Volcano earthquake report for Monday, 18 Dec 2023
World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 18 Dec 2023 Number in brackets indicate nr of quakes.

Quakes detected near: Bardarbunga (4 quakes between mag 0.9-1.3), Clear Lake (17 quakes between mag 0.2-1.9), Coso (2 quakes between mag 0.9-2.0), Fagradalsfjall (22 quakes between mag 0.2-1.0), Gagak (1 quake mag 2.7), Izalco (1 quake mag 2.0)
Jabal el-Marha (2 quakes between mag 3.0-3.0), Kilauea (7 quakes between mag 1.8-2.3), Krísuvík (7 quakes between mag 0.2-1.3), Kurikoma (1 quake mag 2.6), Martin (1 quake mag 1.0), Momotombo (1 quake mag 1.4), Papayo (1 quake mag 3.0), Reykjanes (58 quakes between mag 0.1-2.6), Salton Buttes (1 quake mag 1.3), Vesuvius (2 quakes between mag 0.7-1.0) (updated 01h50)

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:



Clear Lake volcano (California): 17 earthquakes up to magnitude 1.9

Possible earthquake swarm: 17 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 15 minutes ago. Hypocenter depths ranged between 12.1 and 1.3 km.
Earthquake details: (only 5 largest)
1.9 quake 12 mi southwest of Clearlake, Lake County, California, USA, Dec 17, 2023 06:03 am (Los Angeles time) (15 km S)
1.6 quake Sonoma County, 13 mi southwest of Clearlake, Lake County, California, USA, Dec 17, 2023 07:30 am (Los Angeles time) (18 km S)
1.3 quake 28 mi north of Santa Rosa, Sonoma County, California, USA, Dec 17, 2023 12:54 pm (Los Angeles time) (16 km SSW)
0.9 quake 26 mi north of Santa Rosa, Sonoma County, California, USA, Dec 17, 2023 03:27 pm (Los Angeles time) (19 km SSW)
0.8 quake 25 mi north of Santa Rosa, Sonoma County, California, USA, Dec 17, 2023 05:15 am (Los Angeles time) (19 km S)
All earthquakes at Clear Lake

Fagradalsfjall volcano (Reykjanes Peninsula, Iceland): 22 earthquakes up to magnitude 1.0

Possible earthquake swarm: 22 earthquakes occurred near (under) the volcano during 8 hours, the last being recorded quake 16 hours ago. Hypocenter depths ranged between 7.2 and 1.7 km.
Earthquake details: (only 5 largest)
1.0 quake Iceland: 5.5 Km WSW of Fagradalsfjall Dec 17, 2023 09:08 am (Reykjavik time) (6 km W)
1.0 quake Iceland: 5.3 Km W of Fagradalsfjall Dec 17, 2023 09:59 am (Reykjavik time) (5 km W)
0.9 quake Iceland: 4.6 Km NNE of Grindavík Dec 17, 2023 04:24 am (Reykjavik time) (6 km WSW)
0.9 quake Iceland: 1.7 Km SSW of Fagradalsfjall Dec 17, 2023 06:58 am (Reykjavik time) (1 km WSW)
0.8 quake Iceland: 5.5 Km NNE of Grindavík Dec 17, 2023 02:26 am (Reykjavik time) (6 km W)
All earthquakes at Fagradalsfjall

Gagak volcano (West Java): magnitude 2.7 earthquake

A magnitude 2.7 earthquake occurred at the volcano 5 hours ago. The quake, which might be volcanic in origin, was located at a depth of 11.0 km depth at 10 km distance W from the volcano.
Earthquake details:
2.7 quake Bogor Regency, 26 km southwest of Ciampea, West Java, Indonesia, Dec 18, 2023 04:04 am (Jakarta time) (10 km W)
All earthquakes at Gagak

Jabal el-Marha volcano (Arabian Peninsula): 2 earthquakes up to magnitude 3.0

2 earthquakes occurred near (under) the volcano during 54 minutes, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 10.0 and 10.0 km.
Earthquake details:
Reported quake or seismic-like event: Near Sana'a, Amanat Alasimah, Yemen, Dec 17, 2023 11:35 pm (GMT +3) (12 km N)
Reported quake or seismic-like event: Near Sana'a, Amanat Alasimah, Yemen, Dec 17, 2023 10:41 pm (GMT +3) (7 km N)
All earthquakes at Jabal el-Marha

Kilauea volcano (Hawai'i (Big Island)): 7 earthquakes up to magnitude 2.3

7 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 1 hour 52 minutes ago. Hypocenter depths ranged between 22.9 and 1.1 km.
Earthquake details: (only 5 largest)
2.3 quake 8.4 mi northeast of Pāhala, Hawaii County, USA, Dec 17, 2023 01:05 am (Honolulu time) (17 km SW)
2.3 quake 8.5 mi northeast of Pāhala, Hawaii County, USA, Dec 16, 2023 10:43 pm (Honolulu time) (17 km SW)
2.3 quake 9.2 mi northeast of Pāhala, Hawaii County, USA, Dec 16, 2023 07:13 pm (Honolulu time) (16 km SW)
2.1 quake 9.5 mi northeast of Pāhala, Hawaii County, USA, Dec 17, 2023 10:35 am (GMT +0) (15 km SW)
1.8 quake 25 mi southwest of Hilo, Hawaii County, USA, Dec 17, 2023 01:58 pm (Honolulu time) (2 km NE)
All earthquakes at Kilauea

Kurikoma volcano (Honshu): magnitude 2.6 earthquake

A magnitude 2.6 earthquake occurred at the volcano 15 hours ago. The quake, which might be volcanic in origin, was located at a depth of 9.8 km depth at 12 km distance E from the volcano.
Earthquake details:
2.6 quake 19 km west of Ichinoseki, Iwate, Japan, Dec 17, 2023 08:14 pm (GMT +9) (12 km E)
All earthquakes at Kurikoma

Papayo volcano (Western & Central Mexico): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 16 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 15 km distance E from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): Near Ixtapaluca, México, Mexico, Dec 17, 2023 04:04 am (GMT -6) (15 km E)
All earthquakes at Papayo

Reykjanes volcano (Reykjanes Peninsula, Iceland): 58 earthquakes up to magnitude 2.6

Possible earthquake swarm: 58 earthquakes occurred near (under) the volcano during 12 hours, the last being recorded quake 12 hours ago. Hypocenter depths ranged between 6.4 and 0.1 km.
Earthquake details: (only 5 largest)
2.6 quake 4.7 Km SW of Grindavík Dec 17, 2023 03:51 am (Reykjavik time) (10 km S)
1.7 quake Iceland: 1.5 Km N of Grindavík Dec 17, 2023 01:43 pm (Reykjavik time) (6 km SE)
1.5 quake Iceland: 2.9 Km NNE of Grindavík Dec 17, 2023 10:17 am (Reykjavik time) (6 km ESE)
1.5 quake 5.0 Km SW of Grindavík Dec 17, 2023 03:44 am (Reykjavik time) (10 km S)
1.2 quake Iceland: 3.9 Km NNE of Grindavík Dec 17, 2023 05:35 am (Reykjavik time) (6 km ESE)
All earthquakes at Reykjanes
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/228952/Volcano-earthquake-report-for-Monday-18-Dec-2023.html