Volcano earthquake report for Sunday, 21 Jun 2026
World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 21 Jun 2026 Number in brackets indicate nr of quakes.

Quakes detected near: Akuseki-jima (1 quake mag 2.7), Askja (4 quakes between mag 0.0-1.5), Balut (21 quakes between mag 1.6-4.2), Brennisteinsfjöll (11 quakes between mag 0.0-1.5), Campi Flegrei (Phlegrean Fields) (28 quakes between mag 0.1-1.1), Clear Lake (25 quakes between mag 0.2-1.5)
Curtis Island (1 quake mag 5.0), Douglas (2 quakes between mag 1.3-2.4), El Hierro (2 quakes between mag 1.4-1.8), Eldey (4 quakes between mag 0.2-1.6), Eyafjallajökull (2 quakes between mag 1.1-1.9), Hekla (3 quakes between mag 0.9-1.2), Hulubelu (1 quake mag 2.1), Jan Mayen (1 quake mag 1.9), Katla (9 quakes between mag 0.0-2.0), Katmai (1 quake mag 1.1), Kilauea (3 quakes between mag 2.0-3.1), Ljósufjöll (2 quakes between mag 1.5-2.0), Loihi (1 quake mag 1.7), Martin (1 quake mag 1.3), Matutum (1 quake mag 1.8), Muria (1 quake mag 2.1), Prestahnukur (54 quakes between mag 0.0-2.6), Ruapehu (1 quake mag 1.4), Stepovak Bay 2 (1 quake mag 2.2), Talakmau (1 quake mag 2.3), Tenerife (39 quakes between mag 0.3-1.4), Tindfjallajökull (2 quakes between mag 0.3-1.5), Tjörnes Fracture Zone (3 quakes between mag 0.9-1.6), Tungnafellsjökull (3 quakes between mag 0.0-1.0), Turrialba (1 quake mag 1.2), Usulután (1 quake mag 2.4) (updated 23h50)

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 2.7 earthquake

A magnitude 2.7 earthquake occurred at the volcano 1 hour 31 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 7 km distance S from the volcano.
Earthquake details:
2.7 quake East China Sea, Kagoshima-ken, 28 km southwest of Suwanose-jima Island, Japan, Jun 22, 2026 07:19 am (GMT +9) (7 km S)
All earthquakes at Akuseki-jima

Balut volcano (Mindanao): 21 earthquakes up to magnitude 4.2

Possible earthquake swarm: 21 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 44.00 and 1.00 km.
Earthquake details: (only 5 largest)
4.2 quake Celebes Sea, 23 km southwest of Sarangani Island, Philippines, Jun 22, 2026 04:02 am (Manila time) (13 km SSW)
3.7 quake Philippine Sea, 2.1 km north of Sarangani Island, Philippines, Jun 22, 2026 12:29 am (GMT +8) (12 km ENE)
2.9 quake Philippine Sea, 15 km northwest of Sarangani Island, Philippines, Jun 21, 2026 03:51 pm (GMT +8) (17 km N)
2.6 quake Philippine Sea, 28 km southeast of Sarangani Island, Philippines, Jun 22, 2026 12:08 am (GMT +8) (4 km ESE)
2.5 quake Celebes Sea, 23 km west of Sarangani Island, Philippines, Jun 21, 2026 11:25 am (GMT +8) (17 km NW)
All earthquakes at Balut

Brennisteinsfjöll volcano (Reykjanes Peninsula, Iceland): 11 earthquakes up to magnitude 1.5

Possible earthquake swarm: 11 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 1 hour 17 minutes ago. Hypocenter depths ranged between 9.70 and 0.00 km.
Earthquake details: (only 5 largest)
1.5 quake Iceland: 3.3 km SW of Bláfjallaskáli Jun 21, 2026 07:46 am (Reykjavik time) (8 km ENE)
0.8 quake Iceland: 5.8 km WSW of Bláfjallaskáli Jun 21, 2026 07:01 am (Reykjavik time) (6 km NE)
0.7 quake 4.3 km WSW of Bláfjallaskáli Jun 21, 2026 10:07 pm (Universal Time) (7 km NE)
0.2 quake Iceland: 4.9 km SE of Bláfjallaskáli Jun 21, 2026 10:33 pm (Reykjavik time) (12 km ENE)
0.2 quake Iceland: 2.8 km WNW of Raufarhólshellir Jun 21, 2026 04:48 am (Reykjavik time) (19 km E)
All earthquakes at Brennisteinsfjöll

Campi Flegrei (Phlegrean Fields) volcano (Italy): 28 earthquakes up to magnitude 1.1

Possible earthquake swarm: 28 earthquakes occurred near (under) the volcano during 16 hours, the last being recorded quake 1 hour 17 minutes ago. Hypocenter depths ranged between 3.78 and 0.18 km.
Earthquake details: (only 5 largest)
1.1 quake 4.3 km southeast of Pozzuoli, Napoli, Campania, Italy, Jun 22, 2026 12:20 am (GMT +2) (0 km S)
1.1 quake 4.2 km southeast of Pozzuoli, Napoli, Campania, Italy, Jun 21, 2026 05:23 pm (GMT +2) (0 km SSE)
0.8 quake 4.1 km southeast of Pozzuoli, Napoli, Campania, Italy, Jun 22, 2026 12:26 am (GMT +2) (1 km SW)
0.8 quake 4 km southeast of Pozzuoli, Napoli, Campania, Italy, Jun 22, 2026 12:23 am (GMT +2) (1 km SW)
0.6 quake 4.1 km southeast of Pozzuoli, Napoli, Campania, Italy, Jun 21, 2026 10:28 pm (Universal Time) (1 km SSW)
All earthquakes at Campi Flegrei (Phlegrean Fields)

Clear Lake volcano (California): 25 earthquakes up to magnitude 1.5

Possible earthquake swarm: 25 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 3.35 and 0.98 km.
Earthquake details: (only 5 largest)
1.5 quake 26 mi north of Santa Rosa, Sonoma County, California, United States, Jun 20, 2026 04:57 pm (GMT -7) (18 km S)
1.4 quake 29 mi north of Santa Rosa, Sonoma County, California, United States, Jun 20, 2026 08:20 pm (GMT -7) (15 km SSW)
1.1 quake 25 mi north of Santa Rosa, Sonoma County, California, United States, Jun 21, 2026 12:21 pm (GMT -7) (18 km S)
1.1 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Jun 21, 2026 02:33 pm (GMT -7) (17 km SSW)
1.0 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Jun 21, 2026 10:34 am (GMT -7) (18 km SSW)
All earthquakes at Clear Lake

Curtis Island volcano (Kermandec Islands): magnitude 5.0 earthquake

A magnitude 5.0 earthquake occurred at the volcano 35 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 3 km distance E from the volcano.
Earthquake details:
5.0 quake South Pacific Ocean, 153 km south of Raoul Island, New Zealand, Jun 22, 2026 11:14 am (Auckland time) (3 km E)
All earthquakes at Curtis Island

Douglas volcano (Alaska Peninsula): 2 earthquakes up to magnitude 2.4

2 earthquakes occurred near (under) the volcano during 3 minutes, the last being recorded quake 22 hours ago. Hypocenter depths ranged between 12.90 and 11.60 km.
Earthquake details:
2.4 quake Kenai Peninsula Borough, 82 mi northwest of Kodiak, Kodiak Island Borough, Alaska, United States, Jun 20, 2026 05:36 pm (GMT -8) (4 km SSE)
1.3 quake Kenai Peninsula Borough, 83 mi northwest of Kodiak, Kodiak Island Borough, Alaska, United States, Jun 20, 2026 05:39 pm (GMT -8) (3 km S)
All earthquakes at Douglas

Hulubelu volcano (Sumatra): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 12 hours ago. The quake, which might be volcanic in origin, was located at a depth of 4.00 km depth at 1 km distance N from the volcano.
Earthquake details:
2.1 quake Kabupaten Tanggamus, 77 km west of Bandar Lampung, Indonesia, Jun 21, 2026 07:10 pm (GMT +7) (1 km N)
All earthquakes at Hulubelu

Kilauea volcano (Hawai'i (Big Island)): 3 earthquakes up to magnitude 3.1

3 earthquakes occurred near (under) the volcano during 6 hours, the last being recorded quake 12 hours ago. Hypocenter depths ranged between 31.69 and 6.08 km.
Earthquake details:
3.1 quake 28 mi south of Hilo, Hawaii County, Hawaii, United States, Jun 20, 2026 07:55 pm (GMT -10) (12 km SE)
2.5 quake 37 mi southwest of Hilo, Hawaii County, Hawaii, United States, Jun 21, 2026 12:52 am (GMT -10) (19 km SW)
2.0 quake 10.5 mi north of Pāhala, Hawaii County, Hawaii, United States, Jun 21, 2026 01:44 am (GMT -10) (16 km WSW)
All earthquakes at Kilauea

Muria volcano (Central Java): 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 7 km distance SSW from the volcano.
Earthquake details:
2.1 quake 6.2 km north of Gebog, Kabupaten Kudus, Provinsi Jawa Tengah, Indonesia, Jun 21, 2026 06:12 pm (GMT +7) (7 km SSW)
All earthquakes at Muria

Prestahnukur volcano (Iceland): 54 earthquakes up to magnitude 2.6

Possible earthquake swarm: 54 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 18.80 and 0.00 km.
Earthquake details: (only 5 largest)
2.6 quake 15.0 km SSE of Húsafell Jun 21, 2026 07:46 am (Universal Time) (12 km WSW)
1.9 quake Iceland: 14.9 km SSE of Húsafell Jun 21, 2026 06:59 pm (Reykjavik time) (11 km WSW)
1.9 quake 14.8 km SSE of Húsafell Jun 21, 2026 12:46 pm (Universal Time) (12 km WSW)
1.8 quake 15.2 km SSE of Húsafell Jun 21, 2026 12:56 pm (Universal Time) (12 km WSW)
1.7 quake 15.2 km SSE of Húsafell Jun 21, 2026 02:44 am (Universal Time) (11 km WSW)
All earthquakes at Prestahnukur

Stepovak Bay 2 volcano (Alaska Peninsula): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 17 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.20 km depth at 7 km distance ESE from the volcano.
Earthquake details:
2.2 quake 45 mi northeast of Sand Point, Aleutians East Borough, Alaska, United States, Jun 20, 2026 11:06 pm (GMT -8) (7 km ESE)
All earthquakes at Stepovak Bay 2

Talakmau volcano (Sumatra): 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 5.00 km depth at 8 km distance N from the volcano.
Earthquake details:
2.3 quake Kabupaten Pasaman Barat, 66 km northwest of Bukittinggi, Indonesia, Jun 21, 2026 02:15 pm (GMT +7) (8 km N)
All earthquakes at Talakmau

Tenerife volcano (Canary Islands): 39 earthquakes up to magnitude 1.4

Possible earthquake swarm: 39 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 24.00 and 7.00 km.
Earthquake details: (only 5 largest)
1.4 quake 14 km north of Arona, Santa Cruz de Tenerife, Canary Islands, Spain, Jun 21, 2026 06:51 pm (GMT +1) (5 km SSW)
1.2 quake 11 km southwest of Realejo Alto, Santa Cruz de Tenerife, Canary Islands, Spain, Jun 21, 2026 06:51 pm (GMT +1) (1 km N)
1.1 quake 16 km north of Arona, Santa Cruz de Tenerife, Canary Islands, Spain, Jun 21, 2026 11:01 am (GMT +1) (5 km SW)
1.1 quake 16 km north of Arona, Santa Cruz de Tenerife, Canary Islands, Spain, Jun 21, 2026 04:12 am (GMT +1) (5 km SW)
1.1 quake 18 km north of Arona, Santa Cruz de Tenerife, Canary Islands, Spain, Jun 21, 2026 06:52 pm (GMT +1) (2 km S)
All earthquakes at Tenerife

Unnamed 3.5°S/24.5°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 0 km distance W from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 11 km southwest of Fortaleza, Fortaleza, Ceara, Brazil, Jun 21, 2026 04:25 am (GMT -3) (0 km W)
All earthquakes at Unnamed 3.5°S/24.5°W

Usulután volcano (El Salvador): magnitude 2.4 earthquake

A magnitude 2.4 earthquake occurred at the volcano 3 hours ago. The quake, which might be volcanic in origin, was located at a depth of 15.00 km depth at 12 km distance SE from the volcano.
Earthquake details:
2.4 quake 5.5 km east of Usulutan, Departamento de Usulutan, El Salvador, Jun 21, 2026 02:53 pm (GMT -6) (12 km SE)
All earthquakes at Usulután
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/317339/Volcano-earthquake-report-for-Sunday-21-Jun-2026.html