Volcano earthquake report for Wednesday, 21 Oct 2020

Wed, 21 Oct 2020, 23:50
23:50 PM | BY: EARTHQUAKEMONITOR
World map showing volcanoes with shallow (less than 20 km) earthquakes within 20 km radius  during the past 24 hours on 21 Oct 2020 Number in brackets indicate nr of quakes.
World map showing volcanoes with shallow (less than 20 km) earthquakes within 20 km radius during the past 24 hours on 21 Oct 2020 Number in brackets indicate nr of quakes.
Quakes detected near: Akyarlar (1 quake mag 1.8), Brennisteinsfjöll (43 quakes between mag 0.1-2.1), Buzzard Creek (1 quake mag 1.8), Campi Flegrei (Phlegrean Fields) (1 quake mag 1.3), Clear Lake (21 quakes between mag 0.2-1.6), Coso (11 quakes between mag 0.1-1.7)
Eldey (3 quakes between mag 0.3-1.2), Hengill (1 quake mag 1.1), Hrómundartindur (18 quakes between mag 0.2-2.0), Katla (3 quakes between mag 0.6-1.4), Kilauea (3 quakes between mag 1.1-2.2), Krísuvík (476 quakes between mag 0.1-3.8), Miravalles (4 quakes between mag 2.7-3.2), Mount St. Helens (2 quakes between mag 0.3-1.2), Moyuta (3 quakes between mag 1.4-2.6), Nisyros (1 quake mag 1.8), Prestahnukur (1 quake mag 1.6), Reykjanes (115 quakes between mag 0.1-2.4), Tjörnes Fracture Zone (3 quakes between mag 0.9-1.3) (updated 23h50)

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:




Brennisteinsfjöll volcano (Iceland): 43 earthquakes up to magnitude 2.1

Possible earthquake swarm: 43 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 17.2 and 0.7 km.
Earthquake details: (only 5 largest)
2.1 quake: 11.1 Km S of Bláfjallaskáli, Iceland, 21 Oct 2020 04:02 (9 km ESE)
1.9 quake: 5.5 Km SE of Helgafell, Iceland, 21 Oct 2020 00:24 (7 km NNE)
1.9 quake: 8.0 Km ENE of Krýsuvík, Iceland, 21 Oct 2020 13:06 (4 km W)
1.6 quake: 7.7 Km E of Krýsuvík, Iceland, 21 Oct 2020 02:18 (4 km WSW)
1.5 quake: 5.3 Km NE of Krýsuvík, Iceland, 21 Oct 2020 01:50 (6 km W)
All earthquakes at Brennisteinsfjöll

Clear Lake volcano (California): 21 earthquakes up to magnitude 1.6

Possible earthquake swarm: 21 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 43 minutes ago. Hypocenter depths ranged between 3.0 and 0.3 km.
Earthquake details: (only 5 largest)
1.6 quake: 10km WNW of The Geysers, CA, USA, 21 Oct 2020 09:08 (18 km SSW)
1.6 quake: 5km WNW of Cobb, CA, USA, 21 Oct 2020 09:41 (15 km S)
1.4 quake: 6km NW of The Geysers, CA, USA, 21 Oct 2020 23:07 (17 km S)
1.3 quake: 3km W of Cobb, CA, USA, 21 Oct 2020 21:26 (16 km S)
1.3 quake: 6km WNW of Cobb, CA, USA, 21 Oct 2020 09:39 (15 km S)
All earthquakes at Clear Lake

Coso volcano (California): 11 earthquakes up to magnitude 1.7

Possible earthquake swarm: 11 earthquakes occurred near (under) the volcano during 11 hours, the last being recorded quake 10 hours ago. Hypocenter depths ranged between 8.9 and 2.0 km.
Earthquake details: (only 5 largest)
1.7 quake: 10km NNE of Coso Junction, CA, USA, 21 Oct 2020 13:35 (14 km NW)
1.5 quake: 10km NE of Coso Junction, CA, USA, 21 Oct 2020 05:04 (11 km NNW)
0.8 quake: 10km NE of Coso Junction, CA, USA, 21 Oct 2020 13:01 (11 km NNW)
0.8 quake: 13km E of Coso Junction, CA, USA, 21 Oct 2020 03:22 (2 km NE)
0.7 quake: 16km E of Little Lake, CA, USA, 21 Oct 2020 14:05 (15 km SSE)
All earthquakes at Coso

Hrómundartindur volcano (Iceland): 18 earthquakes up to magnitude 2.0

Possible earthquake swarm: 18 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 8.7 and 0.5 km.
Earthquake details: (only 5 largest)
2.0 quake: 2.4 Km N of Hellisheiðarvirkjun, Iceland, 21 Oct 2020 04:01 (9 km W)
1.5 quake: 2.3 Km N of Hellisheiðarvirkjun, Iceland, 21 Oct 2020 04:01 (10 km W)
1.5 quake: 1.7 Km NNW of Skálafell, Iceland, 21 Oct 2020 19:08 (10 km SW)
1.4 quake: 2.1 Km WNW of Raufarhólshellir, Iceland, 21 Oct 2020 06:26 (18 km SW)
1.1 quake: 2.2 Km NNW of Skálafell, Iceland, 21 Oct 2020 19:09 (10 km SW)
All earthquakes at Hrómundartindur

Kilauea volcano (Hawai'i (Big Island)): 3 earthquakes up to magnitude 2.2

3 earthquakes occurred near (under) the volcano during 17 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 7.4 and 0.6 km.
Earthquake details:
2.2 quake: 13 Km S of Fern Forest, Hawaii, USA, 21 Oct 2020 03:29 (16 km ESE)
1.9 quake: 11 Km NNE of Pāhala, Hawaii, USA, 21 Oct 2020 20:28 (19 km SW)
1.1 quake: 25 Km W of Volcano, Hawaii, USA, 21 Oct 2020 11:14 (19 km W)
All earthquakes at Kilauea

Krísuvík volcano (Iceland): 476 earthquakes up to magnitude 3.8

Possible earthquake swarm: 476 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 43 minutes ago. Hypocenter depths ranged between 15.5 and 0.1 km.
Earthquake details: (only 5 largest)
3.8 quake: 1.1 Km SW of Fagradalsfjall, Iceland, 21 Oct 2020 06:23 (10 km WSW)
3.7 quake: 1.0 Km SW of Fagradalsfjall, Iceland, 21 Oct 2020 06:05 (10 km WSW)
3.3 quake: 5.8 Km N of Krýsuvík, Iceland, 21 Oct 2020 12:30 (3 km ENE)
3.3 quake: 3.8 Km NE of Krýsuvík, Iceland, 21 Oct 2020 00:22 (4 km ESE)
3.1 quake: 1.1 Km W of Fagradalsfjall, Iceland, 21 Oct 2020 19:34 (10 km WSW)
All earthquakes at Krísuvík

Miravalles volcano (Costa Rica): 4 earthquakes up to magnitude 3.2

4 earthquakes occurred near (under) the volcano during 1 hour 36 minutes, the last being recorded quake 12 hours ago. Hypocenter depths ranged between 9.0 and 5.0 km.
Earthquake details:
3.2 quake: 27 Km ENE of Liberia, Costa Rica, 21 Oct 2020 12:00 (8 km SW)
3.0 quake: 2 Km Al Este De Mogote, Bagaces., Costa Rica, 21 Oct 2020 10:27 (8 km SW)
2.7 quake: 3 Km Al Norte De Fortuna, Bagaces., Costa Rica, 21 Oct 2020 11:47 (7 km SW)
2.7 quake: 3 Km Al Este De Mogote, Bagaces., Costa Rica, 21 Oct 2020 10:25 (7 km SW)
All earthquakes at Miravalles

Moyuta volcano (Guatemala): 3 earthquakes up to magnitude 2.6

3 earthquakes occurred near (under) the volcano during 4 hours, the last being recorded quake 17 hours ago. Hypocenter depths ranged between 7.0 and 4.0 km.
Earthquake details:
2.6 quake: 28 Km Al Noreste De Las Brisas, Guatemala, 21 Oct 2020 06:57 (2 km SSE)
2.2 quake: 26 Km Al Oeste De Ahuachapan, El Salvador, Guatemala, 21 Oct 2020 03:00 (5 km SSE)
1.4 quake: 26 Km Al Noroeste De Ahuachapan, El Salvador, Guatemala, 21 Oct 2020 03:03 (4 km ESE)
All earthquakes at Moyuta

Reykjanes volcano (Iceland): 115 earthquakes up to magnitude 2.4

Possible earthquake swarm: 115 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 1 hour 49 minutes ago. Hypocenter depths ranged between 13.6 and 0.2 km.
Earthquake details: (only 5 largest)
2.4 quake: 1.5 Km WSW of Fagradalsfjall, Iceland, 21 Oct 2020 09:50 (11 km E)
2.4 quake: 2.5 Km WSW of Fagradalsfjall, Iceland, 21 Oct 2020 12:11 (10 km E)
2.2 quake: 1.7 Km WSW of Fagradalsfjall, Iceland, 21 Oct 2020 17:43 (11 km E)
2.0 quake: 6.6 Km NW of Grindavík, Iceland, 21 Oct 2020 02:32 (2 km SSW)
2.0 quake: 1.8 Km SW of Fagradalsfjall, Iceland, 21 Oct 2020 12:46 (11 km E)
All earthquakes at Reykjanes

Previous news

Tue, 20 Oct 2020, 23:50
World map showing volcanoes with shallow (less than 20 km) earthquakes within 20 km radius  during the past 24 hours on 20 Oct 2020 Number in brackets indicate nr of quakes.
Quakes detected near: Akyarlar (2 quakes between mag 0.9-1.6), Askja (4 quakes between mag 0.1-1.4), Bardarbunga (1 quake mag 1.6), Bibinoi (1 quake mag 3.5), Brennisteinsfjöll (41 quakes between mag 0.1-2.2), Buzzard Creek (1 quake mag 1.8) ... Read all
Mon, 19 Oct 2020, 23:50
World map showing volcanoes with shallow (less than 20 km) earthquakes within 20 km radius  during the past 24 hours on 19 Oct 2020 Number in brackets indicate nr of quakes.
Quakes detected near: Bobrof (1 quake mag 1.7), Clear Lake (21 quakes between mag 0.3-2.2), Coso (10 quakes between mag 0.6-1.2), Denison (1 quake mag 1.3), Dieng (1 quake mag 2.9), El Hierro (1 quake mag 1.8) ... Read all
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