Volcano earthquake report for Tuesday, 9 Sep 2025

Quakes detected near: Agung (1 quake mag 2.6), Akuseki-jima (2 quakes between mag 1.5-2.0), Brennisteinsfjöll (1 quake mag 2.9), Campi Flegrei (Phlegrean Fields) (6 quakes between mag 0.1-1.2), Canlaon (1 quake mag 1.9), Cerro Singüil (2 quakes between mag 2.4-3.0)
Clear Lake (18 quakes between mag 0.2-1.8), Coso (7 quakes between mag 0.3-2.1), Cuilapa-Barbarena (2 quakes between mag 2.3-2.6), El Chichón (12 quakes between mag 2.1-2.9), Eldey (6 quakes between mag 0.8-1.6), Hulubelu (1 quake mag 2.7), Ijen (1 quake mag 2.8), Iwaki (1 quake mag 1.3), Izu-Tobu (8 quakes between mag 0.1-1.1), Katla (3 quakes between mag 1.2-2.4), Kilauea (3 quakes between mag 0.7-1.9), Kirishima (2 quakes between mag 0.1-1.2), Klyuchevskoy (1 quake mag 1.1), Kolumbo (2 quakes between mag 1.6-2.1), Koryaksky (1 quake mag 1.1), Krísuvík (24 quakes between mag 0.2-1.9), Ljósufjöll (13 quakes between mag 0.0-1.4), Loihi (1 quake mag 2.2), Mutnovsky (10 quakes between mag 0.5-1.1), Nipesotsu-Maruyama (2 quakes between mag 0.4-1.0), Oshima (35 quakes between mag 0.4-2.9), Pantelleria (1 quake mag 3.0), Pavlof Sister (1 quake mag 1.0), Piparo (1 quake mag 3.0), Reporoa (1 quake mag 1.4), Sakurajima (4 quakes between mag 0.2-1.1), Salton Buttes (1 quake mag 1.6), Santorini (1 quake mag 1.4), Shishaldin (3 quakes between mag 0.5-1.4), Suwanose-jima (1 quake mag 1.7), Svartsengi (3 quakes between mag 0.1-1.0), Taupo (1 quake mag 1.7), Terceira (2 quakes between mag 2.1-2.9), To-shima (1 quake mag 1.7), Udina (1 quake mag 1.6), Unzen (3 quakes between mag 0.5-1.2), Usulután (1 quake mag 2.3), Vatnafjöll (6 quakes between mag 0.4-3.2) (updated 11h50)

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:

Agung volcano (Bali): magnitude 2.6 earthquake

A magnitude 2.6 earthquake occurred at the volcano 24 hours ago. The quake, which might be volcanic in origin, was located at a depth of 12.00 km depth at 18 km distance NNE from the volcano.
Earthquake details:
2.6 quake Bali Sea, 28 km north of Amlapura, Indonesia, Sep 8, 2025 08:14 pm (GMT +8) (18 km NNE)
All earthquakes at Agung

Brennisteinsfjöll volcano (Reykjanes Peninsula, Iceland): magnitude 2.9 earthquake

A magnitude 2.9 earthquake occurred at the volcano 6 hours ago. The quake, which might be volcanic in origin, was located at a depth of 7.20 km depth at 5 km distance NE from the volcano.
Earthquake details:
2.9 quake Southern Peninsula, 21 km south of Reykjavik, Capital Region, Iceland, Sep 9, 2025 05:39 am (Reykjavik time) (5 km NE)
All earthquakes at Brennisteinsfjöll

Cerro Singüil volcano (El Salvador): 2 earthquakes up to magnitude 3.0

2 earthquakes occurred near (under) the volcano during 14 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 10.00 and 5.00 km.
Earthquake details:
Reported seismic-like event (likely no quake): 26 km south of Jutiapa, Departamento de Jutiapa, Guatemala, Sep 8, 2025 10:21 am (GMT -6) (18 km W)
2.4 quake 26 km south of Jutiapa, Departamento de Jutiapa, Guatemala, Sep 9, 2025 12:28 am (GMT -6) (18 km W)
All earthquakes at Cerro Singüil

Clear Lake volcano (California): 18 earthquakes up to magnitude 1.8

Possible earthquake swarm: 18 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 35 minutes ago. Hypocenter depths ranged between 14.50 and 0.80 km.
Earthquake details: (only 5 largest)
1.8 quake Sonoma County, 13 mi southwest of Clearlake, Lake County, California, United States, Sep 9, 2025 04:11 am (GMT -7) (15 km SSW)
1.5 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, Sep 9, 2025 12:58 am (GMT -7) (18 km SSW)
1.2 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, Sep 8, 2025 04:31 pm (GMT -7) (16 km SSW)
1.1 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Sep 8, 2025 10:29 am (GMT -7) (16 km SSW)
1.0 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Sep 8, 2025 06:06 pm (GMT -7) (17 km S)
All earthquakes at Clear Lake

Coso volcano (California): 7 earthquakes up to magnitude 2.1

7 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 3.93 and 2.62 km.
Earthquake details: (only 5 largest)
2.1 quake Inyo County, 19 mi north of Ridgecrest, Kern County, California, United States, Sep 8, 2025 08:51 pm (GMT -7) (19 km SE)
1.9 quake Inyo County, 19 mi north of Ridgecrest, Kern County, California, United States, Sep 9, 2025 12:07 am (GMT -7) (19 km SE)
1.5 quake Inyo County, 19 mi north of Ridgecrest, Kern County, California, United States, Sep 8, 2025 12:02 pm (GMT -7) (19 km SE)
1.1 quake 19 km E of Little Lake, CA, Sep 8, 2025 06:06 am (GMT -7) (17 km SE)
1.0 quake 21 km E of Little Lake, CA, Sep 8, 2025 12:12 pm (GMT -7) (19 km SE)
All earthquakes at Coso

Cuilapa-Barbarena volcano (Guatemala): 2 earthquakes up to magnitude 2.6

2 earthquakes occurred near (under) the volcano during 1 hour 4 minutes, the last being recorded quake 1 hour 55 minutes ago. Hypocenter depths ranged between 4.00 and 4.00 km.
Earthquake details:
2.6 quake Departamento de Santa Rosa, 31 km southeast of Guatemala City, Guatemala, Sep 9, 2025 02:50 am (GMT -6) (10 km NNE)
2.3 quake Departamento de Santa Rosa, 30 km southeast of Guatemala City, Guatemala, Sep 9, 2025 03:54 am (GMT -6) (11 km NNE)
All earthquakes at Cuilapa-Barbarena

El Chichón volcano (Southern Mexico): 12 earthquakes up to magnitude 2.9

Possible earthquake swarm: 12 earthquakes occurred near (under) the volcano during 8 hours, the last being recorded quake 16 hours ago. Hypocenter depths ranged between 4.50 and 2.00 km.
Earthquake details: (only 5 largest)
2.9 quake Estado de Chiapas, 37 km southwest of Teapa, Estado de Tabasco, Mexico, Sep 8, 2025 12:38 pm (GMT -6) (2 km SSE)
2.8 quake Estado de Chiapas, 35 km southwest of Teapa, Estado de Tabasco, Mexico, Sep 8, 2025 06:04 am (GMT -6) (1 km NE)
2.7 quake Estado de Chiapas, 37 km southwest of Teapa, Estado de Tabasco, Mexico, Sep 8, 2025 07:42 am (GMT -6) (0 km SW)
2.5 quake Estado de Chiapas, 37 km southwest of Teapa, Estado de Tabasco, Mexico, Sep 8, 2025 07:22 am (GMT -6) (1 km WSW)
2.5 quake Estado de Chiapas, 35 km southwest of Teapa, Estado de Tabasco, Mexico, Sep 8, 2025 10:42 am (GMT -6) (1 km E)
All earthquakes at El Chichón

Hulubelu volcano (Sumatra): magnitude 2.7 earthquake

A magnitude 2.7 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 4 km distance SE from the volcano.
Earthquake details:
2.7 quake Kabupaten Tanggamus, 73 km west of Bandar Lampung, Indonesia, Sep 9, 2025 08:23 am (GMT +7) (4 km SE)
All earthquakes at Hulubelu

Ijen volcano (East Java): magnitude 2.8 earthquake

A magnitude 2.8 earthquake occurred at the volcano 22 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 4 km distance NNE from the volcano.
Earthquake details:
2.8 quake 25 km northwest of Banyuwangi, Kabupaten Banyuwangi, Jawa Timur, Indonesia, Sep 8, 2025 08:26 pm (GMT +7) (4 km NNE)
All earthquakes at Ijen

Katla volcano (Iceland): 3 earthquakes up to magnitude 2.4

3 earthquakes occurred near (under) the volcano during 9 hours, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 0.10 and 0.10 km.
Earthquake details:
2.4 quake 8.3 km N of Hábunga Sep 9, 2025 12:13 am (Universal Time) (3 km NNW)
2.0 quake 7.4 km NNE of Hábunga Sep 9, 2025 06:03 am (Universal Time) (1 km NNW)
1.2 quake 7.3 km ENE of Goðabunga Sep 8, 2025 08:46 pm (Universal Time) (4 km NW)
All earthquakes at Katla

Kolumbo volcano (Greece): 2 earthquakes up to magnitude 2.1

2 earthquakes occurred near (under) the volcano during 8 hours, the last being recorded quake 12 hours ago. Hypocenter depths ranged between 10.80 and 5.00 km.
Earthquake details:
2.1 quake Aegean Sea, 23 km northeast of Santorini Island, Greece, Sep 8, 2025 06:28 pm (GMT +3) (12 km NE)
1.6 quake Aegean Sea, 21 km northeast of Santorini Island, Greece, Sep 9, 2025 02:53 am (GMT +3) (10 km NE)
All earthquakes at Kolumbo

Krísuvík volcano (Reykjanes Peninsula, Iceland): 24 earthquakes up to magnitude 1.9

Possible earthquake swarm: 24 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 7.80 and 3.20 km.
Earthquake details: (only 5 largest)
1.9 quake 3.1 km N of Krýsuvík Sep 8, 2025 07:02 pm (Universal Time) (2 km SE)
1.3 quake Iceland: 2.9 km N of Krýsuvík Sep 8, 2025 02:27 pm (Reykjavik time) (2 km SE)
1.0 quake 2.8 km N of Krýsuvík Sep 8, 2025 01:17 pm (Universal Time) (3 km SE)
0.7 quake Iceland: 4.0 km NNE of Krýsuvík Sep 8, 2025 04:15 pm (Reykjavik time) (3 km ESE)
0.7 quake Iceland: 4.9 km N of Krýsuvík Sep 8, 2025 01:46 pm (Reykjavik time) (2 km E)
All earthquakes at Krísuvík

Ljósufjöll volcano (Iceland): 13 earthquakes up to magnitude 1.4

Possible earthquake swarm: 13 earthquakes occurred near (under) the volcano during 16 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 21.20 and 5.00 km.
Earthquake details: (only 5 largest)
1.4 quake Iceland: 32.6 km N of Borgarnes Sep 8, 2025 05:13 pm (Reykjavik time) (11 km ESE)
1.3 quake Iceland: 34.9 km N of Borgarnes Sep 9, 2025 06:28 am (Reykjavik time) (11 km E)
1.2 quake Iceland: 34.7 km N of Borgarnes Sep 9, 2025 06:23 am (Reykjavik time) (11 km E)
1.2 quake 27.6 km N of Borgarnes Sep 9, 2025 01:18 am (Universal Time) (17 km ESE)
0.7 quake Iceland: 27.4 km N of Borgarnes Sep 9, 2025 06:28 am (Reykjavik time) (14 km SE)
All earthquakes at Ljósufjöll

Loihi volcano (Hawai'i (Big Island)): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 4 hours ago. The quake, which might be volcanic in origin, was located at a depth of 32.26 km depth at 18 km distance NW from the volcano.
Earthquake details:
2.2 quake North Pacific Ocean, 13 mi south of Pāhala, Hawaii County, Hawaii, United States, Sep 8, 2025 10:05 pm (GMT -10) (18 km NW)
All earthquakes at Loihi

Oshima volcano (Izu Islands): 35 earthquakes up to magnitude 2.9

Possible earthquake swarm: 35 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 1 hour 0 minutes ago. Hypocenter depths ranged between 18.30 and 2.50 km.
Earthquake details: (only 5 largest)
2.9 quake North Pacific Ocean, Tokyo, 33 km southeast of Ito, Shizuoka, Japan, Sep 9, 2025 07:22 pm (GMT +9) (9 km W)
2.6 quake North Pacific Ocean, Tokyo, 25 km southeast of Ito, Shizuoka, Japan, Sep 9, 2025 07:37 pm (GMT +9) (17 km WNW)
2.6 quake North Pacific Ocean, Tokyo, 31 km southeast of Ito, Shizuoka, Japan, Sep 9, 2025 06:05 pm (GMT +9) (9 km W)
2.6 quake North Pacific Ocean, Tokyo, 33 km southeast of Ito, Shizuoka, Japan, Sep 9, 2025 07:22 pm (GMT +9) (10 km W)
2.5 quake North Pacific Ocean, Tokyo, 32 km southeast of Ito, Shizuoka, Japan, Sep 9, 2025 07:37 pm (GMT +9) (11 km W)
All earthquakes at Oshima

Pantelleria volcano (Italy): 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 1 km distance WSW from the volcano.
Earthquake details:
Uncertain quake: M3.0, 2.4 km south of Oum el Bouaghi, Oum el Bouaghi, Algeria, Sep 8, 2025 03:51 pm (GMT +1) (1 km WSW)
All earthquakes at Pantelleria

Piparo volcano (Caribbean): 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 14 km distance WSW from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 27 km south of Chaguanas, Chaguanas, Trinidad and Tobago, Sep 8, 2025 04:58 pm (GMT -4) (14 km WSW)
All earthquakes at Piparo

Terceira volcano (Azores): 2 earthquakes up to magnitude 2.9

2 earthquakes occurred near (under) the volcano during 6 hours, the last being recorded quake 8 hours ago. Hypocenter depths ranged between 8.10 and 2.10 km.
Earthquake details:
2.9 quake 13 km northwest of Angra do Heroismo, Azores, Portugal, Sep 9, 2025 03:33 am (Universal Time) (1 km ENE)
2.1 quake 14 km northwest of Angra do Heroismo, Azores, Portugal, Sep 8, 2025 09:12 pm (Universal Time) (2 km WSW)
All earthquakes at Terceira

Usulután volcano (El Salvador): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 15 hours ago. The quake, which might be volcanic in origin, was located at a depth of 8.00 km depth at 1 km distance E from the volcano.
Earthquake details:
2.3 quake 7.9 km north of Usulutan, Departamento de Usulutan, El Salvador, Sep 8, 2025 03:05 pm (GMT -6) (1 km E)
All earthquakes at Usulután

Vatnafjöll volcano (Iceland): 6 earthquakes up to magnitude 3.2

6 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 9.20 and 5.30 km.
Earthquake details: (only 5 largest)
3.2 quake 32 km northeast of Hvolsvollur, South, Iceland, Sep 8, 2025 01:59 pm (Reykjavik time) (2 km SSW)
2.0 quake 13.4 km WSW of Hekla Sep 9, 2025 08:03 am (Universal Time) (13 km WNW)
1.0 quake 1.9 km SSW of Vatnafjöll Sep 8, 2025 02:30 pm (Universal Time) (2 km S)
0.8 quake Iceland: 2.1 km SSW of Vatnafjöll Sep 8, 2025 04:52 pm (Reykjavik time) (2 km S)
0.8 quake Iceland: 11.9 km SW of Vatnafjöll Sep 8, 2025 04:52 pm (Reykjavik time) (11 km SW)
All earthquakes at Vatnafjöll
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/280242/Volcano-earthquake-report-for-Tuesday-9-Sep-2025.html