Volcano earthquake report for Tuesday, 21 Dec 2021
World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 21 Dec 2021 Number in brackets indicate nr of quakes.

Quakes detected near: Akuseki-jima (1 quake mag 3.1), Bardarbunga (1 quake mag 2.3), Campi Flegrei (Phlegrean Fields) (1 quake mag 3.0), Cerro Santiago (1 quake mag 3.0), Clear Lake (34 quakes between mag 0.2-1.9), Coso (4 quakes between mag 0.8-1.1)
Eldey (3 quakes between mag 1.3-1.5), Etna (2 quakes between mag 3.0-3.0), Fagradalsfjall (81 quakes between mag 0.1-3.3), Hekla (3 quakes between mag 0.1-1.3), Herdubreid (7 quakes between mag 0.2-1.2), Hualalai (1 quake mag 2.3), Kilauea (2 quakes between mag 1.8-1.8), Krísuvík (31 quakes between mag 0.1-1.5), Kverkfjöll (2 quakes between mag 1.1-1.2), La Palma (17 quakes between mag 1.4-3.0), Licto (1 quake mag 3.5), Ljósufjöll (1 quake mag 1.5), Loihi (1 quake mag 3.0), Lysuhóll (1 quake mag 1.7), Maunaloa (1 quake mag 1.7), Methana (1 quake mag 1.5), Piton de la Fournaise (1 quake mag 1.6), Reykjanes (3 quakes between mag 0.4-1.3), Sibualbuali (1 quake mag 2.6), Taal (1 quake mag 3.0), Tjörnes Fracture Zone (4 quakes between mag 0.5-1.4), Vatnafjöll (14 quakes between mag 0.1-3.0) (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:


Akuseki-jima volcano (Ryukyu Islands): magnitude 3.1 earthquake

A magnitude 3.1 earthquake occurred at the volcano 2 hours ago. The quake, which might be volcanic in origin, was located at a depth of 12.6 km depth at 14 km distance SSW from the volcano.
Earthquake details:
3.1 quake East China Sea, 108 km north of Naze, Amami Shi, Kagoshima, Japan, Dec 22, 2021 6:40 am (GMT +9) (14 km SSW)All earthquakes at Akuseki-jima

Bardarbunga volcano (Iceland): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 10 hours ago. The quake, which might be volcanic in origin, was located at a depth of 11.3 km depth at 5 km distance E from the volcano.
Earthquake details:
2.3 quake Iceland: 5.2 Km ESE of Bárðarbunga Dec 21, 2021 1:21 pm (GMT +0) (5 km E)All earthquakes at Bardarbunga

Campi Flegrei (Phlegrean Fields) volcano (Italy): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 19 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 1 km distance NNW from the volcano.
Earthquake details:
Unconfirmed quake or seismic-like event reported: 12 km west of Naples, Neapel, Campania, Italy, Dec 22, 2021 12:30 am (GMT +1) (1 km NNW)All earthquakes at Campi Flegrei (Phlegrean Fields)

Cerro Santiago 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 4 km distance SW from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 0.8 km north of Jutiapa, Departamento de Jutiapa, Guatemala, Dec 21, 2021 1:11 pm (GMT -6) (4 km SW)All earthquakes at Cerro Santiago

Clear Lake volcano (California): 34 earthquakes up to magnitude 1.9

Possible earthquake swarm: 34 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 1 hour 57 minutes ago. Hypocenter depths ranged between 3.5 and 0.2 km.
Earthquake details: (only 5 largest)
1.9 quake 7km NW of The Geysers, CA, Dec 21, 2021 12:52 am (GMT -8) (17 km SSW)1.6 quake 5km NW of The Geysers, CA, Dec 21, 2021 7:45 am (GMT -8) (19 km S)1.5 quake 5km NW of The Geysers, CA, Dec 21, 2021 7:43 am (GMT -8) (19 km S)1.4 quake 6km NW of The Geysers, CA, Dec 21, 2021 11:38 am (GMT -8) (17 km S)1.4 quake 3km NW of The Geysers, CA, Dec 21, 2021 4:10 am (GMT -8) (19 km S)All earthquakes at Clear Lake

Etna volcano (Italy): 2 earthquakes up to magnitude 3.0

2 earthquakes occurred near (under) the volcano during 16 hours, the last being recorded quake 1 hour 7 minutes ago. Hypocenter depths ranged between 10.0 and 10.0 km.
Earthquake details:
Unconfirmed quake or seismic-like event reported: 30 km north of Catania, Sicily, Italy, Dec 21, 2021 11:43 pm (GMT +1) (0 km SW)Reported seismic-like event (likely no quake): 30 km north of Catania, Sicily, Italy, Dec 21, 2021 7:42 am (GMT +1) (0 km SW)All earthquakes at Etna

Fagradalsfjall volcano (Reykjanes Peninsula, Iceland): 81 earthquakes up to magnitude 3.3

Possible earthquake swarm: 81 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 20 minutes ago. Hypocenter depths ranged between 10.3 and 1.1 km.
Earthquake details: (only 5 largest)
3.3 quake Iceland: 3.1 Km SSW of Keilir Dec 21, 2021 11:21 pm (GMT +0) (4 km NE)3.0 quake Iceland: 2.9 Km SW of Keilir Dec 21, 2021 10:49 pm (GMT +0) (4 km NE)2.0 quake Iceland: 2.7 Km SW of Keilir Dec 21, 2021 10:41 pm (GMT +0) (4 km NE)1.8 quake Iceland: 2.6 Km ENE of Fagradalsfjall Dec 21, 2021 8:28 pm (GMT +0) (3 km NE)1.6 quake Iceland: 2.6 Km WSW of Keilir Dec 21, 2021 11:08 pm (GMT +0) (5 km NNE)All earthquakes at Fagradalsfjall

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

A magnitude 2.3 earthquake occurred at the volcano 17 hours ago. The quake, which might be volcanic in origin, was located at a depth of 11.1 km depth at 14 km distance W from the volcano.
Earthquake details:
2.3 quake 2 Km WSW of Kalaoa, Hawaii, Dec 20, 2021 9:06 pm (GMT -10) (14 km W)All earthquakes at Hualalai

Krísuvík volcano (Reykjanes Peninsula, Iceland): 31 earthquakes up to magnitude 1.5

Possible earthquake swarm: 31 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 20 minutes ago. Hypocenter depths ranged between 8.1 and 1.1 km.
Earthquake details: (only 5 largest)
1.5 quake Iceland: 3.3 Km ESE of Keilir Dec 21, 2021 11:16 pm (GMT +0) (0 km NW)1.4 quake Iceland: 0.6 Km NNW of Keilir Dec 21, 2021 11:30 pm (GMT +0) (4 km WNW)1.4 quake Iceland: 3.5 Km ESE of Keilir Dec 21, 2021 11:02 pm (GMT +0) (1 km SSE)1.3 quake Iceland: 2.9 Km E of Keilir Dec 21, 2021 11:17 pm (GMT +0) (1 km NW)1.1 quake Iceland: 2.0 Km N of Krýsuvík Dec 21, 2021 8:51 pm (GMT +0) (3 km SSE)All earthquakes at Krísuvík

La Palma volcano (Canary Islands): 17 earthquakes up to magnitude 3.0

Possible earthquake swarm: 17 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 51 minutes ago. Hypocenter depths ranged between 38.2 and 1.0 km.
Earthquake details: (only 5 largest)
3.0 quake La Palma Island, 15 km southeast of Los Llanos de Aridane, Spain, Dec 21, 2021 2:15 pm (GMT +0) (3 km SSE)2.7 quake La Palma Island, 14 km southeast of Los Llanos de Aridane, Spain, Dec 21, 2021 4:28 pm (GMT +0) (2 km S)2.4 quake La Palma Island, 14 km southeast of Los Llanos de Aridane, Spain, Dec 21, 2021 1:01 pm (GMT +0) (2 km SSE)2.3 quake La Palma Island, 13 km southeast of Los Llanos de Aridane, Spain, Dec 20, 2021 11:57 pm (GMT +0) (2 km S)2.2 quake La Palma Island, 13 km southeast of Los Llanos de Aridane, Spain, Dec 21, 2021 3:25 pm (GMT +0) (2 km S)All earthquakes at La Palma

Licto volcano (Ecuador): magnitude 3.5 earthquake

A magnitude 3.5 earthquake occurred at the volcano 12 hours ago. The quake, which might be volcanic in origin, was located at a depth of 3.0 km depth at 17 km distance SSE from the volcano.
Earthquake details:
3.5 quake 30 km southeast of Riobamba, Provincia del Chimborazo, Ecuador, Dec 21, 2021 7:04 am (GMT -5) (17 km SSE)All earthquakes at Licto

Loihi volcano (Hawai'i (Big Island)): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 23 hours ago. The quake, which might be volcanic in origin, was located at a depth of 9.4 km depth at 14 km distance SE from the volcano.
Earthquake details:
3.0 quake North Pacific Ocean, 55 mi south of Hawaiian Paradise Park, Hawaii County, USA, Dec 20, 2021 2:48 pm (GMT -10) (14 km SE)All earthquakes at Loihi

Sibualbuali volcano (Sumatra): magnitude 2.6 earthquake

A magnitude 2.6 earthquake occurred at the volcano 4 hours ago. The quake, which might be volcanic in origin, was located at a depth of 16.0 km depth at 17 km distance SE from the volcano.
Earthquake details:
2.6 quake 11 km northeast of Padangsidempuan, North Sumatra, Indonesia, Dec 22, 2021 2:45 am (GMT +7) (17 km SE)All earthquakes at Sibualbuali

Taal volcano (Luzon Island): 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 18 km distance E from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 4.7 km north of Lipa City, Batangas, Calabarzon, Philippines, Dec 21, 2021 9:02 pm (GMT +8) (18 km E)All earthquakes at Taal

Vatnafjöll volcano (Iceland): 14 earthquakes up to magnitude 3.0

Possible earthquake swarm: 14 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 6.6 and 4.9 km.
Earthquake details: (only 5 largest)
3.0 quake Iceland: 1.3 Km S of Vatnafjöll Dec 21, 2021 9:29 am (GMT +0) (2 km SSE)1.9 quake Iceland: 2.3 Km SSW of Vatnafjöll Dec 21, 2021 9:40 am (GMT +0) (3 km S)1.4 quake Iceland: 1.9 Km SSW of Vatnafjöll Dec 21, 2021 7:53 pm (GMT +0) (2 km SSE)1.2 quake Iceland: 1.4 Km SSW of Vatnafjöll Dec 21, 2021 9:49 am (GMT +0) (2 km SSE)1.1 quake Iceland: 1.1 Km SSW of Vatnafjöll Dec 21, 2021 2:03 am (GMT +0) (1 km SSE)All earthquakes at Vatnafjöll
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/163528/Volcano-earthquake-report-for-Tuesday-21-Dec-2021.html