Volcano earthquake report for Tuesday, 29 September 2026

Quakes detected near: Abu (1 quake mag 3.2), Agua (1 quake mag 1.2), Balut (3 quakes between mag 1.6-3.8), Bardarbunga (3 quakes between mag 0.5-1.0), Baru (1 quake mag 3.0), Chingo (1 quake mag 1.5)
Clear Lake (27 quakes between mag 0.2-2.1), Coso (2 quakes between mag 0.7-1.1), Eldey (1 quake mag 1.5), Flores (10 quakes between mag 1.0-2.8), Irazu (1 quake mag 1.3), Kanlaon (1 quake mag 1.8), Katla (5 quakes between mag 0.0-1.8), Kilauea (2 quakes between mag 2.0-2.5), Kolbeinsey Ridge (5 quakes between mag 2.1-3.5), Latukan (2 quakes between mag 1.9-2.6), Ljósufjöll (3 quakes between mag 0.8-1.1), Loki-Fögrufjöll volcano (1 quake mag 1.2), Martin (2 quakes between mag 0.6-1.0), Masaya (1 quake mag 2.5), Maunaloa (1 quake mag 1.8), Mount St. Helens (1 quake mag 1.7), Nisyros (1 quake mag 1.4), Paluweh (1 quake mag 3.2), Pavlof Sister (1 quake mag 2.0), Sabancaya (1 quake mag 3.3), Sousaki (1 quake mag 1.5), Tendürek Dağ (1 quake mag 1.6), Theistareykjarbunga (1 quake mag 1.2), Tjörnes Fracture Zone (1 quake mag 1.1), Vesuvius (8 quakes between mag 0.1-1.2), Wide Bay (6 quakes between mag 0.0-1.7) (updated 13h50)\n\nNote: 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.\n
Volcanoes with recent earthquakes above magnitude 2 or more than 10 quakes are listed below:

Abu volcano (Honshu): magnitude 3.2 earthquake

A magnitude 3.2 earthquake occurred at the volcano 5 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 8 km distance ENE from the volcano.
Earthquake details:
3.2 quake 37 km north of Yamaguchi, Yamaguchi, Japan, Sep 29, 2026 06:12 pm (GMT +9) (8 km ENE)
All earthquakes at Abu
Abu is a volcanic field of more than 40 centers spread across about 400 square kilometers in southwestern Honshu, Japan. Its last known activity formed the Kasayama scoria cone about 8,800 years ago.

Balut volcano (Mindanao): 3 earthquakes up to magnitude 3.8

3 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 45.00 and 10.00 km.
Earthquake details:
3.8 quake Philippine Sea, 17 km southwest of Sarangani Island, Philippines, Sep 29, 2026 06:48 pm (GMT +8) (9 km S)
3.0 quake Philippine Sea, 16 km south of Sarangani Island, Philippines, Sep 29, 2026 01:18 am (GMT +8) (15 km SE)
1.6 quake Philippine Sea, 20 km southwest of Sarangani Island, Philippines, Sep 29, 2026 02:47 am (GMT +8) (10 km SSW)
All earthquakes at Balut
Balut is an 840 m island stratovolcano south of Mindanao whose last known eruption occurred between about 2 million and 11,700 years ago. Hot springs and thermally altered ground occur on its western and southwestern flanks.

Baru volcano (Panama): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 18 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 13 km distance ESE from the volcano.
Earthquake details:
Reported quake or seismic-like event: 35 km northeast of La Concepcion, Provincia de Chiriqui, Panama, Sep 28, 2026 02:21 pm (GMT -5) (13 km ESE)
All earthquakes at Baru

Clear Lake volcano (California): 27 earthquakes up to magnitude 2.1

Possible earthquake swarm: 27 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 13 minutes ago. Hypocenter depths ranged between 3.16 and 0.07 km.
Earthquake details: (only 5 largest)
2.1 quake Sonoma County, 14 mi southwest of Clearlake, Lake County, California, United States, Sep 28, 2026 01:20 pm (GMT -7) (15 km SSW)
1.6 quake Sonoma County, 14 mi southwest of Clearlake, Lake County, California, United States, Sep 28, 2026 09:37 am (GMT -7) (18 km S)
1.5 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Sep 29, 2026 02:22 am (GMT -7) (16 km SSW)
1.4 quake Mendocino County, 29 mi north of Santa Rosa, Sonoma County, California, United States, Sep 28, 2026 01:26 pm (GMT -7) (14 km SSW)
1.3 quake Lake County, 28 mi north of Santa Rosa, Sonoma County, California, United States, Sep 29, 2026 04:28 am (GMT -7) (15 km S)
All earthquakes at Clear Lake

Flores volcano (Guatemala): 10 earthquakes up to magnitude 2.8

10 earthquakes occurred near (under) the volcano during 12 hours, the last being recorded quake 11 hours ago. Hypocenter depths ranged between 14.20 and 3.20 km.
Earthquake details: (only 5 largest)
2.8 quake 23 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Sep 28, 2026 10:37 am (GMT -6) (14 km WNW)
2.8 quake 23 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Sep 28, 2026 04:37 pm (GMT -6) (14 km WNW)
2.2 quake 23 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Sep 28, 2026 08:05 pm (GMT -6) (14 km WNW)
2.0 quake 23 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Sep 28, 2026 07:58 pm (GMT -6) (14 km WNW)
1.8 quake 26 km west of Jutiapa, Departamento de Jutiapa, Guatemala, Sep 28, 2026 03:04 pm (GMT -6) (15 km WNW)
All earthquakes at Flores
Flores, also known as Volcán Amayo, is a volcanic field about 10 km west of Jutiapa in southeastern Guatemala. Its last eruption is undated, and none are known from approximately the past 11,700 years.

Kilauea volcano (Hawai'i (Big Island)): 2 earthquakes up to magnitude 2.5

2 earthquakes occurred near (under) the volcano during 3 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 4.03 and 0.73 km.
Earthquake details:
2.5 quake 27 mi south of Hilo, Hawaii County, Hawaii, United States, Sep 28, 2026 11:39 pm (GMT -10) (18 km ESE)
2.0 quake 26 mi southwest of Hilo, Hawaii County, Hawaii, United States, Sep 28, 2026 08:54 pm (GMT -10) (3 km SE)
All earthquakes at Kilauea

Kolbeinsey Ridge volcano (Iceland): 5 earthquakes up to magnitude 3.5

5 earthquakes occurred near (under) the volcano during 14 hours, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 12.20 and 10.00 km.
Earthquake details:
3.5 quake 62 km north of Siglufjordur, Northeast, Iceland, Sep 28, 2026 05:38 pm (Reykjavik time) (10 km WNW)
2.9 quake 116 km north of Akureyri, Northeast, Iceland, Sep 29, 2026 07:46 am (Universal Time) (9 km WNW)
2.5 quake 36.5 km WNW of Grímsey Sep 29, 2026 07:52 am (Universal Time) (11 km WNW)
2.5 quake 36.5 km NW of Grímsey Sep 28, 2026 07:47 pm (Universal Time) (11 km NW)
2.1 quake 35.3 km WNW of Grímsey Sep 28, 2026 11:44 pm (Universal Time) (10 km W)
All earthquakes at Kolbeinsey Ridge
Kolbeinsey Ridge is a submarine fissure-vent system north of Iceland, with tiny Kolbeinsey Island as its only expression above sea level. Historical eruption reports from 1372 and 1755 have uncertain locations.

Latukan volcano (Mindanao): 2 earthquakes up to magnitude 2.6

2 earthquakes occurred near (under) the volcano during 4 minutes, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 7.00 and 5.00 km.
Earthquake details:
2.6 quake 34 km southeast of Marawi City, Philippines, Sep 29, 2026 04:08 pm (GMT +8) (9 km NNW)
1.9 quake 31 km southeast of Marawi City, Philippines, Sep 29, 2026 04:04 pm (GMT +8) (11 km NNW)
All earthquakes at Latukan
Latukan is a 2,280 m stratovolcano in northwestern Mindanao, southeast of Lake Lanao. Its last known eruption is broadly assigned to between about 2.6 million and 11,700 years ago, although its exact age remains unknown.

Masaya volcano (Nicaragua): magnitude 2.5 earthquake

A magnitude 2.5 earthquake occurred at the volcano 20 hours ago. The quake, which might be volcanic in origin, was located at a depth of 15.00 km depth at 9 km distance NNE from the volcano.
Earthquake details:
2.5 quake Departamento de Masaya, 14 km southeast of Managua, Nicaragua, Sep 28, 2026 12:00 pm (GMT -6) (9 km NNE)
All earthquakes at Masaya
Masaya is a frequently active Nicaraguan volcano about 20 km southeast of Managua. Known for its intermittent lava lake, it has also produced lava flows, explosive eruptions, ashfall and prolonged gas emissions.

Paluweh volcano (Lesser Sunda Islands): magnitude 3.2 earthquake

A magnitude 3.2 earthquake occurred at the volcano 24 hours ago. The quake, which might be volcanic in origin, was located at a depth of 13.00 km depth at 15 km distance NNW from the volcano.
Earthquake details:
3.2 quake Flores Sea, 72 km north of Ende, Kabupaten Ende, East Nusa Tenggara, Indonesia, Sep 28, 2026 10:16 pm (GMT +8) (15 km NNW)
All earthquakes at Paluweh
Paluweh is an island-forming stratovolcano north of Flores, Indonesia. Its major eruptions include a destructive, tsunami-producing event in 1928 and deadly pyroclastic flows in 2013.

Sabancaya volcano (Peru): magnitude 3.3 earthquake

A magnitude 3.3 earthquake occurred at the volcano 19 hours ago. The quake, which might be volcanic in origin, was located at a depth of 9.00 km depth at 2 km distance N from the volcano.
Earthquake details:
3.3 quake 78 km northwest of Arequipa, Arequipa, Peru, Sep 28, 2026 01:33 pm (GMT -5) (2 km N)
All earthquakes at Sabancaya
Sabancaya is an active stratovolcano in Peru whose observed eruptions date to 1750. Its recent activity has included frequent explosions, ash plumes, lava-dome growth, pyroclastic flows and lahars.
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