, 2025 11:45 am (GMT +9) (7 km WNW)
2.2 quake 41 km west of Oita, Oita Prefecture, Japan, Nov 1, 2025 04:55 pm (GMT +9) (8 km WNW)
All earthquakes at Kuju

Milos volcano (Greece): magnitude 2.8 earthquake

A magnitude 2.8 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 12 km distance NW from the volcano.
Earthquake details:
2.8 quake 7.4 km west of Adamantas, Nomos Kykladon, South Aegean, Greece, Oct 31, 2025 11:33 pm (Athens time) (12 km NW)
All earthquakes at Milos

Nisyros volcano (Greece): 2 earthquakes up to magnitude 3.4

2 earthquakes occurred near (under) the volcano during 89 seconds, the last being recorded quake 7 hours ago. Hypocenter depths ranged between 13.90 and 12.40 km.
Earthquake details:
3.4 quake Aegean Sea, 16 km south of Nisi Nisyros Island, Dodecanese, South Aegean, Greece, Nov 1, 2025 11:53 am (Athens time) (15 km S)
2.4 quake Aegean Sea, 17 km west of Nisi Tilos Island, Dodecanese, South Aegean, Greece, Nov 1, 2025 11:52 am (Athens time) (15 km S)
All earthquakes at Nisyros

Sarik-Gajah volcano (Sumatra): 3 earthquakes up to magnitude 3.3

3 earthquakes occurred near (under) the volcano during 42 minutes, the last being recorded quake 15 hours ago. Hypocenter depths ranged between 10.00 and 10.00 km.
Earthquake details:
3.3 quake Kabupaten Pasaman, 33 km northwest of Bukittinggi, Indonesia, Nov 1, 2025 08:28 am (Jakarta time) (17 km S)
2.3 quake Kabupaten Pasaman, 38 km northwest of Bukittinggi, Indonesia, Nov 1, 2025 09:10 am (Jakarta time) (11 km S)
2.2 quake Kabupaten Pasaman, 37 km northwest of Bukittinggi, Indonesia, Nov 1, 2025 08:57 am (Jakarta time) (13 km S)
All earthquakes at Sarik-Gajah

Terceira volcano (Azores): 2 earthquakes up to magnitude 2.1

2 earthquakes occurred near (under) the volcano during 11 hours, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 1.10 and 0.00 km.
Earthquake details:
2.1 quake 13 km northwest of Angra do Heroismo, Azores, Portugal, Oct 31, 2025 10:56 pm (Azores time) (2 km NE)
2.0 quake 15 km northwest of Angra do Heroismo, Azores, Portugal, Nov 1, 2025 10:04 am (GMT -1) (3 km W)
All earthquakes at Terceira

Whale Island volcano (New Zealand): magnitude 2.7 earthquake

A magnitude 2.7 earthquake occurred at the volcano 9 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.00 km depth at 6 km distance ENE from the volcano.
Earthquake details:
2.7 quake South Pacific Ocean, 15 km north of Whakatane, Bay of Plenty, New Zealand, Nov 1, 2025 08:54 pm (Auckland time) (6 km ENE)
All earthquakes at Whale Island
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/285719/Volcano-earthquake-report-for-Saturday-1-Nov-2025.html