Volcano earthquake report for Wednesday, 20 May 2026
World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 20 May 2026 Number in brackets indicate nr of quakes.

Quakes detected near: Bardarbunga (17 quakes between mag 0.1-1.6), Campi Flegrei (Phlegrean Fields) (5 quakes between mag 0.1-3.0), Clear Lake (26 quakes between mag 0.3-2.0), Coso (2 quakes between mag 0.3-1.4), Eldey (6 quakes between mag 0.5-1.0), Gilbanta (1 quake mag 5.2)
Hulubelu (1 quake mag 2.0), Katla (4 quakes between mag 0.0-1.5), Kenger (1 quake mag 1.0), Kilauea (1 quake mag 1.7), Kyejo (1 quake mag 2.9), Loihi (2 quakes between mag 1.8-2.1), Maunaloa (1 quake mag 2.6), Natib (1 quake mag 3.0), Nevado de Longavi (3 quakes between mag 2.8-3.7), Okataina (Tarawera) (1 quake mag 1.5), Prestahnukur (27 quakes between mag 0.5-2.2), Reporoa (1 quake mag 1.4), Sangeang Api (17 quakes between mag 2.0-3.5), Talakmau (1 quake mag 2.1), Tenerife (2 quakes between mag 0.8-1.0), Torfajökull (9 quakes between mag 0.0-1.0), White Island (4 quakes between mag 2.1-2.9) (updated 19h50)

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): 17 earthquakes up to magnitude 1.6

Possible earthquake swarm: 17 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 21.20 and 0.00 km.
Earthquake details: (only 5 largest)
1.6 quake 7.4 km E of Bárðarbunga May 20, 2026 06:31 am (Universal Time) (8 km E)
1.0 quake 3.9 km ESE of Bárðarbunga May 20, 2026 03:28 pm (Universal Time) (4 km E)
1.0 quake 1.0 km SSE of Bárðarbunga May 20, 2026 05:24 am (Universal Time) (1 km ENE)
0.9 quake Iceland: 4.9 km E of Bárðarbunga May 20, 2026 05:11 am (Reykjavik time) (5 km E)
0.8 quake Iceland: 2.5 km S of Bárðarbunga May 20, 2026 03:15 am (Reykjavik time) (1 km S)
All earthquakes at Bardarbunga

Campi Flegrei (Phlegrean Fields) volcano (Italy): 5 earthquakes up to magnitude 3.0

5 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 1 hour 14 minutes ago. Hypocenter depths ranged between 10.00 and 0.03 km.
Earthquake details:
Reported seismic-like event (likely no quake): 6.2 km northwest of Naples, Napoli, Campania, Italy, May 19, 2026 10:46 pm (GMT +2) (11 km NE)
0.5 quake 3.7 km east of Pozzuoli, Napoli, Campania, Italy, May 20, 2026 08:36 pm (GMT +2) (1 km NNW)
0.4 quake 3 km southeast of Pozzuoli, Napoli, Campania, Italy, May 20, 2026 10:16 am (GMT +2) (2 km W)
0.1 quake 1.2 km northwest of Bagnoli, Napoli, Campania, Italy, May 20, 2026 05:33 pm (Universal Time) (2 km ESE)
0.1 quake 1.2 km north of Pozzuoli, Napoli, Campania, Italy, May 20, 2026 02:56 am (Universal Time) (5 km NW)
All earthquakes at Campi Flegrei (Phlegrean Fields)

Clear Lake volcano (California): 26 earthquakes up to magnitude 2.0

Possible earthquake swarm: 26 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 58 minutes ago. Hypocenter depths ranged between 7.55 and 0.21 km.
Earthquake details: (only 5 largest)
2.0 quake Mendocino County, 13 mi southwest of Clearlake, Lake County, California, United States, May 19, 2026 05:43 pm (GMT -7) (14 km SSW)
1.6 quake 12 mi southwest of Clearlake, Lake County, California, United States, May 20, 2026 11:52 am (GMT -7) (15 km S)
1.5 quake 13 mi southwest of Clearlake, Lake County, California, United States, May 20, 2026 03:05 am (GMT -7) (19 km S)
1.3 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, May 20, 2026 07:32 am (GMT -7) (16 km SSW)
1.3 quake Lake County, 28 mi north of Santa Rosa, Sonoma County, California, United States, May 19, 2026 02:05 pm (GMT -7) (15 km S)
All earthquakes at Clear Lake

Gilbanta volcano (Lesser Sunda Islands): magnitude 5.2 earthquake

A magnitude 5.2 earthquake occurred at the volcano 9 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 16 km distance NNW from the volcano.
Earthquake details:
5.2 quake Flores Sea, 17 km east of Pulau Sangeang Island, West Nusa Tenggara, Indonesia, May 20, 2026 06:28 pm (Makassar time) (16 km NNW)
All earthquakes at Gilbanta

Kyejo volcano (Tanzania): magnitude 2.9 earthquake

A magnitude 2.9 earthquake occurred at the volcano 9 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 5 km distance SSW from the volcano.
Earthquake details:
2.9 quake South Africa May 20, 2026 12:49 pm (GMT +2) (5 km SSW)
All earthquakes at Kyejo

Loihi volcano (Hawai'i (Big Island)): 2 earthquakes up to magnitude 2.1

2 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 36.05 and 34.97 km.
Earthquake details:
2.1 quake North Pacific Ocean, 24 mi east of Hawaiian Ocean View, Hawaii County, Hawaii, United States, May 19, 2026 01:08 pm (GMT -10) (19 km NW)
1.8 quake North Pacific Ocean, 41 mi southeast of of Hawai‘i Island, Hawaii County, Hawaii, United States, May 20, 2026 06:57 am (GMT -10) (15 km NNW)
All earthquakes at Loihi

Maunaloa volcano (Hawai'i (Big Island)): magnitude 2.6 earthquake

A magnitude 2.6 earthquake occurred at the volcano 16 hours ago. The quake, which might be volcanic in origin, was located at a depth of 1.65 km depth at 8 km distance S from the volcano.
Earthquake details:
2.6 quake 26 mi southeast of Holualoa, Hawaii County, Hawaii, United States, May 19, 2026 05:57 pm (GMT -10) (8 km S)
All earthquakes at Maunaloa

Natib volcano (Luzon Island): 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 17 km distance NNE from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 30 km southwest of San Fernando, Philippines, May 21, 2026 12:13 am (GMT +8) (17 km NNE)
All earthquakes at Natib

Nevado de Longavi volcano (Central Chile and Argentina): 3 earthquakes up to magnitude 3.7

3 earthquakes occurred near (under) the volcano during 7 hours, the last being recorded quake 8 hours ago. Hypocenter depths ranged between 7.80 and 6.80 km.
Earthquake details:
3.7 quake 51 km southeast of Linares, Provincia de Linares, Region del Maule, Chile, May 20, 2026 12:49 am (GMT -4) (7 km WSW)
3.4 quake 51 km southeast of Linares, Provincia de Linares, Region del Maule, Chile, May 20, 2026 07:33 am (GMT -4) (11 km WSW)
2.8 quake 47 km southeast of Linares, Provincia de Linares, Region del Maule, Chile, May 20, 2026 07:22 am (GMT -4) (11 km W)
All earthquakes at Nevado de Longavi

Prestahnukur volcano (Iceland): 27 earthquakes up to magnitude 2.2

Possible earthquake swarm: 27 earthquakes occurred near (under) the volcano during 17 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 12.90 and 0.10 km.
Earthquake details: (only 5 largest)
2.2 quake 15.4 km SSE of Húsafell May 20, 2026 09:41 am (Universal Time) (12 km WSW)
1.9 quake 15.5 km SSE of Húsafell May 20, 2026 06:35 am (Universal Time) (11 km WSW)
1.8 quake 15.2 km SSE of Húsafell May 20, 2026 09:43 am (Universal Time) (11 km WSW)
1.8 quake 15.3 km SSE of Húsafell May 20, 2026 07:05 am (Universal Time) (12 km WSW)
1.6 quake 15.6 km SSE of Húsafell May 20, 2026 07:23 am (Universal Time) (12 km WSW)
All earthquakes at Prestahnukur

Sangeang Api volcano (Lesser Sunda Islands): 17 earthquakes up to magnitude 3.5

Possible earthquake swarm: 17 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 42 minutes ago. Hypocenter depths ranged between 13.00 and 9.00 km.
Earthquake details: (only 5 largest)
3.5 quake Flores Sea, 17 km northeast of Pulau Sangeang Island, Indonesia, May 20, 2026 12:17 pm (GMT +8) (17 km NE)
3.4 quake Flores Sea, 16 km east of Pulau Sangeang Island, West Nusa Tenggara, Indonesia, May 20, 2026 06:33 pm (GMT +8) (16 km ENE)
2.9 quake Flores Sea, 14 km east of Pulau Sangeang Island, West Nusa Tenggara, Indonesia, May 20, 2026 07:02 pm (GMT +8) (14 km ENE)
2.8 quake Flores Sea, 18 km northeast of Pulau Sangeang Island, Indonesia, May 21, 2026 01:30 am (GMT +8) (17 km NE)
2.6 quake Flores Sea, 18 km northeast of Pulau Sangeang Island, Indonesia, May 20, 2026 05:13 am (GMT +8) (18 km ENE)
All earthquakes at Sangeang Api

Talakmau volcano (Sumatra): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 16 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 3 km distance ESE from the volcano.
Earthquake details:
2.1 quake Kabupaten Pasaman, 58 km northwest of Bukittinggi, Indonesia, May 20, 2026 11:16 am (GMT +7) (3 km ESE)
All earthquakes at Talakmau

Unnamed 49.00°N/34.5°W volcano (Atlantic Ocean): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 19 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 15 km distance WNW from the volcano.
Earthquake details:
Uncertain quake: M3.0, 15 km southeast of Saguenay, Saguenay/Lac-Saint-Jean, Quebec, Canada, May 19, 2026 08:21 pm (GMT -4) (15 km WNW)
All earthquakes at Unnamed 49.00°N/34.5°W

White Island volcano (New Zealand): 4 earthquakes up to magnitude 2.9

4 earthquakes occurred near (under) the volcano during 12 hours, the last being recorded quake 37 minutes ago. Hypocenter depths ranged between 5.00 and 2.00 km.
Earthquake details:
2.9 quake South Pacific Ocean, 53 km north of Whakatane, Bay of Plenty, New Zealand, May 20, 2026 07:14 pm (GMT +12) (3 km NW)
2.6 quake South Pacific Ocean, 69 km north of Whakatane, Bay of Plenty, New Zealand, May 21, 2026 01:44 am (GMT +12) (18 km NNE)
2.4 quake South Pacific Ocean, 70 km north of Whakatane, Bay of Plenty, New Zealand, May 21, 2026 07:13 am (GMT +12) (19 km N)
2.1 quake South Pacific Ocean, 49 km north of Whakatane, Bay of Plenty, New Zealand, May 20, 2026 08:50 pm (GMT +12) (3 km SW)
All earthquakes at White Island
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/302925/Volcano-earthquake-report-for-Wednesday-20-May-2026.html