Volcano earthquake report for Wednesday, 12 Dec 2018

Quakes detected near: Askja (11 quakes between mag 0.1-1.0), Atka (1 quake mag 1.5), Bardarbunga (4 quakes between mag 0.5-2.0), Clear Lake (14 quakes between mag 0.6-2.1), Coso (3 quakes between mag 0.9-2.3), Etna (1 quake mag 1.4)
Eyafjallajökull (1 quake mag 1.4), Grensdalur (1 quake mag 1.1), Grímsvötn (1 quake mag 1.0), Hrómundartindur (2 quakes between mag 0.6-1.0), Irazu (1 quake mag 3.4), Katla (2 quakes between mag 1.1-1.8), Kilauea (2 quakes between mag 1.7-2.0), Mammoth Mountain (7 quakes between mag 0.3-1.1), Maroa (5 quakes between mag 1.7-2.3), Mount Rainier (1 quake mag 1.8), Redoubt (1 quake mag 1.7), Salton Buttes (1 quake mag 1.5), Tjörnes Fracture Zone (2 quakes between mag 0.7-1.1), Torfajökull (2 quakes between mag 1.3-1.3), Ubehebe Craters (1 quake mag 1.8), Öraefajökull (4 quakes between mag 0.2-1.7) (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:

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

Possible earthquake swarm: 11 earthquakes occurred near (under) the volcano during 14 hours, the last being recorded quake 9 hours ago. Hypocenter depths ranged between 8.2 and 1.1 km.
Earthquake details: (only 5 largest)
M 1.0 quake: 7.1 km SE of Dreki on Wed, 12 Dec 11h08 (12 km ESE)
M 0.7 quake: 7.0 km ESE of Dreki on Wed, 12 Dec 13h38 (13 km ESE)
M 0.7 quake: 3.9 km WNW of Dreki on Wed, 12 Dec 13h14 (4 km ENE)
M 0.6 quake: 7.2 km ESE of Dreki on Wed, 12 Dec 11h07 (13 km ESE)
M 0.5 quake: 7.1 km ESE of Dreki on Wed, 12 Dec 11h08 (13 km ESE)
All earthquakes at Askja

Clear Lake volcano (California): 14 earthquakes up to magnitude 2.1

Possible earthquake swarm: 14 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 3.3 and 0.9 km.
Earthquake details: (only 5 largest)
M 2.1 quake: NORTHERN CALIFORNIA on Wed, 12 Dec 10h58 (19 km S)
M 2.0 quake: 10km NW of The Geysers, CA on Wed, 12 Dec 01h13 (17 km SSE)
M 1.8 quake: 4km WNW of Cobb, CA on Wed, 12 Dec 21h42 (15 km S)
M 1.8 quake: 7km WNW of The Geysers, CA on Wed, 12 Dec 07h42 (18 km S)
M 1.1 quake: 6km NW of The Geysers, CA on Wed, 12 Dec 20h34 (18 km S)
All earthquakes at Clear Lake

Coso volcano (California): 3 earthquakes up to magnitude 2.3

3 earthquakes occurred near (under) the volcano during 13 hours, the last being recorded quake 1 hour 7 minutes ago. Hypocenter depths ranged between 4.0 and 1.6 km.
Earthquake details:
M 2.3 quake: CENTRAL CALIFORNIA on Wed, 12 Dec 10h09 (17 km SSW)
M 0.9 quake: 12km NE of Little Lake, CA on Wed, 12 Dec 22h42 (2 km S)
M 0.9 quake: 3km SW of Little Lake, CA on Wed, 12 Dec 20h10 (16 km SSW)
All earthquakes at Coso

Irazu volcano (Costa Rica): magnitude 3.4 earthquake

A magnitude 3.4 earthquake occurred at the volcano 23 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.0 km depth at 12 km distance SSW from the volcano.
Earthquake details:
M 3.4 quake: 2 km al Sur de Cot, Oreamuno. on Wed, 12 Dec 00h31 (12 km SSW)
All earthquakes at Irazu

Maroa volcano (New Zealand): 5 earthquakes up to magnitude 2.3

5 earthquakes occurred near (under) the volcano during 27 minutes, the last being recorded quake 15 hours ago. Hypocenter depths ranged between 5.4 and 4.6 km.
Earthquake details:
M 2.3 quake: New Zealand on Wed, 12 Dec 08h29 (10 km WNW)
M 2.1 quake: New Zealand on Wed, 12 Dec 08h17 (10 km WNW)
M 2.0 quake: New Zealand on Wed, 12 Dec 08h33 (11 km WNW)
M 1.7 quake: New Zealand on Wed, 12 Dec 08h22 (10 km WNW)
M 1.7 quake: New Zealand on Wed, 12 Dec 08h07 (10 km WNW)
All earthquakes at Maroa