Volcano earthquake report for Tuesday, 12 Dec 2023

Quakes detected near: Baluran (1 quake mag 3.1), Buzzard Creek (1 quake mag 1.8), Clear Lake (24 quakes between mag 0.2-1.8), Cuernos de Negros (1 quake mag 2.0), Eldey (1 quake mag 1.7), Etna (5 quakes between mag 1.3-1.7)
Fagradalsfjall (3 quakes between mag 0.3-1.0), Gagak (1 quake mag 2.5), Grímsvötn (5 quakes between mag 0.2-1.6), Hekla (3 quakes between mag 0.1-2.0), Hrómundartindur (7 quakes between mag 0.1-1.6), Isla San Luis (1 quake mag 3.7), Kilauea (6 quakes between mag 1.7-2.8), Kolumbo (1 quake mag 2.7), Koruhüyüğü (1 quake mag 1.6), Kueishantao (1 quake mag 3.2), Kukak (1 quake mag 1.2), Ljósufjöll (4 quakes between mag 0.7-1.8), Mauna Kea (1 quake mag 3.1), Mount Rainier (3 quakes between mag 0.3-1.0), Prestahnukur (1 quake mag 1.1), Reporoa (3 quakes between mag 1.5-1.8), Reykjanes (9 quakes between mag 0.6-2.8), San Vicente (1 quake mag 2.2), Sinabung (1 quake mag 3.0), Tandikat (1 quake mag 3.0), Taupo (4 quakes between mag 1.7-1.9), Tenorio (1 quake mag 2.6), Terceira (1 quake mag 2.1), Tongariro (1 quake mag 1.5) (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:

Baluran volcano (East Java): magnitude 3.1 earthquake

A magnitude 3.1 earthquake occurred at the volcano 16 hours ago. The quake, which might be volcanic in origin, was located at a depth of 14.0 km depth at 9 km distance SSW from the volcano.
Earthquake details:
3.1 quake 8.8 km northwest of Wongsorejo, East Java, Indonesia, Dec 12, 2023 03:17 pm (Jakarta time) (9 km SSW)
All earthquakes at Baluran

Clear Lake volcano (California): 24 earthquakes up to magnitude 1.8

Possible earthquake swarm: 24 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 1 hour 10 minutes ago. Hypocenter depths ranged between 5.4 and 0.1 km.
Earthquake details: (only 5 largest)
1.8 quake 12 mi southwest of Clearlake, Lake County, California, USA, Dec 12, 2023 12:02 am (Los Angeles time) (19 km SSE)
1.3 quake 28 mi north of Santa Rosa, Sonoma County, California, USA, Dec 12, 2023 04:09 am (Los Angeles time) (15 km SSW)
1.1 quake 26 mi north of Santa Rosa, Sonoma County, California, USA, Dec 12, 2023 10:11 am (Los Angeles time) (18 km S)
1.1 quake 27 mi north of Santa Rosa, Sonoma County, California, USA, Dec 12, 2023 10:53 am (Los Angeles time) (17 km S)
1.1 quake 26 mi north of Santa Rosa, Sonoma County, California, USA, Dec 11, 2023 11:41 pm (Los Angeles time) (17 km S)
All earthquakes at Clear Lake

Gagak volcano (West Java): magnitude 2.5 earthquake

A magnitude 2.5 earthquake occurred at the volcano 24 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 13 km distance WSW from the volcano.
Earthquake details:
2.5 quake 27 km west of Cicurug, West Java, Indonesia, Dec 12, 2023 07:00 am (Jakarta time) (13 km WSW)
All earthquakes at Gagak

Isla San Luis volcano (Baja California, NW Mexico & Mexican Islands): magnitude 3.7 earthquake

A magnitude 3.7 earthquake occurred at the volcano 16 hours ago. The quake, which might be volcanic in origin, was located at a depth of 14.8 km depth at 9 km distance NNE from the volcano.
Earthquake details:
3.7 quake 117 km southeast of San Felipe, Mexicali Municipality, Baja California, Mexico, Dec 12, 2023 12:44 am (Tijuana time) (9 km NNE)
All earthquakes at Isla San Luis

Kilauea volcano (Hawai'i (Big Island)): 6 earthquakes up to magnitude 2.8

6 earthquakes occurred near (under) the volcano during 4 hours, the last being recorded quake 18 minutes ago. Hypocenter depths ranged between 1.7 and 1.0 km.
Earthquake details: (only 5 largest)
2.8 quake 26 mi south of Hilo, Hawaii County, USA, Dec 12, 2023 10:26 pm (GMT +0) (6 km ESE)
2.3 quake 26 mi south of Hilo, Hawaii County, USA, Dec 12, 2023 10:12 pm (GMT +0) (5 km ESE)
2.2 quake 26 mi south of Hilo, Hawaii County, USA, Dec 12, 2023 01:32 pm (Honolulu time) (6 km ESE)
2.1 quake 26 mi south of Hilo, Hawaii County, USA, Dec 12, 2023 10:31 pm (GMT +0) (6 km ESE)
1.9 quake 25 mi southwest of Hilo, Hawaii County, USA, Dec 12, 2023 10:52 am (Honolulu time) (4 km ESE)
All earthquakes at Kilauea

Kolumbo volcano (Greece): magnitude 2.7 earthquake

A magnitude 2.7 earthquake occurred at the volcano 13 hours ago. The quake, which might be volcanic in origin, was located at a depth of 12.2 km depth at 6 km distance WNW from the volcano.
Earthquake details:
2.7 quake Aegean Sea, 9.9 km northeast of Oia, Nomos Kykladon, South Aegean, Greece, Dec 12, 2023 02:10 pm (Athens time) (6 km WNW)
All earthquakes at Kolumbo

Kueishantao volcano (Taiwan): magnitude 3.2 earthquake

A magnitude 3.2 earthquake occurred at the volcano 6 hours ago. The quake, which might be volcanic in origin, was located at a depth of 9.2 km depth at 19 km distance SW from the volcano.
Earthquake details:
3.2 quake 4.8 km southeast of Yilan, Taiwan, Taiwan, Dec 13, 2023 01:34 am (Taipei time) (19 km SW)
All earthquakes at Kueishantao

Mauna Kea volcano (Hawai'i (Big Island)): magnitude 3.1 earthquake

A magnitude 3.1 earthquake occurred at the volcano 23 hours ago. The quake, which might be volcanic in origin, was located at a depth of 31.1 km depth at 12 km distance E from the volcano.
Earthquake details:
3.1 quake 28 mi northeast of Hawaii Island, Hawaii County, USA, Dec 11, 2023 03:08 pm (Honolulu time) (12 km E)
All earthquakes at Mauna Kea

Reykjanes volcano (Reykjanes Peninsula, Iceland): 9 earthquakes up to magnitude 2.8

9 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 1 hour 22 minutes ago. Hypocenter depths ranged between 5.6 and 1.1 km.
Earthquake details: (only 5 largest)
2.8 quake 2.9 Km NNE of Grindavík Dec 12, 2023 07:32 am (Reykjavik time) (6 km ESE)
2.5 quake 3.0 Km NNE of Grindavík Dec 12, 2023 03:42 am (Reykjavik time) (6 km ESE)
2.3 quake Iceland: 2.6 Km N of Grindavík Dec 12, 2023 06:45 am (Reykjavik time) (5 km SE)
1.5 quake 4.5 Km NNE of Grindavík Dec 12, 2023 02:03 am (Reykjavik time) (6 km ESE)
1.3 quake Iceland: 5.4 Km SW of Grindavík Dec 12, 2023 07:51 am (Reykjavik time) (10 km S)
All earthquakes at Reykjanes

San Vicente volcano (El Salvador): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 17 hours ago. The quake, which might be volcanic in origin, was located at a depth of 9.0 km depth at 15 km distance WSW from the volcano.
Earthquake details:
2.2 quake 11 km west of Zacatecoluca, Departamento de La Paz, El Salvador, Dec 12, 2023 01:11 am (El Salvador time) (15 km WSW)
All earthquakes at San Vicente

Sinabung volcano (Sumatra): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 11 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 14 km distance SE from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 0.5 km southeast of Kabanjahe, North Sumatra, Indonesia, Dec 12, 2023 08:17 pm (GMT +7) (14 km SE)
All earthquakes at Sinabung

Tandikat volcano (Sumatra): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 3 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 12 km distance SW from the volcano.
Earthquake details:
3.0 quake 19 km northeast of Pariaman, Sumatra Barat, Indonesia, Dec 13, 2023 04:01 am (Jakarta time) (12 km SW)
All earthquakes at Tandikat

Tenorio volcano (Costa Rica): magnitude 2.6 earthquake

A magnitude 2.6 earthquake occurred at the volcano 17 hours ago. The quake, which might be volcanic in origin, was located at a depth of 3.0 km depth at 2 km distance SE from the volcano.
Earthquake details:
2.6 quake 35 km southeast of San José, Upala, Provincia de Alajuela, Costa Rica, Dec 12, 2023 12:32 am (Costa Rica time) (2 km SE)
All earthquakes at Tenorio

Terceira volcano (Azores): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 12 hours ago. The quake, which might be volcanic in origin, was located at a depth of 0 km depth at 5 km distance NNW from the volcano.
Earthquake details:
2.1 quake 18 km northwest of Angra do Heroismo, Azores, Portugal, Dec 12, 2023 10:54 am (Azores time) (5 km NNW)
All earthquakes at Terceira
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