Volcano earthquake report for Saturday, 2 Jan 2021
World map showing volcanoes with shallow (less than 20 km) earthquakes within 20 km radius during the past 24 hours on 2 Jan 2021 Number in brackets indicate nr of quakes.

Quakes detected near: Askja (3 quakes between mag 0.2-1.0), Bardarbunga (2 quakes between mag 1.2-1.9), Campi Flegrei (Phlegrean Fields) (2 quakes between mag 1.0-1.7), Clear Lake (15 quakes between mag 0.1-1.0), Coso (12 quakes between mag 0.5-1.5), Eldey (2 quakes between mag 0.9-1.4)
Etna (7 quakes between mag 1.1-2.2), Katla (4 quakes between mag 0.2-1.0), Kilauea (7 quakes between mag 0.8-2.0), Krísuvík (6 quakes between mag 0.2-1.7), Laguna Aramuaca (1 quake mag 2.7), Long Valley (2 quakes between mag 0.3-1.5), Mageik (1 quake mag 1.0), Mauna Loa (2 quakes between mag 1.3-2.3), Methana (1 quake mag 1.3), Okataina (Tarawera) (1 quake mag 1.5), Reykjanes (17 quakes between mag 0.1-1.9), Tenerife (1 quake mag 1.2), Terceira (1 quake mag 2.3), Tjörnes Fracture Zone (5 quakes between mag 0.6-1.4) (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:


Clear Lake volcano (California): 15 earthquakes up to magnitude 1.0

Possible earthquake swarm: 15 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 11.6 and 0.4 km.
Earthquake details: (only 5 largest)
1.0 quake Sonoma County, 3.8 mi west of Cobb, Lake County, California, USA, 1 Jan 6:45 pm (GMT -8) (18 km S)1.0 quake 3.4 mi west of Cobb, Lake County, California, USA, 2 Jan 4:41 am (GMT -8) (15 km S)0.9 quake Sonoma County, 5.5 mi west of Cobb, Lake County, California, USA, 2 Jan 9:52 am (GMT -8) (19 km SSW)0.9 quake Sonoma County, 4.4 mi west of Cobb, Lake County, California, USA, 2 Jan 8:11 am (GMT -8) (16 km S)0.9 quake Sonoma County, 5.5 mi west of Cobb, Lake County, California, USA, 1 Jan 4:02 pm (GMT -8) (15 km SSW)All earthquakes at Clear Lake

Coso volcano (California): 12 earthquakes up to magnitude 1.5

Possible earthquake swarm: 12 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 4.9 and 0.9 km.
Earthquake details: (only 5 largest)
1.5 quake Inyo County, 21 mi north of Ridgecrest, Kern County, California, USA, 2 Jan 12:51 pm (GMT -8) (18 km SE)1.3 quake Inyo County, 32 mi north of Ridgecrest, Kern County, California, USA, 2 Jan 11:58 am (GMT -8) (5 km NNW)1.3 quake Inyo County, 21 mi north of Ridgecrest, Kern County, California, USA, 2 Jan 9:19 am (GMT -8) (18 km SE)1.3 quake 14 mi southeast of Olancha, Inyo County, California, USA, 1 Jan 7:07 pm (GMT -8) (10 km NNW)1.2 quake Inyo County, 20 mi north of Ridgecrest, Kern County, California, USA, 2 Jan 10:14 am (GMT -8) (18 km SE)All earthquakes at Coso

Etna volcano (Italy): 7 earthquakes up to magnitude 2.2

7 earthquakes occurred near (under) the volcano during 1 hour 10 minutes, the last being recorded quake 16 hours ago. Hypocenter depths ranged between 12.9 and 1.3 km.
Earthquake details: (only 5 largest)
2.2 quake 2.7 km north of Ragalna, Catania, Sicily, Italy, 2 Jan 8:44 am (GMT +1) (11 km SSW)1.7 quake 2.6 km west of Zafferana Etnea, Catania, Sicily, Italy, 2 Jan 8:06 am (GMT +1) (11 km SE)1.6 quake 3.2 km southwest of Zafferana Etnea, Catania, Sicily, Italy, 2 Jan 8:19 am (GMT +1) (12 km SE)1.5 quake 5.4 km east of Biancavilla, Catania, Sicily, Italy, 2 Jan 7:34 am (GMT +1) (12 km SSW)1.5 quake 2.5 km southwest of Zafferana Etnea, Catania, Sicily, Italy, 2 Jan 7:47 am (GMT +1) (12 km SE)All earthquakes at Etna

Laguna Aramuaca volcano (El Salvador): magnitude 2.7 earthquake

A magnitude 2.7 earthquake occurred at the volcano 17 hours ago. The quake, which might be volcanic in origin, was located at a depth of 7.0 km depth at 16 km distance S from the volcano.
Earthquake details:
2.7 quake 7.3 km north of Chirilagua, Departamento de San Miguel, El Salvador, 2 Jan 12:41 am (GMT -6) (16 km S)All earthquakes at Laguna Aramuaca

Mauna Loa volcano (Hawai'i (Big Island)): 2 earthquakes up to magnitude 2.3

2 earthquakes occurred near (under) the volcano during 4 hours, the last being recorded quake 12 hours ago. Hypocenter depths ranged between 5.8 and 3.4 km.
Earthquake details:
2.3 quake 9.4 mi north of Pāhala, Hawaii County, USA, 2 Jan 1:43 am (GMT -10) (19 km SE)1.3 quake 10.5 mi southeast of Honaunau-Napoopoo, Hawaii County, USA, 1 Jan 9:54 pm (GMT -10) (16 km SW)All earthquakes at Mauna Loa

Reykjanes volcano (Iceland): 17 earthquakes up to magnitude 1.9

Possible earthquake swarm: 17 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 35 minutes ago. Hypocenter depths ranged between 7.3 and 0.1 km.
Earthquake details: (only 5 largest)
1.9 quake 2.6 Km NE of Grindavík, Iceland, 2 Jan 4:14 pm (GMT +0) (7 km SE)1.4 quake 2.8 Km NE of Grindavík, Iceland, 2 Jan 4:14 pm (GMT +0) (7 km SE)1.4 quake 3.0 Km NE of Grindavík, Iceland, 2 Jan 4:13 pm (GMT +0) (7 km ESE)0.9 quake 3.3 Km NE of Grindavík, Iceland, 2 Jan 4:12 pm (GMT +0) (7 km ESE)0.9 quake 3.1 Km NE of Grindavík, Iceland, 2 Jan 3:57 pm (GMT +0) (7 km ESE)All earthquakes at Reykjanes

Terceira volcano (Azores): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 5 hours ago. The quake, which might be volcanic in origin, was located at a depth of 0 km depth at 7 km distance ENE from the volcano.
Earthquake details:
2.3 quake 3.2 km south of Biscoitos, Praia da Vitoria Municipality, Azores, Portugal, 2 Jan 5:51 pm (GMT -1) (7 km ENE)All earthquakes at Terceira
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