Volcano earthquake report for Thursday, 22 May 2025

Quakes detected near: Abu (10 quakes between mag 0.1-1.0), Apaneca Range (1 quake mag 2.0), Apo (1 quake mag 3.0), Arayat (1 quake mag 3.0), Atacazo (1 quake mag 2.9), Atka (2 quakes between mag 0.7-1.2)
Biliran (1 quake mag 1.6), Brennisteinsfjöll (3 quakes between mag 1.0-1.2), Bulusan (1 quake mag 2.2), Cagua (1 quake mag 2.6), Campi Flegrei (Phlegrean Fields) (3 quakes between mag 0.1-3.0), Clear Lake (44 quakes between mag 0.1-1.9), Coso (3 quakes between mag 0.3-1.3), Eldey (5 quakes between mag 0.5-1.4), Etna (1 quake mag 1.7), Gareloi (1 quake mag 1.3), Grímsnes (5 quakes between mag 0.1-1.2), Hiuchi (9 quakes between mag 0.1-1.6), Hrómundartindur (11 quakes between mag 0.1-1.0), Kamen (1 quake mag 1.1), Kilauea (2 quakes between mag 1.9-2.0), Klyuchevskoy (34 quakes between mag 0.7-1.4), Kolumbo (17 quakes between mag 0.5-1.6), Kurikoma (4 quakes between mag 0.2-1.5), La Palma (2 quakes between mag 1.6-1.7), Ljósufjöll (11 quakes between mag 0.0-2.9), Maroa (1 quake mag 2.3), Mayotte Island (1 quake mag 2.0), Methana (1 quake mag 1.5), Okataina (Tarawera) (2 quakes between mag 1.8-2.4), Ontake-san (5 quakes between mag 0.1-1.0), Oshima (2 quakes between mag 0.9-2.7), Osore-yama (5 quakes between mag 0.1-2.5), Prestahnukur (2 quakes between mag 0.8-1.2), Santo Tomas (1 quake mag 1.8), Santorini (6 quakes between mag 0.7-2.0), Shiveluch (1 quake mag 1.3), Sousaki (7 quakes between mag 0.8-1.2), Takahara (1 quake mag 2.2), Tenerife (1 quake mag 1.6), Tjörnes Fracture Zone (3 quakes between mag 0.5-1.3), To-shima (6 quakes between mag 0.8-2.3), Turrialba (1 quake mag 3.0), Udina (2 quakes between mag 0.9-1.3) (updated 00h50)

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:

Apo volcano (Mindanao): magnitude 3.0 earthquake

A magnitude 3.0 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 SW from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 26 km northwest of Digos, Province of Davao del Sur, Davao, Philippines, May 21, 2025 08:18 pm (GMT +8) (7 km SW)
All earthquakes at Apo
Apo volcano (2938 m) on Mindanao forms the highest peak of the Philippines. Its volcanic history is not well known, but although there are no historic eruptions it is considered to be active.

The volcano has an extensive hydrothermal field with ongoing geothermal exploration. Small shallow earthquakes related to this activity are common.

Arayat volcano (Luzon Island): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 21 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 11 km distance W from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 7.3 km northeast of Angeles City, Philippines, May 21, 2025 11:20 am (GMT +8) (11 km W)
All earthquakes at Arayat

Atacazo volcano (Ecuador): magnitude 2.9 earthquake

A magnitude 2.9 earthquake occurred at the volcano 22 hours ago. The quake, which might be volcanic in origin, was located at a depth of 7.00 km depth at 13 km distance W from the volcano.
Earthquake details:
2.9 quake 26 km southwest of Quito, Provincia de Pichincha, Ecuador, May 20, 2025 09:44 pm (GMT -5) (13 km W)
All earthquakes at Atacazo

Bulusan volcano (Luzon Island): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 2 hours ago. The quake, which might be volcanic in origin, was located at a depth of 9.00 km depth at 11 km distance SSE from the volcano.
Earthquake details:
2.2 quake 7.7 km east of Irosin, Province of Sorsogon, Bicol, Philippines, May 22, 2025 06:31 am (GMT +8) (11 km SSE)
All earthquakes at Bulusan

Cagua volcano (Luzon Island): magnitude 2.6 earthquake

A magnitude 2.6 earthquake occurred at the volcano 5 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 9 km distance SSE from the volcano.
Earthquake details:
2.6 quake 21 km southeast of Gonzaga, Province of Cagayan, Cagayan Valley, Philippines, May 22, 2025 03:59 am (GMT +8) (9 km SSE)
All earthquakes at Cagua

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

3 earthquakes occurred near (under) the volcano during 17 hours, the last being recorded quake 1 hour 33 minutes ago. Hypocenter depths ranged between 10.00 and 1.00 km.
Earthquake details:
Reported seismic-like event (likely no quake): 0.1 km east of Naples, Napoli, Campania, Italy, May 22, 2025 01:16 am (GMT +2) (11 km ENE)
1.0 quake 4.5 km southeast of Pozzuoli, Napoli, Campania, Italy, May 21, 2025 06:17 pm (GMT +2) (0 km E)
0.1 quake 2.4 km southwest of Pianura, Napoli, Campania, Italy, May 21, 2025 05:49 am (Universal Time) (2 km NE)
All earthquakes at Campi Flegrei (Phlegrean Fields)

Clear Lake volcano (California): 44 earthquakes up to magnitude 1.9

Possible earthquake swarm: 44 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 5.69 and 1.12 km.
Earthquake details: (only 5 largest)
1.9 quake 13 mi southwest of Clearlake, Lake County, California, United States, May 21, 2025 01:57 am (GMT -7) (15 km S)
1.7 quake Sonoma County, 15 mi southwest of Clearlake, Lake County, California, United States, May 21, 2025 01:13 am (GMT -7) (18 km SSW)
1.4 quake Lake County, 28 mi north of Santa Rosa, Sonoma County, California, United States, May 21, 2025 12:37 pm (GMT -7) (15 km S)
1.4 quake Lake County, 28 mi north of Santa Rosa, Sonoma County, California, United States, May 20, 2025 06:23 pm (GMT -7) (15 km S)
1.3 quake Lake County, 28 mi north of Santa Rosa, Sonoma County, California, United States, May 21, 2025 01:58 am (GMT -7) (15 km S)
All earthquakes at Clear Lake

Hrómundartindur volcano (Iceland): 11 earthquakes up to magnitude 1.0

Possible earthquake swarm: 11 earthquakes occurred near (under) the volcano during 9 hours, the last being recorded quake 10 hours ago. Hypocenter depths ranged between 9.10 and 3.40 km.
Earthquake details: (only 5 largest)
1.0 quake 1.9 km E of Hrómundartindi May 21, 2025 08:37 am (Universal Time) (2 km ENE)
0.9 quake Iceland: 0.5 km NW of Hveradalir May 21, 2025 02:55 pm (Reykjavik time) (11 km WSW)
0.8 quake Iceland: 0.6 km WNW of Hveradalir May 21, 2025 03:14 pm (Reykjavik time) (12 km WSW)
0.8 quake 2.1 km SE of Hrómundartindi May 21, 2025 08:39 am (Universal Time) (2 km ESE)
0.7 quake Iceland: 0.7 km N of Hveradalir May 21, 2025 02:55 pm (Reykjavik time) (11 km WSW)
All earthquakes at Hrómundartindur

Klyuchevskoy volcano (Central Kamchatka Depression): 34 earthquakes up to magnitude 1.4

Possible earthquake swarm: 34 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 32.93 and 1.12 km.
Earthquake details: (only 5 largest)
1.4 quake 32 km southwest of Klyuchi, Ust-Kamchatsky District, Kamchatka, Russia, May 21, 2025 01:07 pm (Kamchatka time) (4 km WNW)
1.4 quake Ust'-Kamchatskiy Rayon, 33 km southwest of Klyuchi, Ust-Kamchatsky District, Kamchatka, Russia, May 21, 2025 02:22 pm (Kamchatka time) (4 km W)
1.4 quake 32 km southwest of Klyuchi, Ust-Kamchatsky District, Kamchatka, Russia, May 21, 2025 02:54 pm (Kamchatka time) (4 km WNW)
1.4 quake 32 km southwest of Klyuchi, Ust-Kamchatsky District, Kamchatka, Russia, May 21, 2025 03:23 pm (Kamchatka time) (4 km WNW)
1.3 quake 31 km southwest of Klyuchi, Ust-Kamchatsky District, Kamchatka, Russia, May 22, 2025 08:05 am (Kamchatka time) (4 km NW)
All earthquakes at Klyuchevskoy

Kolumbo volcano (Greece): 17 earthquakes up to magnitude 1.6

Possible earthquake swarm: 17 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 1 hour 16 minutes ago. Hypocenter depths ranged between 22.53 and 4.90 km.
Earthquake details: (only 5 largest)
1.6 quake Aegean Sea, 4.7 km north of Santorini Island, Greece, May 21, 2025 11:22 am (GMT +3) (8 km S)
1.6 quake Aegean Sea, 29 km southeast of Heraklia Island, Greece, May 21, 2025 05:00 am (GMT +3) (15 km NE)
1.4 quake Aegean Sea, 25 km northeast of Santorini Island, Greece, May 21, 2025 01:50 pm (GMT +3) (13 km NE)
1.3 quake Aegean Sea, 21 km northeast of Santorini Island, Greece, May 21, 2025 04:21 am (GMT +3) (9 km NE)
1.3 quake Santorini Isl. - S. Greece May 21, 2025 04:27 am (GMT +3) (15 km NE)
All earthquakes at Kolumbo

Ljósufjöll volcano (Iceland): 11 earthquakes up to magnitude 2.9

Possible earthquake swarm: 11 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 18 minutes ago. Hypocenter depths ranged between 20.40 and 3.30 km.
Earthquake details: (only 5 largest)
2.9 quake West, 74 km north of Reykjavik, Capital Region, Iceland, May 21, 2025 03:04 pm (Reykjavik time) (15 km ESE)
2.2 quake 28.7 km N of Borgarnes May 21, 2025 01:57 pm (Universal Time) (15 km ESE)
2.0 quake 29.0 km N of Borgarnes May 21, 2025 01:50 pm (Universal Time) (15 km ESE)
1.6 quake Iceland: 30.3 km N of Borgarnes May 21, 2025 03:36 pm (Reykjavik time) (16 km ESE)
0.9 quake Iceland: 35.3 km N of Borgarnes May 22, 2025 12:32 am (Reykjavik time) (15 km E)
All earthquakes at Ljósufjöll

Maroa volcano (New Zealand): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 21 hours ago. The quake, which might be volcanic in origin, was located at a depth of 4.30 km depth at 19 km distance SSE from the volcano.
Earthquake details:
2.3 quake 16 km northeast of Taupo, Waikato, New Zealand, May 21, 2025 04:15 pm (GMT +12) (19 km SSE)
All earthquakes at Maroa

Okataina (Tarawera) volcano (New Zealand): 2 earthquakes up to magnitude 2.4

2 earthquakes occurred near (under) the volcano during 8 hours, the last being recorded quake 1 hour 45 minutes ago. Hypocenter depths ranged between 24.50 and 4.70 km.
Earthquake details:
2.4 quake 21 km southeast of Rotorua, Bay of Plenty, New Zealand, May 22, 2025 02:38 am (GMT +12) (12 km SSW)
1.8 quake 28 km southwest of Whakatane, Bay of Plenty, New Zealand, May 22, 2025 11:04 am (GMT +12) (18 km ENE)
All earthquakes at Okataina (Tarawera)

Oshima volcano (Izu Islands): 2 earthquakes up to magnitude 2.7

2 earthquakes occurred near (under) the volcano during 8 hours, the last being recorded quake 13 hours ago. Hypocenter depths ranged between 20.70 and 3.20 km.
Earthquake details:
2.7 quake North Pacific Ocean, Tokyo, 49 km southwest of Tateyama, Chiba, Japan, May 21, 2025 08:33 pm (GMT +9) (12 km SE)
0.9 quake North Pacific Ocean, Tokyo, 57 km southeast of Ito, Shizuoka, Japan, May 21, 2025 12:45 pm (GMT +9) (19 km SSE)
All earthquakes at Oshima

Osore-yama volcano (Honshu): 5 earthquakes up to magnitude 2.5

5 earthquakes occurred near (under) the volcano during 17 hours, the last being recorded quake 1 hour 20 minutes ago. Hypocenter depths ranged between 10.80 and 8.50 km.
Earthquake details:
2.5 quake 20 km southwest of Ninohe, Iwate, Japan, May 22, 2025 03:27 am (GMT +9) (11 km S)
1.3 quake 48 km north of Morioka, Iwate, Japan, May 21, 2025 03:24 pm (GMT +9) (16 km SSE)
0.7 quake 48 km north of Morioka, Iwate, Japan, May 21, 2025 03:53 pm (GMT +9) (17 km SSE)
0.5 quake 21 km southwest of Ninohe, Iwate, Japan, May 22, 2025 08:30 am (GMT +9) (8 km SSW)
0.1 quake 20 km southwest of Ninohe, Iwate, Japan, May 22, 2025 04:08 am (GMT +9) (11 km S)
All earthquakes at Osore-yama

Takahara volcano (Honshu): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 7 hours ago. The quake, which might be volcanic in origin, was located at a depth of 6.50 km depth at 9 km distance WNW from the volcano.
Earthquake details:
2.2 quake 23 km north of Imaichi, Tochigi, Japan, May 22, 2025 02:37 am (GMT +9) (9 km WNW)
All earthquakes at Takahara

To-shima volcano (Izu Islands): 6 earthquakes up to magnitude 2.3

6 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 16.50 and 4.40 km.
Earthquake details: (only 5 largest)
2.3 quake North Pacific Ocean, Tokyo, 46 km east of Shimoda, Shizuoka, Japan, May 21, 2025 10:39 am (GMT +9) (13 km ENE)
1.5 quake North Pacific Ocean, Tokyo, 43 km east of Shimoda, Shizuoka, Japan, May 22, 2025 05:24 am (GMT +9) (9 km E)
1.3 quake North Pacific Ocean, Tokyo, 45 km east of Shimoda, Shizuoka, Japan, May 21, 2025 10:30 pm (GMT +9) (13 km ENE)
1.2 quake North Pacific Ocean, Tokyo, 43 km east of Shimoda, Shizuoka, Japan, May 22, 2025 02:48 am (GMT +9) (12 km ENE)
1.0 quake North Pacific Ocean, Tokyo, 48 km east of Shimoda, Shizuoka, Japan, May 22, 2025 04:19 am (GMT +9) (14 km E)
All earthquakes at To-shima

Turrialba volcano (Costa Rica): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 1 hour 24 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 12.00 km depth at 14 km distance E from the volcano.
Earthquake details:
3.0 quake 50 km east of San Jose, Provincia de San Jose, Costa Rica, May 21, 2025 05:26 pm (GMT -6) (14 km E)
All earthquakes at Turrialba
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/271947/Volcano-earthquake-report-for-Thursday-22-May-2025.html