Volcano earthquake report for Wednesday, 19 Nov 2025

Quakes detected near: Akagi (3 quakes between mag 0.5-1.6), Akuseki-jima (1 quake mag 1.8), Barva (1 quake mag 1.7), Campi Flegrei (Phlegrean Fields) (16 quakes between mag 0.1-1.8), Clear Lake (16 quakes between mag 0.6-1.2), Coso (2 quakes between mag 0.9-1.1)
Daisen (3 quakes between mag 0.3-1.2), El Chichón (2 quakes between mag 1.9-2.1), El Hierro (1 quake mag 1.9), Eldey (112 quakes between mag 0.2-2.3), Erciyes Dagi (2 quakes between mag 1.2-1.6), Etna (1 quake mag 1.3), Fagradalsfjall (2 quakes between mag 0.7-1.1), Fernandina (1 quake mag 3.1), Hakone (1 quake mag 2.1), Hiuchi (7 quakes between mag 0.2-1.0), Hrómundartindur (8 quakes between mag 0.4-1.1), Kilauea (3 quakes between mag 1.7-1.8), Kolumbo (3 quakes between mag 1.5-2.0), Ljósufjöll (4 quakes between mag 0.4-2.6), Loihi (1 quake mag 1.7), Loki-Fögrufjöll volcano (3 quakes between mag 0.6-1.7), Mammoth Mountain (1 quake mag 1.2), Mauna Kea (1 quake mag 1.9), Maunaloa (1 quake mag 1.4), Mount St. Helens (5 quakes between mag 0.2-1.2), Nii-jima (1 quake mag 1.7), Niigata-Yake-yama (1 quake mag 3.0), Okmok (1 quake mag 1.0), Prestahnukur (1 quake mag 1.4), Santorini (1 quake mag 1.3), Shishaldin (2 quakes between mag 0.9-1.3), Taupo (1 quake mag 2.2), Tenerife (1 quake mag 1.2), Terceira (1 quake mag 2.2), Tjörnes Fracture Zone (1 quake mag 1.1), Towada (1 quake mag 1.7), Veniaminof (2 quakes between mag 0.2-1.3), Washiba-Kumonotaira (5 quakes between mag 0.2-2.1) (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:

Campi Flegrei (Phlegrean Fields) volcano (Italy): 16 earthquakes up to magnitude 1.8

Possible earthquake swarm: 16 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 3.43 and 0.21 km.
Earthquake details: (only 5 largest)
1.8 quake 3.4 km west of Fuorigrotta, Napoli, Campania, Italy, Nov 18, 2025 06:05 am (GMT +1) (2 km E)
1.1 quake 4.1 km southeast of Pozzuoli, Napoli, Campania, Italy, Nov 18, 2025 07:00 am (GMT +1) (0 km SW)
1.1 quake 12 km west of Naples, Napoli, Campania, Italy, Nov 18, 2025 11:53 am (GMT +1) (1 km NW)
1.0 quake 3.8 km west of Fuorigrotta, Napoli, Campania, Italy, Nov 18, 2025 06:10 am (GMT +1) (1 km E)
0.8 quake 4.6 km southeast of Pozzuoli, Napoli, Campania, Italy, Nov 18, 2025 07:08 am (GMT +1) (1 km S)
All earthquakes at Campi Flegrei (Phlegrean Fields)

Clear Lake volcano (California): 16 earthquakes up to magnitude 1.2

Possible earthquake swarm: 16 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 3.85 and 0.70 km.
Earthquake details: (only 5 largest)
1.2 quake Lake County, 28 mi north of Santa Rosa, Sonoma County, California, United States, Nov 17, 2025 07:37 pm (GMT -8) (15 km S)
1.0 quake Lake County, 25 mi north of Santa Rosa, Sonoma County, California, United States, Nov 18, 2025 03:45 pm (GMT -8) (19 km S)
1.0 quake 25 mi north of Santa Rosa, Sonoma County, California, United States, Nov 18, 2025 07:42 am (GMT -8) (19 km S)
1.0 quake 26 mi north of Santa Rosa, Sonoma County, California, United States, Nov 18, 2025 05:15 am (GMT -8) (18 km SSW)
1.0 quake 26 mi north of Santa Rosa, Sonoma County, California, United States, Nov 18, 2025 03:28 am (GMT -8) (17 km S)
All earthquakes at Clear Lake

El Chichón volcano (Southern Mexico): 2 earthquakes up to magnitude 2.1

2 earthquakes occurred near (under) the volcano during 1 hour 31 minutes, the last being recorded quake 15 hours ago. Hypocenter depths ranged between 5.40 and 4.20 km.
Earthquake details:
2.1 quake Estado de Chiapas, 36 km southwest of Teapa, Estado de Tabasco, Mexico, Nov 18, 2025 03:09 am (GMT -6) (1 km SSE)
1.9 quake Estado de Chiapas, 37 km southwest of Teapa, Estado de Tabasco, Mexico, Nov 18, 2025 04:39 am (GMT -6) (1 km SSW)
All earthquakes at El Chichón

Eldey volcano (Iceland): 112 earthquakes up to magnitude 2.3

Possible earthquake swarm: 112 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 22 minutes ago. Hypocenter depths ranged between 12.40 and 1.10 km.
Earthquake details: (only 5 largest)
2.3 quake Iceland: 5.8 km NE of Eldey Nov 19, 2025 12:33 am (Reykjavik time) (8 km NE)
2.2 quake Iceland: 6.3 km NE of Eldey Nov 19, 2025 12:16 am (Reykjavik time) (8 km NE)
2.2 quake Iceland: 7.3 km W of Reykjanestá Nov 18, 2025 11:51 pm (Reykjavik time) (11 km NE)
2.1 quake Iceland: 6.9 km NE of Eldey Nov 18, 2025 11:34 pm (Reykjavik time) (9 km NE)
2.0 quake Iceland: 7.2 km W of Reykjanestá Nov 18, 2025 11:14 pm (Reykjavik time) (10 km NE)
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.

Fernandina volcano (Galapagos Islands): magnitude 3.1 earthquake

A magnitude 3.1 earthquake occurred at the volcano 12 hours ago. The quake, which might be volcanic in origin, was located at a depth of 1.00 km depth at 4 km distance NNE from the volcano.
Earthquake details:
3.1 quake 93 km northwest of Puerto Villamil, Provincia de Galapagos, Ecuador, Nov 18, 2025 07:52 am (GMT -6) (4 km NNE)
All earthquakes at Fernandina

Hakone volcano (Honshu): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 15 hours ago. The quake, which might be volcanic in origin, was located at a depth of 8.80 km depth at 17 km distance NNE from the volcano.
Earthquake details:
2.1 quake 13 km west of Hadano, Kanagawa, Japan, Nov 18, 2025 08:18 pm (GMT +9) (17 km NNE)
All earthquakes at Hakone

Ljósufjöll volcano (Iceland): 4 earthquakes up to magnitude 2.6

4 earthquakes occurred near (under) the volcano during 17 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 18.10 and 13.10 km.
Earthquake details:
2.6 quake 27.5 km N of Borgarnes Nov 18, 2025 04:31 am (Universal Time) (16 km ESE)
1.1 quake Iceland: 27.9 km N of Borgarnes Nov 18, 2025 08:59 pm (Reykjavik time) (18 km ESE)
0.8 quake Iceland: 27.7 km N of Borgarnes Nov 18, 2025 03:38 am (Reykjavik time) (15 km ESE)
0.4 quake Iceland: 28.2 km N of Borgarnes Nov 18, 2025 03:40 am (Reykjavik time) (15 km ESE)
All earthquakes at Ljósufjöll

Niigata-Yake-yama volcano (Honshu): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 10 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 12 km distance NNW from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 25 km southwest of Joetsu, Niigata, Japan, Nov 19, 2025 12:59 am (GMT +9) (12 km NNW)
All earthquakes at Niigata-Yake-yama

Taupo volcano (New Zealand): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 5 hours ago. The quake, which might be volcanic in origin, was located at a depth of 6.30 km depth at 19 km distance NNE from the volcano.
Earthquake details:
2.2 quake 2.1 km north of Taupo, Waikato, New Zealand, Nov 19, 2025 09:41 am (GMT +13) (19 km NNE)
All earthquakes at Taupo

Terceira volcano (Azores): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 20 hours ago. The quake, which might be volcanic in origin, was located at a depth of 3.30 km depth at 3 km distance ENE from the volcano.
Earthquake details:
2.2 quake 12 km northwest of Angra do Heroismo, Azores, Portugal, Nov 18, 2025 04:27 am (GMT -1) (3 km ENE)
All earthquakes at Terceira

Unnamed 24.00°N/121.83°E volcano (Taiwan): magnitude 3.9 earthquake

A magnitude 3.9 earthquake occurred at the volcano 49 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 5.50 km depth at 13 km distance NNW from the volcano.
Earthquake details:
3.9 quake Philippine Sea, 25 km northeast of Hualien City, Taiwan, Nov 19, 2025 09:01 am (GMT +8) (13 km NNW)
All earthquakes at Unnamed 24.00°N/121.83°E

Unnamed 52.92°N/158.52°E volcano (Southern Kamchatka): 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 17 km distance NNE from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 1.9 km southeast of Petropavlovsk-Kamchatskiy, Kamchatka, Russia, Nov 19, 2025 02:30 am (GMT +12) (17 km NNE)
All earthquakes at Unnamed 52.92°N/158.52°E

Washiba-Kumonotaira volcano (Honshu): 5 earthquakes up to magnitude 2.1

5 earthquakes occurred near (under) the volcano during 1 hour 38 minutes, the last being recorded quake 21 hours ago. Hypocenter depths ranged between 4.70 and 2.30 km.
Earthquake details:
2.1 quake Gifu, 34 km northwest of Matsumoto, Nagano, Japan, Nov 18, 2025 12:56 pm (GMT +9) (7 km SSE)
0.7 quake 33 km northwest of Matsumoto, Nagano, Japan, Nov 18, 2025 01:04 pm (GMT +9) (6 km SSE)
0.6 quake 34 km northwest of Matsumoto, Nagano, Japan, Nov 18, 2025 02:15 pm (GMT +9) (6 km SSE)
0.3 quake 34 km northwest of Matsumoto, Nagano, Japan, Nov 18, 2025 12:37 pm (GMT +9) (6 km SSE)
0.2 quake 34 km northwest of Matsumoto, Nagano, Japan, Nov 18, 2025 01:14 pm (GMT +9) (6 km SSE)
All earthquakes at Washiba-Kumonotaira
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/287241/Volcano-earthquake-report-for-Wednesday-19-Nov-2025.html