Volcano earthquake report for Wednesday, 20 May 2026

Quakes detected near: Bardarbunga (20 quakes between mag 0.0-1.6), Campi Flegrei (Phlegrean Fields) (3 quakes between mag 0.1-3.0), Chinameca (1 quake mag 2.3), Clear Lake (23 quakes between mag 0.3-2.0), Davidof (1 quake mag 1.7), Eldey (7 quakes between mag 0.5-1.0)
Gilbanta (1 quake mag 5.2), Hulubelu (1 quake mag 2.0), Katla (2 quakes between mag 1.2-1.5), Kenger (1 quake mag 1.0), Kilauea (1 quake mag 1.7), Krakatau (1 quake mag 2.9), Kyejo (1 quake mag 3.0), Lanzarote (2 quakes between mag 1.7-3.0), Ljósufjöll (4 quakes between mag 0.0-1.7), Loihi (1 quake mag 2.1), Natib (1 quake mag 3.0), Nevado de Longavi (3 quakes between mag 2.8-3.7), Okataina (Tarawera) (3 quakes between mag 1.5-2.0), Prestahnukur (26 quakes between mag 0.5-2.2), Reporoa (1 quake mag 1.4), Sangeang Api (14 quakes between mag 2.1-3.5), Talakmau (1 quake mag 2.1), Tenerife (2 quakes between mag 0.8-1.0), Torfajökull (13 quakes between mag 0.0-1.0), Trident (1 quake mag 1.1), White Island (3 quakes between mag 2.1-2.9) (updated 16h50)

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): 20 earthquakes up to magnitude 1.6

Possible earthquake swarm: 20 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 1 hour 22 minutes 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)
1.5 quake 9.0 km E of Bárðarbunga May 19, 2026 07:24 pm (Universal Time) (9 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)
All earthquakes at Bardarbunga

Campi Flegrei (Phlegrean Fields) volcano (Italy): 3 earthquakes up to magnitude 3.0

3 earthquakes occurred near (under) the volcano during 12 hours, the last being recorded quake 9 hours 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)
0.4 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 north of Pozzuoli, Napoli, Campania, Italy, May 20, 2026 02:56 am (Universal Time) (5 km NW)
All earthquakes at Campi Flegrei (Phlegrean Fields)

Chinameca volcano (El Salvador): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 23 hours ago. The quake, which might be volcanic in origin, was located at a depth of 6.00 km depth at 12 km distance N from the volcano.
Earthquake details:
2.3 quake 18 km northwest of San Miguel, Departamento de San Miguel, El Salvador, May 19, 2026 11:47 am (GMT -6) (12 km N)
All earthquakes at Chinameca

Clear Lake volcano (California): 23 earthquakes up to magnitude 2.0

Possible earthquake swarm: 23 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 2 hours 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)
1.5 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)
1.1 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, May 20, 2026 07:32 am (GMT -7) (16 km SSW)
All earthquakes at Clear Lake

Gilbanta volcano (Lesser Sunda Islands): magnitude 5.2 earthquake

A magnitude 5.2 earthquake occurred at the volcano 6 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

Krakatau volcano (Sunda Strait): magnitude 2.9 earthquake

A magnitude 2.9 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 12 km distance SW from the volcano.
Earthquake details:
2.9 quake Indian Ocean, 31 km southwest of Pulau Sebesi Island, Lampung, Indonesia, May 20, 2026 12:55 am (GMT +7) (12 km SW)
All earthquakes at Krakatau

Kyejo volcano (Tanzania): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 6 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:
Reported quake or seismic-like event: 3.5 km northeast of Gaborone, Gaborone, Botswana, May 20, 2026 12:49 pm (GMT +2) (5 km SSW)
All earthquakes at Kyejo

Lanzarote volcano (Canary Islands): 2 earthquakes up to magnitude 3.0

2 earthquakes occurred near (under) the volcano during 60 seconds, the last being recorded quake 21 hours ago. Hypocenter depths ranged between 10.00 and 4.00 km.
Earthquake details:
Reported seismic-like event (likely no quake): 9.2 km west of Arrecife, Las Palmas, Canary Islands, Spain, May 19, 2026 08:28 pm (GMT +1) (12 km ESE)
1.7 quake 20 km north of Yaiza, Las Palmas, Canary Islands, Spain, May 19, 2026 08:29 pm (GMT +1) (15 km N)
All earthquakes at Lanzarote

Loihi volcano (Hawai'i (Big Island)): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 18 hours ago. The quake, which might be volcanic in origin, was located at a depth of 36.05 km depth at 19 km distance NW from the volcano.
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)
All earthquakes at Loihi

Natib volcano (Luzon Island): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 37 minutes 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:
Unconfirmed quake or seismic-like event reported: 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 5 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): 26 earthquakes up to magnitude 2.2

Possible earthquake swarm: 26 earthquakes occurred near (under) the volcano during 16 hours, the last being recorded quake 56 minutes 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 15.3 km SSE of Húsafell May 20, 2026 07:05 am (Universal Time) (12 km WSW)
1.8 quake 15.2 km SSE of Húsafell May 20, 2026 09:43 am (Universal Time) (11 km WSW)
1.6 quake 15.4 km SSE of Húsafell May 20, 2026 05:31 am (Universal Time) (10 km WSW)
All earthquakes at Prestahnukur

Sangeang Api volcano (Lesser Sunda Islands): 14 earthquakes up to magnitude 3.5

Possible earthquake swarm: 14 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 13.00 and 10.00 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)
2.6 quake Flores Sea, 17 km east of Pulau Sangeang Island, West Nusa Tenggara, Indonesia, May 20, 2026 07:11 pm (GMT +8) (17 km E)
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 13 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

Torfajökull volcano (Iceland): 13 earthquakes up to magnitude 1.0

Possible earthquake swarm: 13 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 1 hour 57 minutes ago. Hypocenter depths ranged between 8.10 and 0.00 km.
Earthquake details: (only 5 largest)
1.0 quake 9.9 km NNW of Álftavatn May 20, 2026 01:32 pm (Universal Time) (5 km WNW)
0.8 quake Iceland: 12.0 km NNW of Álftavatn May 20, 2026 02:53 pm (Reykjavik time) (7 km WNW)
0.7 quake Iceland: 11.1 km NNW of Álftavatn May 20, 2026 02:53 pm (Reykjavik time) (6 km WNW)
0.7 quake Iceland: 5.8 km NNW of Álftavatn May 20, 2026 01:22 pm (Reykjavik time) (5 km SW)
0.5 quake 10.3 km N of Álftavatn May 19, 2026 06:07 pm (Universal Time) (4 km WNW)
All earthquakes at Torfajökull

Unnamed 49.00°N/34.5°W volcano (Atlantic Ocean): 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 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): 3 earthquakes up to magnitude 2.9

3 earthquakes occurred near (under) the volcano during 7 hours, the last being recorded quake 3 hours 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)
2.1 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