Volcano earthquake report for Saturday, 16 May 2026

Quakes detected near: Akyarlar (1 quake mag 1.6), Brennisteinsfjöll (2 quakes between mag 1.1-1.3), Churchill (1 quake mag 1.0), Clear Lake (29 quakes between mag 0.2-1.4), Coso (3 quakes between mag 1.6-2.4), Don Joao de Castro Bank (1 quake mag 3.0)
El Chichón (1 quake mag 2.2), Eldey (9 quakes between mag 0.6-1.9), Gede-Pangrango (1 quake mag 2.1), Irazu (1 quake mag 1.4), Izumbwe-Mpoli (1 quake mag 3.0), Katla (6 quakes between mag 0.0-2.2), Kilauea (4 quakes between mag 1.3-1.9), Krafla (1 quake mag 1.5), Loihi (1 quake mag 2.0), Mammoth Mountain (1 quake mag 1.9), Marapi (1 quake mag 2.6), Martin (7 quakes between mag 0.1-1.2), Mayotte Island (1 quake mag 1.3), Ontake-san (1 quake mag 3.5), Prestahnukur (29 quakes between mag 0.1-1.9), Pululahua (1 quake mag 2.7), Sekincau Belirang (1 quake mag 2.0), Süphan Dağ (1 quake mag 2.1), Taupo (1 quake mag 1.3), Tenerife (4 quakes between mag 1.2-1.7), Tjörnes Fracture Zone (1 quake mag 1.6), Tongariro (2 quakes between mag 0.9-1.2) (updated 13h50)

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): 29 earthquakes up to magnitude 1.4

Possible earthquake swarm: 29 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 21 minutes ago. Hypocenter depths ranged between 16.86 and 0.17 km.
Earthquake details: (only 5 largest)
1.4 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, May 15, 2026 04:46 pm (GMT -7) (16 km S)
1.3 quake 26 mi north of Santa Rosa, Sonoma County, California, United States, May 15, 2026 11:19 pm (GMT -7) (18 km S)
1.3 quake 26 mi north of Santa Rosa, Sonoma County, California, United States, May 15, 2026 09:23 am (GMT -7) (18 km S)
1.3 quake Lake County, 28 mi north of Santa Rosa, Sonoma County, California, United States, May 15, 2026 11:58 am (GMT -7) (15 km S)
1.1 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, May 15, 2026 08:19 am (GMT -7) (16 km SSW)
All earthquakes at Clear Lake

Coso volcano (California): 3 earthquakes up to magnitude 2.4

3 earthquakes occurred near (under) the volcano during 1 hour 57 minutes, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 1.47 and 1.24 km.
Earthquake details:
2.4 quake Inyo County, 30 mi north of Ridgecrest, Kern County, California, United States, May 16, 2026 03:08 am (GMT -7) (0 km NNW)
2.3 quake Inyo County, 29 mi north of Ridgecrest, Kern County, California, United States, May 16, 2026 01:43 am (GMT -7) (0 km S)
1.6 quake Inyo County, 29 mi north of Ridgecrest, Kern County, California, United States, May 16, 2026 01:11 am (GMT -7) (0 km WNW)
All earthquakes at Coso

Don Joao de Castro Bank volcano (Azores): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 16 hours ago. The quake, which might be volcanic in origin, was located at a depth of 1.00 km depth at 17 km distance SE from the volcano.
Earthquake details:
3.0 quake North Atlantic Ocean, 84 km northwest of Ponta Delgada, Azores, Portugal, May 15, 2026 09:30 pm (Universal Time) (17 km SE)
All earthquakes at Don Joao de Castro Bank

El Chichón volcano (Southern Mexico): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 23 hours ago. The quake, which might be volcanic in origin, was located at a depth of 3.00 km depth at 1 km distance SSE from the volcano.
Earthquake details:
2.2 quake Estado de Chiapas, 37 km southwest of Teapa, Estado de Tabasco, Mexico, May 15, 2026 08:50 am (GMT -6) (1 km SSE)
All earthquakes at El Chichón

Gede-Pangrango volcano (West Java): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 2 hours ago. The quake, which might be volcanic in origin, was located at a depth of 22.00 km depth at 2 km distance ENE from the volcano.
Earthquake details:
2.1 quake 16 km west of Cianjur, Kabupaten Cianjur, Jawa Barat, Indonesia, May 16, 2026 06:40 pm (GMT +7) (2 km ENE)
All earthquakes at Gede-Pangrango

Izumbwe-Mpoli volcano (Tanzania): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 17 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 7 km distance NE from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 0.8 km north of Mbeya, Mbeya Region, Tanzania, May 15, 2026 08:55 pm (GMT +0) (7 km NE)
All earthquakes at Izumbwe-Mpoli

Katla volcano (Iceland): 6 earthquakes up to magnitude 2.2

6 earthquakes occurred near (under) the volcano during 8 hours, the last being recorded quake 15 hours ago. Hypocenter depths ranged between 5.20 and 0.80 km.
Earthquake details: (only 5 largest)
2.2 quake Iceland: 5.0 km SW of Hábunga May 15, 2026 04:18 pm (Reykjavik time) (11 km SSW)
1.1 quake Iceland: 5.6 km NNE of Hábunga May 15, 2026 02:16 pm (Reykjavik time) (1 km SSE)
0.4 quake Iceland: 1.0 km ENE of Goðabunga May 15, 2026 10:22 pm (Reykjavik time) (9 km W)
0.2 quake Iceland: 2.3 km ENE of Goðabunga May 15, 2026 10:42 pm (Reykjavik time) (8 km WNW)
0.2 quake Iceland: 7.2 km NNE of Hábunga May 15, 2026 04:18 pm (Reykjavik time) (1 km NE)
All earthquakes at Katla

Marapi volcano (Sumatra): magnitude 2.6 earthquake

A magnitude 2.6 earthquake occurred at the volcano 18 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.00 km depth at 16 km distance S from the volcano.
Earthquake details:
2.6 quake Kabupaten Tanah Datar, 11 km southeast of Padangpanjang, Indonesia, May 16, 2026 03:07 am (GMT +7) (16 km S)
All earthquakes at Marapi

Ontake-san volcano (Honshu): magnitude 3.5 earthquake

A magnitude 3.5 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 NNW from the volcano.
Earthquake details:
3.5 quake 20 km southeast of Takayama, Gifu, Japan, May 16, 2026 07:27 am (GMT +9) (14 km NNW)
All earthquakes at Ontake-san

Prestahnukur volcano (Iceland): 29 earthquakes up to magnitude 1.9

Possible earthquake swarm: 29 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 55 minutes ago. Hypocenter depths ranged between 19.60 and 0.50 km.
Earthquake details: (only 5 largest)
1.9 quake Iceland: 16.1 km SSE of Húsafell May 16, 2026 04:32 am (Reykjavik time) (8 km WSW)
1.8 quake Iceland: 16.6 km SSE of Húsafell May 16, 2026 04:54 am (Reykjavik time) (9 km SW)
1.7 quake Iceland: 15.7 km S of Húsafell May 16, 2026 10:32 am (Reykjavik time) (15 km WSW)
1.7 quake Iceland: 14.7 km N of Skjaldbreið May 16, 2026 02:28 am (Reykjavik time) (13 km SW)
1.6 quake 14.5 km NNW of Skjaldbreið May 16, 2026 04:37 am (Universal Time) (14 km SW)
All earthquakes at Prestahnukur

Pululahua volcano (Ecuador): magnitude 2.7 earthquake

A magnitude 2.7 earthquake occurred at the volcano 6 hours ago. The quake, which might be volcanic in origin, was located at a depth of 14.00 km depth at 2 km distance NE from the volcano.
Earthquake details:
2.7 quake 32 km north of Quito, Provincia de Pichincha, Ecuador, May 16, 2026 02:25 am (GMT -5) (2 km NE)
All earthquakes at Pululahua
Pululahua (also spelled as Pululgua) volcano is a low forested stratovolcano located immediately north of the equator, 15 km north of the capital Quito.

Süphan Dağ volcano (Turkey): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 24 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.00 km depth at 7 km distance NE from the volcano.
Earthquake details:
2.1 quake Bitlis, 27 km south of Patnos, Agri, Turkey, May 15, 2026 05:08 pm (GMT +3) (7 km NE)
All earthquakes at Süphan Dağ
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