Volcano earthquake report for Sunday, 17 May 2026

Quakes detected near: Apaneca Range (2 quakes between mag 1.6-1.8), Bardarbunga (31 quakes between mag 0.0-2.6), Biliran (2 quakes between mag 1.9-2.0), Clear Lake (19 quakes between mag 0.3-1.4), Coso (2 quakes between mag 0.7-1.0), El Chichón (3 quakes between mag 2.0-2.6)
Eldey (10 quakes between mag 0.4-2.0), Geureudong (1 quake mag 2.3), Grímsvötn (4 quakes between mag 0.0-1.9), Hofsjökull (3 quakes between mag 0.9-1.4), Hrómundartindur (12 quakes between mag 0.2-1.9), Iriomote-jima (1 quake mag 3.0), Katla (10 quakes between mag 0.0-1.6), Kilauea (3 quakes between mag 1.8-2.4), Kolumbo (1 quake mag 2.0), La Palma (1 quake mag 1.7), Las Pilas (1 quake mag 2.1), Ljósufjöll (8 quakes between mag 0.4-1.3), Makaturing (2 quakes between mag 1.8-2.8), Mammoth Mountain (2 quakes between mag 0.3-1.0), Maroa (1 quake mag 1.8), Mayotte Island (1 quake mag 1.2), Prestahnukur (8 quakes between mag 0.5-1.9), Santo Tomas (1 quake mag 1.3), Sousaki (1 quake mag 1.7), St. Catherine (1 quake mag 3.0), Talakmau (1 quake mag 2.2), Taupo (1 quake mag 1.8), Tenerife (1 quake mag 1.0), Tenorio (1 quake mag 2.3), Toba (1 quake mag 2.1) (updated 15h50)

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:

Bardarbunga volcano (Iceland): 31 earthquakes up to magnitude 2.6

Possible earthquake swarm: 31 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 11.40 and 0.00 km.
Earthquake details: (only 5 largest)
2.6 quake 4.9 km NE of Bárðarbunga May 16, 2026 07:44 pm (Universal Time) (6 km NE)
1.7 quake 5.2 km ESE of Bárðarbunga May 16, 2026 04:53 pm (Universal Time) (5 km ESE)
1.5 quake Iceland: 1.6 km N of Bárðarbunga May 16, 2026 08:13 pm (Reykjavik time) (3 km N)
1.4 quake 3.9 km NNE of Bárðarbunga May 16, 2026 06:13 pm (Universal Time) (5 km NNE)
1.4 quake Iceland: 18.3 km SSE of Kistufell May 16, 2026 07:35 pm (Reykjavik time) (19 km E)
All earthquakes at Bardarbunga

Clear Lake volcano (California): 19 earthquakes up to magnitude 1.4

Possible earthquake swarm: 19 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 1 hour 20 minutes ago. Hypocenter depths ranged between 7.83 and 0.21 km.
Earthquake details: (only 5 largest)
1.4 quake 25 mi north of Santa Rosa, Sonoma County, California, United States, May 17, 2026 12:02 am (GMT -7) (19 km S)
1.1 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, May 16, 2026 08:54 pm (GMT -7) (18 km SSW)
1.1 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, May 17, 2026 07:27 am (GMT -7) (17 km S)
1.1 quake 25 mi north of Santa Rosa, Sonoma County, California, United States, May 16, 2026 10:02 pm (GMT -7) (18 km S)
1.0 quake Lake County, 28 mi north of Santa Rosa, Sonoma County, California, United States, May 16, 2026 04:54 pm (GMT -7) (15 km S)
All earthquakes at Clear Lake

El Chichón volcano (Southern Mexico): 3 earthquakes up to magnitude 2.6

3 earthquakes occurred near (under) the volcano during 4 hours, the last being recorded quake 19 hours ago. Hypocenter depths ranged between 4.10 and 3.00 km.
Earthquake details:
2.6 quake Estado de Chiapas, 35 km southwest of Teapa, Estado de Tabasco, Mexico, May 16, 2026 01:46 pm (GMT -6) (2 km ENE)
2.4 quake Estado de Chiapas, 34 km southwest of Teapa, Estado de Tabasco, Mexico, May 16, 2026 02:20 pm (GMT -6) (4 km E)
2.0 quake Estado de Chiapas, 36 km southwest of Teapa, Estado de Tabasco, Mexico, May 16, 2026 10:19 am (GMT -6) (1 km ESE)
All earthquakes at El Chichón

Geureudong volcano (Sumatra): 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 3.00 km depth at 1 km distance E from the volcano.
Earthquake details:
2.3 quake Kabupaten Bener Meriah, 50 km south of Bireun, Indonesia, May 17, 2026 07:30 am (GMT +7) (1 km E)
All earthquakes at Geureudong

Hrómundartindur volcano (Iceland): 12 earthquakes up to magnitude 1.9

Possible earthquake swarm: 12 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 27 minutes ago. Hypocenter depths ranged between 8.00 and 5.30 km.
Earthquake details: (only 5 largest)
1.9 quake 0.9 km SSE of Hrómundartindi May 16, 2026 09:30 pm (Universal Time) (0 km SE)
1.2 quake 1.2 km E of Hrómundartindi May 16, 2026 07:50 pm (Universal Time) (2 km ENE)
1.0 quake Iceland: 2.0 km SSE of Skeggi_á_Hengli May 17, 2026 07:54 am (Reykjavik time) (5 km W)
0.8 quake 1.2 km SE of Hrómundartindi May 16, 2026 08:43 pm (Universal Time) (1 km ESE)
0.8 quake Iceland: 1.5 km SW of Hrómundartindi May 16, 2026 08:43 pm (Reykjavik time) (1 km SW)
All earthquakes at Hrómundartindur

Iriomote-jima volcano (Ryukyu Islands): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 24 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 12 km distance WSW from the volcano.
Earthquake details:
3.0 quake East China Sea, 20 km north of Iriomote Jima Island, Okinawa, Japan, May 17, 2026 01:09 am (GMT +9) (12 km WSW)
All earthquakes at Iriomote-jima

Kilauea volcano (Hawai'i (Big Island)): 3 earthquakes up to magnitude 2.4

3 earthquakes occurred near (under) the volcano during 13 hours, the last being recorded quake 8 hours ago. Hypocenter depths ranged between 32.06 and 2.68 km.
Earthquake details:
2.4 quake 33 mi southwest of Hilo, Hawaii County, Hawaii, United States, May 16, 2026 10:11 pm (GMT -10) (15 km WSW)
2.1 quake 7.5 mi northeast of Pāhala, Hawaii County, Hawaii, United States, May 16, 2026 06:25 pm (GMT -10) (18 km SW)
1.8 quake 2.6 mi southwest of Volcano, Hawaii County, Hawaii, United States, May 16, 2026 08:55 am (GMT -10) (3 km ENE)
All earthquakes at Kilauea

Las Pilas volcano (Nicaragua): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 17 hours ago. The quake, which might be volcanic in origin, was located at a depth of 7.00 km depth at 6 km distance ESE from the volcano.
Earthquake details:
2.1 quake 26 km east of Leon, Departamento de Leon, Nicaragua, May 16, 2026 05:17 pm (GMT -6) (6 km ESE)
All earthquakes at Las Pilas

Makaturing volcano (Mindanao): 2 earthquakes up to magnitude 2.8

2 earthquakes occurred near (under) the volcano during 3 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 24.00 and 5.00 km.
Earthquake details:
2.8 quake Province of Lanao del Sur, 50 km north of Cotabato, Philippines, May 17, 2026 09:36 pm (GMT +8) (7 km E)
1.8 quake 31 km south of Marawi City, Philippines, May 17, 2026 07:06 pm (GMT +8) (14 km NW)
All earthquakes at Makaturing

St. Catherine volcano (Caribbean): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 14 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 19 km distance WSW from the volcano.
Earthquake details:
Uncertain quake: M3.0, 2.1 km southwest of Caracas, Distrito Federal, Venezuela, May 16, 2026 10:18 pm (GMT -4) (19 km WSW)
All earthquakes at St. Catherine

Talakmau volcano (Sumatra): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 23 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 7.00 km depth at 2 km distance ESE from the volcano.
Earthquake details:
2.2 quake Kabupaten Pasaman, 59 km northwest of Bukittinggi, Indonesia, May 17, 2026 10:27 pm (GMT +7) (2 km ESE)
All earthquakes at Talakmau

Tenorio volcano (Costa Rica): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 17 hours ago. The quake, which might be volcanic in origin, was located at a depth of 13.00 km depth at 9 km distance SE from the volcano.
Earthquake details:
2.3 quake Provincia de Alajuela, 24 km northeast of Canas, Costa Rica, May 16, 2026 04:43 pm (Costa_Rica time) (9 km SE)
All earthquakes at Tenorio

Toba volcano (Sumatra): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 19 hours ago. The quake, which might be volcanic in origin, was located at a depth of 7.00 km depth at 8 km distance WSW from the volcano.
Earthquake details:
2.1 quake Kabupaten Humbang Hasundutan, 39 km northwest of Tarutung, Indonesia, May 17, 2026 03:53 am (GMT +7) (8 km WSW)
All earthquakes at Toba
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