Volcano earthquake report for Monday, 28 Dec 2020
World map showing volcanoes with shallow (less than 20 km) earthquakes within 20 km radius during the past 24 hours on 28 Dec 2020 Number in brackets indicate nr of quakes.

Quakes detected near: Bardarbunga (1 quake mag 1.1), Cabalian (1 quake mag 2.1), Campi Flegrei (Phlegrean Fields) (2 quakes between mag 1.2-2.6), Clear Lake (14 quakes between mag 0.1-1.2), Coso (7 quakes between mag 0.8-1.7), Herdubreid (8 quakes between mag 0.3-1.3)
Krísuvík (2 quakes between mag 0.6-1.7), Laguna Aramuaca (2 quakes between mag 2.7-3.5), Mammoth Mountain (2 quakes between mag 0.5-2.6), Mauna Loa (2 quakes between mag 0.8-2.2), Reykjanes (12 quakes between mag 0.2-2.3), Taupo (1 quake mag 1.7), Tenerife (2 quakes between mag 0.4-1.0), Tjörnes Fracture Zone (3 quakes between mag 1.0-1.8), Yake-dake (2 quakes between mag 3.2-3.3) (updated 12h50)

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:


Cabalian volcano (Central Philippines): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 13 hours ago. The quake, which might be volcanic in origin, was located at a depth of 1.0 km depth at 5 km distance WNW from the volcano.
Earthquake details:
2.1 quake 9 km southwest of Hinundayan, Southern Leyte, Eastern Visayas, Philippines, 28 Dec 8:11 am (GMT +8) (5 km WNW)All earthquakes at Cabalian

Campi Flegrei (Phlegrean Fields) volcano (Italy): 2 earthquakes up to magnitude 2.6

2 earthquakes occurred near (under) the volcano during 9 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 3.3 and 2.2 km.
Earthquake details:
2.6 quake 3.9 km southwest of Pianura, Naples, Campania, Italy, 28 Dec 9:09 am (GMT +1) (1 km NE)1.2 quake Tyrrhenian Sea, 4.6 km southeast of Pozzuoli, Naples, Campania, Italy, 28 Dec 12:15 am (GMT +1) (3 km SW)All earthquakes at Campi Flegrei (Phlegrean Fields)

Clear Lake volcano (California): 14 earthquakes up to magnitude 1.2

Possible earthquake swarm: 14 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 2.0 and 0.6 km.
Earthquake details: (only 5 largest)
1.2 quake Sonoma County, 5 mi west of Cobb, Lake County, California, USA, 28 Dec 2:37 am (GMT -8) (16 km SSW)1.1 quake 3.4 mi west of Cobb, Lake County, California, USA, 27 Dec 12:51 pm (GMT -8) (15 km S)1.0 quake Sonoma County, 4.3 mi west of Cobb, Lake County, California, USA, 27 Dec 5:35 pm (GMT -8) (16 km S)0.8 quake Sonoma County, 4.8 mi west of Cobb, Lake County, California, USA, 27 Dec 9:22 am (GMT -8) (16 km SSW)0.7 quake Sonoma County, 5.8 mi west of Cobb, Lake County, California, USA, 27 Dec 10:28 pm (GMT -8) (18 km SSW)All earthquakes at Clear Lake

Laguna Aramuaca volcano (El Salvador): 2 earthquakes up to magnitude 3.5

2 earthquakes occurred near (under) the volcano during 15 minutes, the last being recorded quake 15 hours ago. Hypocenter depths ranged between 7.0 and 6.0 km.
Earthquake details:
3.5 quake 9.4 km north of Chirilagua, Departamento de San Miguel, El Salvador, 27 Dec 3:34 pm (GMT -6) (14 km S)2.7 quake 8.1 km north of Chirilagua, Departamento de San Miguel, El Salvador, 27 Dec 3:49 pm (GMT -6) (15 km S)All earthquakes at Laguna Aramuaca

Mammoth Mountain volcano (California): 2 earthquakes up to magnitude 2.6

2 earthquakes occurred near (under) the volcano during 10 minutes, the last being recorded quake 10 hours ago. Hypocenter depths ranged between 5.3 and 3.1 km.
Earthquake details:
2.6 quake 10.2 mi southeast of Mammoth Lakes, Mono County, California, USA, 27 Dec 6:13 pm (GMT -8) (18 km SE)0.5 quake 10.5 mi southeast of Mammoth Lakes, Mono County, California, USA, 27 Dec 6:23 pm (GMT -8) (18 km SE)All earthquakes at Mammoth Mountain

Mauna Loa volcano (Hawai'i (Big Island)): 2 earthquakes up to magnitude 2.2

2 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 2.8 and 1.1 km.
Earthquake details:
2.2 quake 14 mi east of Honaunau-Napoopoo, Hawaii County, USA, 28 Dec 12:47 am (GMT -10) (6 km WNW)0.8 quake 17 mi east of Honaunau-Napoopoo, Hawaii County, USA, 27 Dec 9:53 am (GMT -10) (6 km S)All earthquakes at Mauna Loa

Reykjanes volcano (Iceland): 12 earthquakes up to magnitude 2.3

Possible earthquake swarm: 12 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 5.6 and 0.1 km.
Earthquake details: (only 5 largest)
2.3 quake 1.9 Km NNE of Grindavík, Iceland, 27 Dec 1:55 pm (GMT +0) (7 km SE)1.6 quake 2.4 Km SSW of Grindavík, Iceland, 27 December 2020 22:09 UTC (9 km SSE)1.5 quake 2.3 Km NNE of Grindavík, Iceland, 27 Dec 1:54 pm (GMT +0) (6 km SE)1.3 quake 2.3 Km NNE of Grindavík, Iceland, 27 December 2020 16:28 UTC (6 km SE)1.2 quake 2.7 Km NE of Grindavík, Iceland, 28 Dec 10:14 am (GMT +0) (7 km SE)All earthquakes at Reykjanes

Yake-dake volcano (Honshu): 2 earthquakes up to magnitude 3.3

2 earthquakes occurred near (under) the volcano during 12 hours, the last being recorded quake 8 hours ago. Hypocenter depths ranged between 5.9 and 4.9 km.
Earthquake details:
3.3 quake Takayama Shi, Gifu, 29 km west of Matsumoto, Matsumoto Shi, Nagano, Japan, 28 Dec 2:38 am (GMT +9) (5 km ENE)3.2 quake 28 km west of Matsumoto, Matsumoto Shi, Nagano, Japan, 28 Dec 2:17 pm (GMT +9) (6 km E)All earthquakes at Yake-dake
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/117582/Volcano-earthquake-report-for-Monday-28-Dec-2020.html