Volcano earthquake report for Monday, 12 Apr 2021

lun., 12 avril 2021, 23:50
23:50 PM | AUTEUR : EARTHQUAKEMONITOR
World map showing volcanoes with shallow (less than 20 km) earthquakes within 20 km radius  during the past 24 hours on 12 Apr 2021 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 12 Apr 2021 Number in brackets indicate nr of quakes.
Quakes detected near: Akyarlar (1 quake mag 2.0), Askja (2 quakes between mag 0.5-2.0), Bardarbunga (17 quakes between mag 0.2-1.0), Cheb Basin volcanic area (1 quake mag 2.2), Clear Lake (20 quakes between mag 0.1-1.9), Coso (7 quakes between mag 0.6-1.4)
Eldey (2 quakes between mag 0.6-1.4), Fagradalsfjall (2 quakes between mag 1.0-1.1), Hengill (1 quake mag 1.2), Herdubreid (11 quakes between mag 0.2-1.0), Hrómundartindur (6 quakes between mag 0.3-1.8), Katla (3 quakes between mag 0.2-1.1), Kolumbo (2 quakes between mag 2.5-2.5), Krísuvík (14 quakes between mag 0.1-3.5), Kverkfjöll (4 quakes between mag 0.2-1.0), Lassen (2 quakes between mag 0.3-2.3), Long Valley (2 quakes between mag 0.5-1.0), Mauna Loa (17 quakes between mag 0.7-1.5), Mayotte Island (1 quake mag 1.4), Nisyros (6 quakes between mag 1.5-3.2), Reykjanes (9 quakes between mag 0.1-1.4), Salton Buttes (1 quake mag 1.4), San Cristobal (1 quake mag 2.2), Santorini (1 quake mag 2.5), Tenerife (2 quakes between mag 1.1-1.1), Tjörnes Fracture Zone (6 quakes between mag 0.5-2.1), Vesuvius (1 quake mag 1.8) (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:




Bardarbunga volcano (Iceland): 17 earthquakes up to magnitude 1.0

Possible earthquake swarm: 17 earthquakes occurred near (under) the volcano during 5 hours, the last being recorded quake 9 hours ago. Hypocenter depths ranged between 19.8 and 4.1 km.
Earthquake details: (only 5 largest)
1.0 quake 16.6 Km ESE of Bárðarbunga, Iceland, 12 April 2021 14:28 GMT (16 km ESE)
1.0 quake 19.1 Km ESE of Bárðarbunga, Iceland, 12 April 2021 14:26 GMT (19 km E)
0.9 quake 21.1 Km NNE of Grímsfjall, Iceland, 12 April 2021 09:22 GMT (19 km ESE)
0.6 quake 17.7 Km ESE of Bárðarbunga, Iceland, 12 April 2021 09:27 GMT (18 km ESE)
0.5 quake 17.2 Km ESE of Bárðarbunga, Iceland, 12 April 2021 14:27 GMT (17 km ESE)
All earthquakes at Bardarbunga

Cheb Basin volcanic area volcano (Czechia): magnitude 2.2 earthquake

A magnitude 2.2 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 10 km distance NNW from the volcano.
Earthquake details:
2.2 quake 4.1 km southwest of Cheb, Karlovarský kraj, Czechia, 12 April 2021 02:01 GMT (10 km NNW)
All earthquakes at Cheb Basin volcanic area

Clear Lake volcano (California): 20 earthquakes up to magnitude 1.9

Possible earthquake swarm: 20 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 3.3 and 0.7 km.
Earthquake details: (only 5 largest)
1.9 quake 6km WNW of The Geysers, CA, USA, 12 April 2021 08:08 GMT (19 km SSW)
1.8 quake 8km NW of The Geysers, CA, USA, 12 April 2021 04:30 GMT (16 km SSW)
1.2 quake 8km NW of The Geysers, CA, USA, 12 April 2021 18:37 GMT (16 km SSW)
1.2 quake 5km WNW of Cobb, CA, USA, 12 April 2021 01:03 GMT (15 km S)
1.1 quake 2km SW of Cobb, CA, USA, 12 April 2021 08:00 GMT (18 km S)
All earthquakes at Clear Lake

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

Possible earthquake swarm: 11 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 1 hour 20 minutes ago. Hypocenter depths ranged between 13.2 and 3.1 km.
Earthquake details: (only 5 largest)
1.0 quake 3.3 Km WNW of Herðubreið, Iceland, 12 April 2021 07:35 GMT (3 km W)
1.0 quake 4.5 Km NNW of Herðubreið, Iceland, 12 April 2021 22:24 GMT (4 km NNW)
0.9 quake 4.4 Km NNW of Herðubreið, Iceland, 12 April 2021 22:00 GMT (4 km NNW)
0.8 quake 4.2 Km NNW of Herðubreið, Iceland, 12 April 2021 22:20 GMT (4 km NNW)
0.7 quake 3.4 Km NNW of Herðubreið, Iceland, 12 April 2021 22:21 GMT (3 km NW)
All earthquakes at Herdubreid

Kolumbo volcano (Greece): 2 earthquakes up to magnitude 2.5

2 earthquakes occurred near (under) the volcano during 1 hour 41 minutes, the last being recorded quake 13 hours ago. Hypocenter depths ranged between 12.7 and 12.7 km.
Earthquake details:
2.5 quake Aegean Sea, 16 km northeast of Fira, Nomos Kykladon, South Aegean, Greece, 12 April 2021 10:57 GMT (5 km E)
2.5 quake Aegean Sea, 18 km northeast of Fira, Nomos Kykladon, South Aegean, Greece, 12 April 2021 09:16 GMT (7 km ENE)
All earthquakes at Kolumbo

Krísuvík volcano (Reykjanes Peninsula, Iceland): 14 earthquakes up to magnitude 3.5

Possible earthquake swarm: 14 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 7.4 and 1.1 km.
Earthquake details: (only 5 largest)
3.5 quake 3.9 Km SE of Keilir, Iceland, 12 April 2021 03:26 GMT (1 km SSW)
1.4 quake 2.3 Km SSW of Keilir, Iceland, 12 April 2021 00:06 GMT (5 km W)
1.2 quake 2.7 Km E of Keilir, Iceland, 12 April 2021 02:10 GMT (1 km NW)
1.0 quake 5.5 Km N of Krýsuvík, Iceland, 12 April 2021 09:11 GMT (2 km ENE)
1.0 quake 2.6 Km ENE of Keilir, Iceland, 12 April 2021 07:22 GMT (2 km NNW)
All earthquakes at Krísuvík

Lassen volcano (California): 2 earthquakes up to magnitude 2.3

2 earthquakes occurred near (under) the volcano during 4 hours, the last being recorded quake 20 hours ago. Hypocenter depths ranged between 2.7 and 2.5 km.
Earthquake details:
2.3 quake 9km ENE of Viola, CA, USA, 12 April 2021 03:30 GMT (9 km NW)
0.3 quake 12km N of Mineral, CA, USA, 11 April 2021 23:59 GMT (5 km SW)
All earthquakes at Lassen

Mauna Loa volcano (Hawai'i (Big Island)): 17 earthquakes up to magnitude 1.5

Possible earthquake swarm: 17 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 10.1 and 2.4 km.
Earthquake details: (only 5 largest)
1.5 quake Island of Hawaii, Hawaii, USA, 12 April 2021 04:40 GMT (17 km W)
1.2 quake 24 Km WNW of Volcano, Hawaii, USA, 12 April 2021 02:57 GMT (14 km E)
1.1 quake 24 Km N of Pāhala, Hawaii, USA, 12 April 2021 16:43 GMT (16 km ESE)
1.0 quake 24 Km N of Pāhala, Hawaii, USA, 12 April 2021 15:45 GMT (16 km ESE)
1.0 quake 21 Km ENE of Honaunau-Napoopoo, Hawaii, USA, 12 April 2021 11:16 GMT (12 km NW)
All earthquakes at Mauna Loa

Nisyros volcano (Greece): 6 earthquakes up to magnitude 3.2

6 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 1 hour 58 minutes ago. Hypocenter depths ranged between 16.0 and 3.9 km.
Earthquake details: (only 5 largest)
3.2 quake Aegean Sea, 10.8 km northwest of Tilos Island, Dodecanese, South Aegean, Greece, 12 April 2021 18:44 GMT (14 km SE)
2.7 quake Aegean Sea, 10.8 km west of Tilos Island, Dodecanese, South Aegean, Greece, 12 April 2021 00:46 GMT (19 km SSE)
2.2 quake Aegean Sea, 18 km west of Tilos Island, Dodecanese, South Aegean, Greece, 12 April 2021 01:01 GMT (16 km S)
2.1 quake Aegean Sea, 21 km west of Tilos Island, Dodecanese, South Aegean, Greece, 12 April 2021 07:32 GMT (16 km S)
1.8 quake Aegean Sea, 8.3 km west of Tilos Island, Dodecanese, South Aegean, Greece, 12 April 2021 19:15 GMT (17 km SE)
All earthquakes at Nisyros

San Cristobal volcano (Nicaragua): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 1 hour 48 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 6.0 km depth at 4 km distance ESE from the volcano.
Earthquake details:
2.2 quake 19 km east of Chinandega, Nicaragua, 2021-04-12 16:01:59 (4 km ESE)
All earthquakes at San Cristobal

Santorini volcano (Greece): magnitude 2.5 earthquake

A magnitude 2.5 earthquake occurred at the volcano 13 hours ago. The quake, which might be volcanic in origin, was located at a depth of 13.0 km depth at 15 km distance NE from the volcano.
Earthquake details:
2.5 quake Aegean Sea, 16 km northeast of Fira, Nomos Kykladon, South Aegean, Greece, 12 April 2021 11:06 GMT (15 km NE)
All earthquakes at Santorini

Tjörnes Fracture Zone volcano (Iceland): 6 earthquakes up to magnitude 2.1

6 earthquakes occurred near (under) the volcano during 13 hours, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 10.0 and 1.1 km.
Earthquake details: (only 5 largest)
2.1 quake 9.3 Km W of Kópasker, Iceland, 12 April 2021 16:14 GMT (18 km E)
1.4 quake 24.0 Km WNW of Kópasker, Iceland, 12 April 2021 17:44 GMT (8 km NE)
1.4 quake 9.9 Km WSW of Kópasker, Iceland, 12 April 2021 16:04 GMT (19 km E)
1.1 quake 16.2 Km W of Kópasker, Iceland, 12 April 2021 05:05 GMT (13 km ENE)
0.9 quake 10.5 Km W of Kópasker, Iceland, 12 April 2021 17:52 GMT (19 km E)
All earthquakes at Tjörnes Fracture Zone

Actualités précédentes

dim., 11 avril 2021, 23:50
World map showing volcanoes with shallow (less than 20 km) earthquakes within 20 km radius  during the past 24 hours on 11 Apr 2021 Number in brackets indicate nr of quakes.
Quakes detected near: Clear Lake (24 quakes between mag 0.3-2.7), Coso (11 quakes between mag 0.8-2.4), Herdubreid (3 quakes between mag 0.1-1.4), Hrómundartindur (10 quakes between mag 0.4-1.0), Katla (10 quakes between mag 0.2-2.0), Krafla (2 quakes between mag 0.4-1.2) ... Read all
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