Volcano earthquake report for Thursday, 21 May 2026

Quakes detected near: Akuseki-jima (1 quake mag 3.7), Bardarbunga (8 quakes between mag 0.1-2.2), Biliran (1 quake mag 2.1), Campi Flegrei (Phlegrean Fields) (31 quakes between mag 0.1-4.1), Clear Lake (25 quakes between mag 0.3-1.8), Coso (2 quakes between mag 0.9-1.4)
Eldey (5 quakes between mag 0.1-1.1), Hulubelu (8 quakes between mag 1.9-2.8), Jan Mayen (1 quake mag 1.6), Katla (8 quakes between mag 0.0-2.3), Kilauea (2 quakes between mag 1.8-2.5), La Palma (1 quake mag 1.4), Leonard Range (1 quake mag 2.9), Loihi (6 quakes between mag 1.8-2.9), Maunaloa (1 quake mag 1.7), Mayotte Island (1 quake mag 1.3), Natib (1 quake mag 3.0), Nevado de Longavi (2 quakes between mag 2.8-3.4), Okataina (Tarawera) (1 quake mag 1.5), Perbakti (1 quake mag 3.0), Piton de la Fournaise (1 quake mag 1.0), Prestahnukur (13 quakes between mag 0.2-1.9), Pulosari (2 quakes between mag 2.3-2.6), Reporoa (1 quake mag 1.4), Sangeang Api (16 quakes between mag 2.0-2.9), Santorini (1 quake mag 1.8), Sibualbuali (1 quake mag 3.1), Stepovak Bay 4 (2 quakes between mag 2.2-2.2), Svartsengi (3 quakes between mag 0.2-1.0), Süphan Dağ (1 quake mag 2.1), Torfajökull (7 quakes between mag 0.0-1.0), Vesuvius (4 quakes between mag 0.1-3.0), Westdahl (1 quake mag 1.0), White Island (2 quakes between mag 2.4-2.6), unnamed (1 quake mag 1.6) (updated 10h50)

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:

Akuseki-jima volcano (Ryukyu Islands): magnitude 3.7 earthquake

A magnitude 3.7 earthquake occurred at the volcano 10 hours ago. The quake, which might be volcanic in origin, was located at a depth of 20.00 km depth at 12 km distance SW from the volcano.
Earthquake details:
3.7 quake East China Sea, Kagoshima-ken, 33 km southwest of Suwanose-jima Island, Japan, May 21, 2026 10:11 am (GMT +9) (12 km SW)
All earthquakes at Akuseki-jima

Bardarbunga volcano (Iceland): 8 earthquakes up to magnitude 2.2

8 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 4.60 and 0.00 km.
Earthquake details: (only 5 largest)
2.2 quake 7.2 km ESE of Bárðarbunga May 21, 2026 01:47 am (Universal Time) (8 km E)
1.6 quake 3.1 km S of Bárðarbunga May 21, 2026 04:43 am (Universal Time) (2 km SSE)
1.2 quake 4.0 km SE of Bárðarbunga May 21, 2026 08:34 am (Universal Time) (3 km ESE)
1.0 quake 3.9 km ESE of Bárðarbunga May 20, 2026 03:28 pm (Universal Time) (4 km E)
0.6 quake 5.1 km S of Bárðarbunga May 20, 2026 12:31 pm (Universal Time) (4 km S)
All earthquakes at Bardarbunga

Biliran volcano (Central Philippines): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 4 hours ago. The quake, which might be volcanic in origin, was located at a depth of 2.00 km depth at 12 km distance SSW from the volcano.
Earthquake details:
2.1 quake 25 km northwest of Carigara, Province of Leyte, Eastern Visayas, Philippines, May 21, 2026 02:24 pm (GMT +8) (12 km SSW)
All earthquakes at Biliran

Campi Flegrei (Phlegrean Fields) volcano (Italy): 31 earthquakes up to magnitude 4.1

Possible earthquake swarm: 31 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 1 hour 49 minutes ago. Hypocenter depths ranged between 7.39 and 0.76 km.
Earthquake details: (only 5 largest)
4.1 quake 18 km southwest of Naples, Napoli, Campania, Italy, May 21, 2026 05:50 am (GMT +2) (4 km SW)
2.1 quake Tyrrhenian Sea, 19 km northeast of Isola d'Ischia Island, Italy, May 21, 2026 05:57 am (GMT +2) (11 km SW)
1.3 quake Tyrrhenian Sea, 19 km northeast of Isola d'Ischia Island, Italy, May 21, 2026 02:17 am (GMT +2) (4 km SW)
1.2 quake Tyrrhenian Sea, 18 km northeast of Isola d'Ischia Island, Italy, May 21, 2026 05:53 am (GMT +2) (4 km SW)
0.9 quake Tyrrhenian Sea, 19 km northeast of Isola d'Ischia Island, Italy, May 21, 2026 05:59 am (GMT +2) (4 km SW)
All earthquakes at Campi Flegrei (Phlegrean Fields)

Clear Lake volcano (California): 25 earthquakes up to magnitude 1.8

Possible earthquake swarm: 25 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 18 minutes ago. Hypocenter depths ranged between 9.44 and 1.27 km.
Earthquake details: (only 5 largest)
1.8 quake Sonoma County, 14 mi southwest of Clearlake, Lake County, California, United States, May 20, 2026 05:10 pm (GMT -7) (19 km S)
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 02:43 pm (GMT -7) (15 km S)
1.5 quake 12 mi southwest of Clearlake, Lake County, California, United States, May 20, 2026 01:02 pm (GMT -7) (15 km S)
1.4 quake Lake County, 27 mi north of Santa Rosa, Sonoma County, California, United States, May 20, 2026 04:02 pm (GMT -7) (16 km S)
All earthquakes at Clear Lake

Hulubelu volcano (Sumatra): 8 earthquakes up to magnitude 2.8

8 earthquakes occurred near (under) the volcano during 13 hours, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 10.00 and 3.00 km.
Earthquake details: (only 5 largest)
2.8 quake Kabupaten Tanggamus, 73 km west of Bandar Lampung, Indonesia, May 21, 2026 11:32 am (GMT +7) (11 km SSE)
2.5 quake Kabupaten Tanggamus, 70 km west of Bandar Lampung, Indonesia, May 21, 2026 09:51 am (GMT +7) (10 km SSE)
2.3 quake Kabupaten Tanggamus, 70 km west of Bandar Lampung, Indonesia, May 21, 2026 09:40 am (GMT +7) (12 km SSE)
2.1 quake Kabupaten Tanggamus, 68 km west of Bandar Lampung, Indonesia, May 21, 2026 09:42 am (GMT +7) (11 km SE)
2.1 quake Kabupaten Tanggamus, 72 km west of Bandar Lampung, Indonesia, May 21, 2026 09:35 am (GMT +7) (11 km SSE)
All earthquakes at Hulubelu

Katla volcano (Iceland): 8 earthquakes up to magnitude 2.3

8 earthquakes occurred near (under) the volcano during 13 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 1.00 and 0.00 km.
Earthquake details: (only 5 largest)
2.3 quake 7.6 km N of Hábunga May 21, 2026 04:02 am (Universal Time) (2 km NW)
1.3 quake 5.3 km NNE of Hábunga May 21, 2026 05:27 am (Universal Time) (2 km SW)
1.1 quake Iceland: 6.1 km E of Goðabunga May 21, 2026 04:09 am (Reykjavik time) (4 km WNW)
0.9 quake 5.9 km N of Hábunga May 21, 2026 03:54 am (Universal Time) (3 km W)
0.8 quake 5.8 km E of Goðabunga May 21, 2026 03:52 am (Universal Time) (4 km WNW)
All earthquakes at Katla

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

2 earthquakes occurred near (under) the volcano during 8 minutes, the last being recorded quake 8 hours ago. Hypocenter depths ranged between 30.15 and 29.71 km.
Earthquake details:
2.5 quake 36 mi southwest of Hilo, Hawaii County, Hawaii, United States, May 20, 2026 04:37 pm (GMT -10) (17 km SW)
1.8 quake 37 mi southwest of Hilo, Hawaii County, Hawaii, United States, May 20, 2026 04:28 pm (GMT -10) (19 km SW)
All earthquakes at Kilauea

Leonard Range volcano (Mindanao): magnitude 2.9 earthquake

A magnitude 2.9 earthquake occurred at the volcano 1 hour 37 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 6.00 km depth at 5 km distance WSW from the volcano.
Earthquake details:
2.9 quake 17 km east of Maco, Davao de Oro, Davao, Philippines, May 21, 2026 05:13 pm (GMT +8) (5 km WSW)
All earthquakes at Leonard Range

Loihi volcano (Hawai'i (Big Island)): 6 earthquakes up to magnitude 2.9

6 earthquakes occurred near (under) the volcano during 13 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 34.97 and 15.61 km.
Earthquake details: (only 5 largest)
2.9 quake North Pacific Ocean, 42 mi southeast of of Hawai‘i Island, Hawaii County, Hawaii, United States, May 20, 2026 07:01 pm (GMT -10) (14 km NW)
2.6 quake North Pacific Ocean, 39 mi southeast of of Hawai‘i Island, Hawaii County, Hawaii, United States, May 20, 2026 01:45 pm (GMT -10) (19 km NW)
2.3 quake North Pacific Ocean, 12 mi southeast of Pāhala, Hawaii County, Hawaii, United States, May 20, 2026 07:33 pm (GMT -10) (18 km NW)
2.2 quake North Pacific Ocean, 14 mi southeast of Pāhala, Hawaii County, Hawaii, United States, May 20, 2026 02:33 pm (GMT -10) (16 km NW)
1.9 quake North Pacific Ocean, 41 mi southeast of of Hawai‘i Island, Hawaii County, Hawaii, United States, May 20, 2026 10:15 am (GMT -10) (15 km NNW)
All earthquakes at Loihi

Natib volcano (Luzon Island): 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 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): 2 earthquakes up to magnitude 3.4

2 earthquakes occurred near (under) the volcano during 11 minutes, the last being recorded quake 23 hours ago. Hypocenter depths ranged between 7.00 and 6.80 km.
Earthquake details:
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

Perbakti volcano (West Java): 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 9.00 km depth at 17 km distance SE from the volcano.
Earthquake details:
3.0 quake 9.9 km south of Cicurug, Kabupaten Sukabumi, Jawa Barat, Indonesia, May 21, 2026 11:56 am (GMT +7) (17 km SE)
All earthquakes at Perbakti

Prestahnukur volcano (Iceland): 13 earthquakes up to magnitude 1.9

Possible earthquake swarm: 13 earthquakes occurred near (under) the volcano during 11 hours, the last being recorded quake 8 hours ago. Hypocenter depths ranged between 21.20 and 0.60 km.
Earthquake details: (only 5 largest)
1.9 quake 15.2 km SSE of Húsafell May 20, 2026 08:25 pm (Universal Time) (11 km WSW)
1.4 quake 16.4 km NNW of Skjaldbreið May 21, 2026 01:49 am (Universal Time) (13 km WSW)
1.4 quake 15.1 km SSE of Húsafell May 20, 2026 08:19 pm (Universal Time) (11 km WSW)
1.3 quake Iceland: 15.1 km SSE of Húsafell May 20, 2026 10:07 pm (Reykjavik time) (9 km WSW)
1.3 quake 14.3 km SSE of Húsafell May 20, 2026 04:39 pm (Universal Time) (9 km WSW)
All earthquakes at Prestahnukur

Pulosari volcano (West Java): 2 earthquakes up to magnitude 2.6

2 earthquakes occurred near (under) the volcano during 39 minutes, the last being recorded quake 11 hours ago. Hypocenter depths ranged between 7.00 and 3.00 km.
Earthquake details:
2.6 quake 15 km west of Pandeglang, Kabupaten Pandeglang, Banten, Indonesia, May 21, 2026 06:48 am (GMT +7) (4 km NNW)
2.3 quake 9.5 km northwest of Pandeglang, Kabupaten Pandeglang, Banten, Indonesia, May 21, 2026 06:09 am (GMT +7) (10 km NE)
All earthquakes at Pulosari

Sangeang Api volcano (Lesser Sunda Islands): 16 earthquakes up to magnitude 2.9

Possible earthquake swarm: 16 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 9 hours ago. Hypocenter depths ranged between 16.00 and 3.00 km.
Earthquake details: (only 5 largest)
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, 16 km east of Pulau Sangeang Island, West Nusa Tenggara, Indonesia, May 21, 2026 01:30 am (GMT +8) (16 km E)
2.5 quake Flores Sea, 14 km east of Pulau Sangeang Island, West Nusa Tenggara, Indonesia, May 21, 2026 12:40 am (GMT +8) (14 km ENE)
2.5 quake Flores Sea, 17 km northeast of Pulau Sangeang Island, Indonesia, May 20, 2026 10:46 pm (GMT +8) (17 km NE)
All earthquakes at Sangeang Api

Sibualbuali volcano (Sumatra): magnitude 3.1 earthquake

A magnitude 3.1 earthquake occurred at the volcano 3 hours ago. The quake, which might be volcanic in origin, was located at a depth of 3.00 km depth at 14 km distance S from the volcano.
Earthquake details:
3.1 quake 6.5 km northwest of Padangsidempuan, Indonesia, May 21, 2026 02:59 pm (GMT +7) (14 km S)
All earthquakes at Sibualbuali

Stepovak Bay 4 volcano (Alaska Peninsula): 2 earthquakes up to magnitude 2.2

2 earthquakes occurred near (under) the volcano during 7 hours, the last being recorded quake 8 hours ago. Hypocenter depths ranged between 5.30 and 5.20 km.
Earthquake details:
2.2 quake 54 mi north of Sand Point, Aleutians East Borough, Alaska, United States, May 20, 2026 07:16 pm (GMT -8) (12 km N)
2.2 quake 50 mi northeast of Sand Point, Aleutians East Borough, Alaska, United States, May 20, 2026 12:01 pm (GMT -8) (3 km N)
All earthquakes at Stepovak Bay 4

Süphan Dağ volcano (Turkey): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 6 hours ago. The quake, which might be volcanic in origin, was located at a depth of 16.90 km depth at 7 km distance NW from the volcano.
Earthquake details:
2.1 quake 21 km north of Adilcevaz, Bitlis, Turkey, May 21, 2026 07:21 am (GMT +3) (7 km NW)
All earthquakes at Süphan Dağ

Vesuvius volcano (Italy): 4 earthquakes up to magnitude 3.0

4 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 10.00 and 0.18 km.
Earthquake details:
Reported seismic-like event (likely no quake): 14 km southeast of Naples, Napoli, Campania, Italy, May 21, 2026 08:43 am (GMT +2) (7 km SSW)
0.7 quake 6.3 km northeast of Torre del Greco, Napoli, Campania, Italy, May 20, 2026 02:14 pm (GMT +2) (0 km E)
0.5 quake 14 km east of Naples, Napoli, Campania, Italy, May 20, 2026 10:15 pm (GMT +2) (0 km E)
0.1 quake 2.6 km north of Torre del Greco, Napoli, Campania, Italy, May 20, 2026 07:57 pm (Universal Time) (4 km WSW)
All earthquakes at Vesuvius

White Island volcano (New Zealand): 2 earthquakes up to magnitude 2.6

2 earthquakes occurred near (under) the volcano during 5 hours, the last being recorded quake 16 hours ago. Hypocenter depths ranged between 5.00 and 5.00 km.
Earthquake details:
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)
All earthquakes at White Island
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/303046/Volcano-earthquake-report-for-Thursday-21-May-2026.html