Volcano earthquake report for Thursday, 2 Feb 2023

Quakes detected near: Almolonga (1 quake mag 3.0), Apaneca Range (4 quakes between mag 1.8-2.1), Askja (7 quakes between mag 0.2-1.3), Buzzard Creek (1 quake mag 1.7), Campi Flegrei (Phlegrean Fields) (5 quakes between mag 0.1-1.1), Cerro Singüil (2 quakes between mag 2.1-2.2)
Churchill (1 quake mag 2.7), Clear Lake (34 quakes between mag 0.2-1.8), Eldey (7 quakes between mag 0.4-2.0), Etna (1 quake mag 2.0), Fourpeaked (1 quake mag 2.0), Grímsnes (2 quakes between mag 1.1-1.4), Hengill (1 quake mag 3.0), Katla (1 quake mag 2.2), La Palma (1 quake mag 1.2), Long Valley (1 quake mag 1.3), Maroa (1 quake mag 1.4), Maunaloa (1 quake mag 2.3), Mayotte Island (2 quakes between mag 1.1-2.0), Moyuta (1 quake mag 2.3), Okmok (1 quake mag 1.3), Paco (1 quake mag 1.9), Reykjanes (2 quakes between mag 1.0-1.5), Ruapehu (1 quake mag 1.2), Salton Buttes (2 quakes between mag 0.9-1.3), San Cristobal (1 quake mag 1.6), Taupo (1 quake mag 1.9), Tjörnes Fracture Zone (1 quake mag 1.1) (updated 23h50)

Note: Earthquakes within 20 km from and at depths less than 50 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:

Almolonga volcano (Guatemala): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 5 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 7 km distance NW from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 2.6 km northwest of Quetzaltenango, Guatemala, Feb 2, 2023 1:01 pm (GMT -6) (7 km NW)
All earthquakes at Almolonga

Apaneca Range volcano (El Salvador): 4 earthquakes up to magnitude 2.1

4 earthquakes occurred near (under) the volcano during 11 hours, the last being recorded quake 11 hours ago. Hypocenter depths ranged between 11.0 and 7.0 km.
Earthquake details:
2.1 quake Guatemala, 14 km north of Ahuachapan, El Salvador, Feb 1, 2023 8:48 pm (GMT -6) (18 km NNW)
2.0 quake Departamento de Jutiapa, Guatemala, 15 km north of Ahuachapan, El Salvador, Feb 2, 2023 6:35 am (GMT -6) (19 km NNW)
1.9 quake Guatemala, 14 km north of Ahuachapan, El Salvador, Feb 1, 2023 7:29 pm (GMT -6) (18 km NNW)
1.8 quake 8.3 km north of Ahuachapan, Ahuachapán, Departamento de Ahuachapan, El Salvador, Feb 2, 2023 3:50 am (GMT -6) (13 km NNW)
All earthquakes at Apaneca Range

Cerro Singüil volcano (El Salvador): 2 earthquakes up to magnitude 2.2

2 earthquakes occurred near (under) the volcano during 1 hour 23 minutes, the last being recorded quake 14 hours ago. Hypocenter depths ranged between 10.0 and 6.0 km.
Earthquake details:
2.2 quake Guatemala, 15 km north of Ahuachapan, El Salvador, Feb 2, 2023 2:00 am (GMT -6) (18 km W)
2.1 quake Departamento de Jutiapa, Guatemala, 16 km north of Ahuachapan, El Salvador, Feb 2, 2023 3:22 am (GMT -6) (19 km W)
All earthquakes at Cerro Singüil

Churchill volcano (Eastern Alaska): magnitude 2.7 earthquake

A magnitude 2.7 earthquake occurred at the volcano 16 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.5 km depth at 17 km distance ENE from the volcano.
Earthquake details:
2.7 quake 48 mi east of MakKarti, Valdez-Cordova, Alaska, USA, Feb 1, 2023 11:02 pm (GMT -9) (17 km ENE)
All earthquakes at Churchill

Clear Lake volcano (California): 34 earthquakes up to magnitude 1.8

Possible earthquake swarm: 34 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 54 minutes ago. Hypocenter depths ranged between 9.2 and 0.8 km.
Earthquake details: (only 5 largest)
1.8 quake 13 mi southwest of Clearlake, Lake County, California, USA, Feb 1, 2023 10:10 pm (GMT -8) (18 km S)
1.5 quake 9km WNW of Cobb, CA, Feb 2, 2023 2:55 pm (GMT -8) (15 km SSW)
1.5 quake 6km NW of The Geysers, CA, Feb 2, 2023 11:56 am (GMT -8) (17 km S)
1.5 quake 6km W of Cobb, CA, Feb 2, 2023 1:49 am (GMT -8) (16 km S)
1.4 quake 6km NW of The Geysers, CA, Feb 2, 2023 11:56 am (GMT -8) (17 km S)
All earthquakes at Clear Lake

Hengill volcano (Iceland): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 13 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 17 km distance W from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 42 km northwest of Selfoss, Sveitarfélagið Arborg, South, Iceland, Feb 2, 2023 11:17 am (GMT +0) (17 km W)
All earthquakes at Hengill

Katla volcano (Iceland): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 11 hours ago. The quake, which might be volcanic in origin, was located at a depth of 0.1 km depth at 7 km distance W from the volcano.
Earthquake details:
2.2 quake Iceland: 2.6 Km SE of Goðabunga Feb 2, 2023 12:50 pm (GMT +0) (7 km W)
All earthquakes at Katla

Maunaloa volcano (Hawai'i (Big Island)): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 23 hours ago. The quake, which might be volcanic in origin, was located at a depth of 8.7 km depth at 17 km distance E from the volcano.
Earthquake details:
2.3 quake 16 mi southeast of Hawaii Island, Hawaii County, USA, Feb 1, 2023 3:00 pm (GMT -10) (17 km E)
All earthquakes at Maunaloa

Moyuta volcano (Guatemala): 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 9.0 km depth at 11 km distance ESE from the volcano.
Earthquake details:
2.3 quake Departamento de Jutiapa, Guatemala, 19 km west of Ahuachapan, El Salvador, Feb 2, 2023 1:17 pm (GMT -6) (11 km ESE)
All earthquakes at Moyuta

Unnamed volcano (North of Luzon): magnitude 2.4 earthquake

A magnitude 2.4 earthquake occurred at the volcano 8 hours ago. The quake, which might be volcanic in origin, was located at a depth of 33.0 km depth at 15 km distance ENE from the volcano.
Earthquake details:
2.4 quake South China Sea, 12 km southwest of Basco, Philippines, Feb 2, 2023 11:30 pm (GMT +8) (15 km ENE)
All earthquakes at Unnamed