Volcano earthquake report for Thursday, 18 Sep 2025

Quakes detected near: Abu (1 quake mag 1.0), Akuseki-jima (1 quake mag 2.0), Bardarbunga (2 quakes between mag 0.6-1.2), Clear Lake (19 quakes between mag 0.2-1.6), Coatepeque (1 quake mag 2.7), Coso (2 quakes between mag 0.8-1.3)
El Chichón (6 quakes between mag 2.1-2.4), Eldey (4 quakes between mag 0.3-1.0), Etna (2 quakes between mag 1.7-1.9), Fuerteventura (1 quake mag 3.0), Hrómundartindur (2 quakes between mag 0.8-1.0), Karapinar (1 quake mag 1.7), Katla (9 quakes between mag 0.6-2.9), Katmai (1 quake mag 1.2), Kilauea (1 quake mag 1.8), Klyuchevskoy (1 quake mag 1.1), Kolumbo (3 quakes between mag 0.6-2.5), Komaga-take (1 quake mag 1.0), Krísuvík (11 quakes between mag 0.1-1.3), Kuju (1 quake mag 1.6), Kurikoma (1 quake mag 1.3), Leonard Range (1 quake mag 1.5), Ljósufjöll (6 quakes between mag 0.7-2.1), Loki-Fögrufjöll volcano (2 quakes between mag 1.3-3.4), Nasu (1 quake mag 1.0), Nejapa-Miraflores (1 quake mag 1.9), Ngauruhoe (1 quake mag 1.0), Nikko-Shirane (1 quake mag 1.2), North Vate (1 quake mag 2.8), Okataina (Tarawera) (1 quake mag 2.4), Ontake-san (4 quakes between mag 0.2-1.9), Osore-yama (1 quake mag 1.2), Platanar (1 quake mag 2.0), Prestahnukur (1 quake mag 1.3), San Salvador (1 quake mag 3.0), Sarik-Gajah (1 quake mag 2.1), Suwanose-jima (28 quakes between mag 0.9-3.6), Tenerife (2 quakes between mag 0.6-1.2), Tjörnes Fracture Zone (5 quakes between mag 0.5-1.4), To-shima (7 quakes between mag 1.1-2.4), Tongariro (2 quakes between mag 1.4-1.7), Tor Zawar (1 quake mag 3.0) (updated 23h50)

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:

Clear Lake volcano (California): 19 earthquakes up to magnitude 1.6

Possible earthquake swarm: 19 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 9.39 and 0.87 km.
Earthquake details: (only 5 largest)
1.6 quake 12 mi southwest of Clearlake, Lake County, California, United States, Sep 18, 2025 11:49 am (GMT -7) (15 km S)
1.4 quake Lake County, 28 mi north of Santa Rosa, Sonoma County, California, United States, Sep 18, 2025 02:32 pm (GMT -7) (15 km S)
1.4 quake 25 mi north of Santa Rosa, Sonoma County, California, United States, Sep 18, 2025 04:54 am (GMT -7) (19 km S)
1.3 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Sep 18, 2025 12:26 am (GMT -7) (17 km SSW)
1.0 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Sep 17, 2025 08:37 pm (GMT -7) (18 km SSW)
All earthquakes at Clear Lake

Coatepeque volcano (El Salvador): magnitude 2.7 earthquake

A magnitude 2.7 earthquake occurred at the volcano 8 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 14 km distance SE from the volcano.
Earthquake details:
2.7 quake Departamento de La Libertad, 31 km west of San Salvador, El Salvador, Sep 18, 2025 09:51 am (GMT -6) (14 km SE)
All earthquakes at Coatepeque

El Chichón volcano (Southern Mexico): 6 earthquakes up to magnitude 2.4

6 earthquakes occurred near (under) the volcano during 10 hours, the last being recorded quake 13 hours ago. Hypocenter depths ranged between 5.00 and 3.00 km.
Earthquake details: (only 5 largest)
2.4 quake Estado de Chiapas, 36 km southwest of Teapa, Estado de Tabasco, Mexico, Sep 17, 2025 07:07 pm (GMT -6) (0 km S)
2.4 quake Estado de Chiapas, 37 km southwest of Teapa, Estado de Tabasco, Mexico, Sep 18, 2025 01:45 am (GMT -6) (1 km SSW)
2.4 quake Estado de Chiapas, 37 km southwest of Teapa, Estado de Tabasco, Mexico, Sep 18, 2025 04:59 am (GMT -6) (1 km S)
2.3 quake Estado de Chiapas, 35 km southwest of Teapa, Estado de Tabasco, Mexico, Sep 17, 2025 09:23 pm (GMT -6) (1 km E)
2.3 quake Estado de Chiapas, 37 km southwest of Teapa, Estado de Tabasco, Mexico, Sep 18, 2025 01:19 am (GMT -6) (1 km SSW)
All earthquakes at El Chichón

Fuerteventura volcano (Canary 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 10.00 km depth at 15 km distance ENE from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 11 km south of Puerto del Rosario, Las Palmas, Canary Islands, Spain, Sep 18, 2025 02:30 am (GMT +0) (15 km ENE)
All earthquakes at Fuerteventura

Katla volcano (Iceland): 9 earthquakes up to magnitude 2.9

9 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 1 hour 15 minutes ago. Hypocenter depths ranged between 1.10 and 0.10 km.
Earthquake details: (only 5 largest)
2.9 quake South, 144 km east of Reykjavik, Capital Region, Iceland, Sep 18, 2025 10:34 pm (Reykjavik time) (6 km W)
2.2 quake 7.5 km NNE of Hábunga Sep 18, 2025 01:39 am (Universal Time) (2 km NNW)
1.3 quake Iceland: 8.0 km ENE of Goðabunga Sep 18, 2025 02:07 am (Reykjavik time) (3 km NW)
1.1 quake Iceland: 2.5 km ESE of Goðabunga Sep 18, 2025 10:35 pm (Reykjavik time) (7 km W)
1.1 quake Iceland: 7.8 km N of Hábunga Sep 18, 2025 01:39 am (Reykjavik time) (2 km NNW)
All earthquakes at Katla

Kolumbo volcano (Greece): 3 earthquakes up to magnitude 2.5

3 earthquakes occurred near (under) the volcano during 11 hours, the last being recorded quake 13 hours ago. Hypocenter depths ranged between 8.90 and 4.80 km.
Earthquake details:
2.5 quake Aegean Sea, 28 km northeast of Santorini Island, Greece, Sep 18, 2025 01:50 pm (GMT +3) (18 km ENE)
2.3 quake Aegean Sea, 29 km northeast of Santorini Island, Greece, Sep 18, 2025 02:56 am (GMT +3) (18 km NE)
0.6 quake Aegean Sea, 6.3 km east of Santorini Island, Greece, Sep 18, 2025 06:23 am (GMT +3) (11 km SSE)
All earthquakes at Kolumbo

Krísuvík volcano (Reykjanes Peninsula, Iceland): 11 earthquakes up to magnitude 1.3

Possible earthquake swarm: 11 earthquakes occurred near (under) the volcano during 14 hours, the last being recorded quake 9 hours ago. Hypocenter depths ranged between 6.50 and 2.80 km.
Earthquake details: (only 5 largest)
1.3 quake Iceland: 2.9 km N of Krýsuvík Sep 18, 2025 03:05 pm (Reykjavik time) (2 km SE)
0.8 quake Iceland: 2.5 km NNE of Krýsuvík Sep 18, 2025 12:26 pm (Reykjavik time) (4 km SE)
0.8 quake Iceland: 3.9 km NNE of Krýsuvík Sep 18, 2025 12:28 pm (Reykjavik time) (4 km ESE)
0.8 quake Iceland: 4.6 km NNE of Krýsuvík Sep 18, 2025 12:41 pm (Reykjavik time) (4 km ESE)
0.6 quake Iceland: 4.0 km NE of Krýsuvík Sep 18, 2025 01:29 pm (Reykjavik time) (4 km ESE)
All earthquakes at Krísuvík

Ljósufjöll volcano (Iceland): 6 earthquakes up to magnitude 2.1

6 earthquakes occurred near (under) the volcano during 11 hours, the last being recorded quake 11 hours ago. Hypocenter depths ranged between 19.10 and 6.20 km.
Earthquake details: (only 5 largest)
2.1 quake 26.2 km N of Borgarnes Sep 18, 2025 01:01 am (Universal Time) (17 km ESE)
1.9 quake Iceland: 36.0 km N of Borgarnes Sep 18, 2025 10:55 am (Reykjavik time) (13 km E)
1.6 quake 26.1 km N of Borgarnes Sep 18, 2025 04:05 am (Universal Time) (17 km ESE)
1.4 quake 25.5 km N of Borgarnes Sep 18, 2025 08:33 am (Universal Time) (18 km ESE)
0.8 quake Iceland: 29.1 km N of Borgarnes Sep 18, 2025 10:55 am (Reykjavik time) (15 km ESE)
All earthquakes at Ljósufjöll

Loki-Fögrufjöll volcano volcano (Iceland): 2 earthquakes up to magnitude 3.4

2 earthquakes occurred near (under) the volcano during 5 minutes, the last being recorded quake 24 hours ago. Hypocenter depths ranged between 1.10 and 0.40 km.
Earthquake details:
3.4 quake South, 212 km east of Reykjavik, Capital Region, Iceland, Sep 18, 2025 12:04 am (Universal Time) (10 km ENE)
1.3 quake 10.6 km E of Hamarinn Sep 18, 2025 12:09 am (Universal Time) (10 km ENE)
All earthquakes at Loki-Fögrufjöll volcano

North Vate volcano (Vanuatu): magnitude 2.8 earthquake

A magnitude 2.8 earthquake occurred at the volcano 12 hours ago. The quake, which might be volcanic in origin, was located at a depth of 0 km depth at 6 km distance NNW from the volcano.
Earthquake details:
2.8 quake 35 km north of Port Vila, Shefa Province, Vanuatu, Sep 18, 2025 11:07 pm (GMT +11) (6 km NNW)
All earthquakes at North Vate

Okataina (Tarawera) volcano (New Zealand): magnitude 2.4 earthquake

A magnitude 2.4 earthquake occurred at the volcano 5 hours ago. The quake, which might be volcanic in origin, was located at a depth of 4.20 km depth at 4 km distance WSW from the volcano.
Earthquake details:
2.4 quake 19 km east of Rotorua, Bay of Plenty, New Zealand, Sep 19, 2025 06:57 am (GMT +12) (4 km WSW)
All earthquakes at Okataina (Tarawera)

San Salvador volcano (El Salvador): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 4 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 14 km distance E from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 5.6 km northeast of San Salvador, Departamento de San Salvador, El Salvador, Sep 18, 2025 01:45 pm (GMT -6) (14 km E)
All earthquakes at San Salvador

Sarik-Gajah volcano (Sumatra): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 23 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 9 km distance WSW from the volcano.
Earthquake details:
2.1 quake Kabupaten Pasaman, 48 km northwest of Bukittinggi, Indonesia, Sep 18, 2025 08:12 am (GMT +7) (9 km WSW)
All earthquakes at Sarik-Gajah

Suwanose-jima volcano (Ryukyu Islands): 28 earthquakes up to magnitude 3.6

Possible earthquake swarm: 28 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 31 minutes ago. Hypocenter depths ranged between 14.80 and 0.00 km.
Earthquake details: (only 5 largest)
3.6 quake 143 km north of Naze, Kagoshima-ken, Japan, Sep 19, 2025 08:07 am (GMT +9) (18 km ESE)
3.5 quake East China Sea, Kagoshima-ken, 8.8 km southeast of Suwanose-jima Island, Japan, Sep 19, 2025 08:11 am (GMT +9) (9 km ESE)
3.1 quake East China Sea, Kagoshima-ken, 8.8 km southeast of Suwanose-jima Island, Japan, Sep 19, 2025 01:46 am (GMT +9) (9 km ESE)
3.1 quake East China Sea, Kagoshima-ken, 12 km southeast of Suwanose-jima Island, Japan, Sep 19, 2025 01:45 am (GMT +9) (12 km ESE)
2.5 quake East China Sea, Kagoshima-ken, 5.5 km northwest of Suwanose-jima Island, Japan, Sep 19, 2025 06:20 am (GMT +9) (5 km NW)
All earthquakes at Suwanose-jima

To-shima volcano (Izu Islands): 7 earthquakes up to magnitude 2.4

7 earthquakes occurred near (under) the volcano during 6 hours, the last being recorded quake 15 hours ago. Hypocenter depths ranged between 14.00 and 8.40 km.
Earthquake details: (only 5 largest)
2.4 quake North Pacific Ocean, Tokyo, 44 km southeast of Shimoda, Shizuoka, Japan, Sep 18, 2025 05:59 pm (GMT +9) (9 km E)
2.4 quake North Pacific Ocean, Tokyo, 45 km east of Shimoda, Shizuoka, Japan, Sep 18, 2025 12:31 pm (GMT +9) (14 km ENE)
1.6 quake North Pacific Ocean, Tokyo, 43 km east of Shimoda, Shizuoka, Japan, Sep 18, 2025 12:30 pm (GMT +9) (13 km ENE)
1.5 quake North Pacific Ocean, Tokyo, 42 km southeast of Shimoda, Shizuoka, Japan, Sep 18, 2025 04:33 pm (GMT +9) (7 km E)
1.3 quake North Pacific Ocean, 47 km northeast of Kozu Shima Island, Tokyo, Japan, Sep 18, 2025 06:17 pm (GMT +9) (17 km E)
All earthquakes at To-shima

Tor Zawar volcano (Pakistan): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 2 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 1 km distance SSE from the volcano.
Earthquake details:
Reported quake or seismic-like event: 41 km southeast of Indi, Bijapur, State of Karnataka, India, Sep 19, 2025 03:01 am (GMT +5:30) (1 km SSE)
All earthquakes at Tor Zawar

Unnamed 52.92°N/158.52°E volcano (Southern Kamchatka): 2 earthquakes up to magnitude 3.0

2 earthquakes occurred near (under) the volcano during 3 hours, the last being recorded quake 15 hours ago. Hypocenter depths ranged between 10.00 and 10.00 km.
Earthquake details:
Reported seismic-like event (likely no quake): 2.5 km southeast of Petropavlovsk-Kamchatskiy, Kamchatka, Russia, Sep 18, 2025 08:26 pm (GMT +12) (16 km NNE)
Reported seismic-like event (likely no quake): 3.6 km west of Petropavlovsk-Kamchatskiy, Kamchatka, Russia, Sep 18, 2025 05:54 pm (GMT +12) (17 km NNE)
All earthquakes at Unnamed 52.92°N/158.52°E
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