Quakes detected near: Akyarlar (1 quake mag 1.4), Askja (3 quakes between mag 0.6-2.1), Brennisteinsfjöll (2 quakes between mag 0.9-1.0), Clear Lake (18 quakes between mag 0.4-2.2), Colima (1 quake mag 4.0), Coso (5 quakes between mag 0.5-1.0)
Etna (1 quake mag 1.5), Ilopango (1 quake mag 1.6), Irazu (1 quake mag 3.0), Kilauea (11 quakes between mag 1.8-2.5), Krísuvík (3 quakes between mag 0.1-1.1), Mono Lake (1 quake mag 1.2), Mount Rainier (2 quakes between mag 0.5-1.6), Nisyros (3 quakes between mag 2.0-2.3), Paricutín (Michoacán-Guanajuato) (3 quakes between mag 3.5-3.6), Redoubt (1 quake mag 1.2), Ruapehu (1 quake mag 1.0), San Vicente (1 quake mag 1.9), Takawangha (2 quakes between mag 0.2-4.3), Taupo (1 quake mag 2.0) (updated 19h50)
Note: Earthquakes within 20 km from and at depths less than 20 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:
Askja volcano (Iceland): 3 earthquakes up to magnitude 2.1
3 earthquakes occurred near (under) the volcano during 10 hours, the last being recorded quake 9 hours ago. Hypocenter depths ranged between 10.2 and 3.8 km.Earthquake details:
2.1 quake Iceland: 3.4 Km WSW of Dreki 21 July 2021 11:04 GMT (4 km E)0.8 quake Iceland: 3.8 Km W of Dreki 21 July 2021 00:42 GMT (3 km ENE)0.6 quake Iceland: 8.3 Km WNW of Dreki 21 July 2021 00:42 GMT (4 km NNW)All earthquakes at Askja
Clear Lake volcano (California): 18 earthquakes up to magnitude 2.2
Possible earthquake swarm: 18 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 23 minutes ago. Hypocenter depths ranged between 3.6 and 0.1 km.Earthquake details: (only 5 largest)
2.2 quake 2km SW of Cobb, CA, 21 July 2021 10:05 GMT (18 km S)1.7 quake 6km WNW of The Geysers, CA, 21 July 2021 09:14 GMT (19 km S)1.5 quake 4km NW of The Geysers, CA, 21 July 2021 08:45 GMT (18 km S)1.1 quake 7km NW of The Geysers, CA, 21 July 2021 18:58 GMT (17 km SSW)1.0 quake 7km NW of The Geysers, CA, 20 July 2021 21:22 GMT (18 km SSW)All earthquakes at Clear Lake
Colima volcano (Western & Central Mexico): magnitude 4.0 earthquake
A magnitude 4.0 earthquake occurred at the volcano 22 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.0 km depth at 5 km distance NW from the volcano.Earthquake details:
4.0 quake 34 km north of Colima, Mexico, 2021-07-20 17:15:35 (Hora de México) (5 km NW)All earthquakes at Colima
Irazu volcano (Costa Rica): magnitude 3.0 earthquake
A magnitude 3.0 earthquake occurred at the volcano 10 hours ago. The quake, which might be volcanic in origin, was located at a depth of 11.0 km depth at 18 km distance SW from the volcano.Earthquake details:
3.0 quake Cartago, Provincia de Cartago, 13 km southeast of San Jose, Costa Rica, 2021-07-21 04:18:50 (18 km SW)All earthquakes at Irazu
Kilauea volcano (Hawai'i (Big Island)): 11 earthquakes up to magnitude 2.5
Possible earthquake swarm: 11 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 12 minutes ago. Hypocenter depths ranged between 6.5 and 0.7 km.Earthquake details: (only 5 largest)
2.5 quake 6 Km S of Volcano, Hawaii, 21 July 2021 04:13 GMT (6 km ESE)2.3 quake 5 Km SSW of Volcano, Hawaii, 21 July 2021 01:48 GMT (4 km ESE)2.2 quake 10 Km SE of Volcano, Hawaii, 21 July 2021 13:04 GMT (13 km ESE)2.1 quake 16 Km NNE of Pāhala, Hawaii, 21 July 2021 15:14 GMT (16 km WSW)2.0 quake 5 Km SW of Volcano, Hawaii, 21 July 2021 19:37 GMT (1 km E)All earthquakes at Kilauea
Nisyros volcano (Greece): 3 earthquakes up to magnitude 2.3
3 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 14.7 and 5.4 km.Earthquake details:
2.3 quake Aegean Sea, 58 km south of Kos Town, Dodecanese, South Aegean, Greece, 20 July 2021 20:52 GMT (19 km S)2.1 quake Aegean Sea, 54 km south of Kos Town, Dodecanese, South Aegean, Greece, 21 July 2021 15:03 GMT (18 km S)2.0 quake Aegean Sea, 88 km west of Rhodes, Dodecanese, South Aegean, Greece, 21 July 2021 07:11 GMT (19 km SSE)All earthquakes at Nisyros
Paricutín (Michoacán-Guanajuato) volcano (Western & Central Mexico): 3 earthquakes up to magnitude 3.6
3 earthquakes occurred near (under) the volcano during 3 hours, the last being recorded quake 10 hours ago. Hypocenter depths ranged between 13.0 and 9.0 km.Earthquake details:
3.6 quake 25 km northwest of Uruapan, Michoacan, Mexico, 2021-07-21 03:25:16 (Hora de México) (18 km NE)3.5 quake Nuevo Parangaricutiro, 18 km west of Uruapan, Michoacan, Mexico, 2021-07-21 01:57:23 (Hora de México) (4 km SE)3.5 quake 22 km northwest of Uruapan, Michoacan, Mexico, 2021-07-21 04:55:19 (Hora de México) (16 km NE)All earthquakes at Paricutín (Michoacán-Guanajuato)
Takawangha volcano (Aleutian Islands): 2 earthquakes up to magnitude 4.3
2 earthquakes occurred near (under) the volcano during 14 hours, the last being recorded quake 9 hours ago. Hypocenter depths ranged between 2.6 and 1.8 km.Earthquake details:
4.3 quake 55 mi west of adak alaska, Aleutians West, Alaska, USA, 21 Jul 2:03 am (GMT -9) (10 km SE)0.2 quake 81 Km W of Adak, Alaska, 20 July 2021 21:19 GMT (13 km E)All earthquakes at Takawangha
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/135952/Volcano-earthquake-report-for-Wednesday-21-Jul-2021.html