Volcano earthquake report for Tuesday, 21 Feb 2023
World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 21 Feb 2023 Number in brackets indicate nr of quakes.

Quakes detected near: Aniakchak (1 quake mag 2.1), Auckland Field (1 quake mag 3.0), Bardarbunga (16 quakes between mag 0.1-4.9), Barva (3 quakes between mag 2.4-3.3), Cabalian (1 quake mag 2.2), Cerro el Ciguatepe (1 quake mag 3.1)
Chaîne des Puys (1 quake mag 1.0), Clear Lake (20 quakes between mag 0.2-2.2), Eldey (57 quakes between mag 0.1-3.1), Etna (1 quake mag 3.0), Grímsnes (2 quakes between mag 0.1-1.4), Irazu (2 quakes between mag 2.6-3.0), Kilauea (1 quake mag 2.1), Koruhüyüğü (2 quakes between mag 1.4-2.2), La Palma (1 quake mag 1.6), Laacher See (1 quake mag 1.7), Ljósufjöll (1 quake mag 1.4), Machin (1 quake mag 1.3), Martin (3 quakes between mag 0.2-1.1), Mount Rainier (5 quakes between mag 0.3-1.8), Novarupta (1 quake mag 1.4), Paco (1 quake mag 2.3), Poas (1 quake mag 3.1), Ranakah (1 quake mag 2.8), Reykjanes (2 quakes between mag 0.7-1.9), San Cristobal (1 quake mag 2.6), Serua (1 quake mag 5.0), Tromen (1 quake mag 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:



Aniakchak volcano (Alaska Peninsula): 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 4.7 km depth at 18 km distance E from the volcano.
Earthquake details:
2.1 quake 29 mi east of Port Heiden, Lake and Peninsula, Alaska, USA, Feb 21, 2023 2:32 am (GMT -9) (18 km E)
All earthquakes at Aniakchak

Auckland Field volcano (North Island): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 15 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 11 km distance WNW from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 19 km southeast of Riverhead, akland, Auckland, New Zealand, Feb 21, 2023 10:02 pm (GMT +13) (11 km WNW)
All earthquakes at Auckland Field

Bardarbunga volcano (Iceland): 16 earthquakes up to magnitude 4.9

Possible earthquake swarm: 16 earthquakes occurred near (under) the volcano during 8 hours, the last being recorded quake 11 hours ago. Hypocenter depths ranged between 11.2 and 0.1 km.
Earthquake details: (only 5 largest)
4.9 quake Iceland: 3.7 Km N of Bárðarbunga Feb 21, 2023 8:41 am (GMT +0) (5 km N)
3.0 quake Iceland: 3.1 Km NNE of Bárðarbunga Feb 21, 2023 8:41 am (GMT +0) (4 km NNE)
2.7 quake Iceland: 4.6 Km NE of Bárðarbunga Feb 21, 2023 9:27 am (GMT +0) (6 km NE)
2.6 quake Iceland: 3.8 Km NNE of Bárðarbunga Feb 21, 2023 8:42 am (GMT +0) (5 km NNE)
2.5 quake Iceland: 4.7 Km E of Bárðarbunga Feb 21, 2023 8:49 am (GMT +0) (4 km NE)
All earthquakes at Bardarbunga

Barva volcano (Costa Rica): 3 earthquakes up to magnitude 3.3

3 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 1 hour 18 minutes ago. Hypocenter depths ranged between 5.0 and 3.0 km.
Earthquake details:
3.3 quake Provincia de Heredia, 32 km north of San Jose, San José, Costa Rica, Feb 21, 2023 4:32 pm (GMT -6) (10 km NNW)
3.3 quake Provincia de Heredia, 31 km north of San Jose, San José, Costa Rica, Feb 20, 2023 7:28 pm (GMT -6) (9 km NNW)
2.4 quake Provincia de Heredia, 23 km north of Alajuela, Costa Rica, Feb 20, 2023 7:28 pm (GMT -6) (8 km NNW)
All earthquakes at Barva

Cabalian volcano (Central Philippines): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 24 hours ago. The quake, which might be volcanic in origin, was located at a depth of 14.0 km depth at 14 km distance NNW from the volcano.
Earthquake details:
2.2 quake 20 km east of Sogod, Southern Leyte, Eastern Visayas, Philippines, Feb 21, 2023 8:01 am (GMT +8) (14 km NNW)
All earthquakes at Cabalian

Cerro el Ciguatepe volcano (Nicaragua): magnitude 3.1 earthquake

A magnitude 3.1 earthquake occurred at the volcano 3 hours ago. The quake, which might be volcanic in origin, was located at a depth of 13.0 km depth at 11 km distance ENE from the volcano.
Earthquake details:
3.1 quake 40 km north of Tipitapa, Departamento de Managua, Nicaragua, Feb 21, 2023 3:06 pm (GMT -6) (11 km ENE)
All earthquakes at Cerro el Ciguatepe

Clear Lake volcano (California): 20 earthquakes up to magnitude 2.2

Possible earthquake swarm: 20 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 28 minutes ago. Hypocenter depths ranged between 10.2 and 0.5 km.
Earthquake details: (only 5 largest)
2.2 quake 13 mi southwest of Clearlake, Lake County, California, USA, Feb 21, 2023 2:20 am (GMT -8) (15 km SSW)
1.6 quake 8km W of Cobb, CA, Feb 21, 2023 2:24 am (GMT -8) (16 km SSW)
1.3 quake 2km N of The Geysers, CA, Feb 21, 2023 8:28 am (GMT -8) (19 km S)
1.2 quake 8km NW of The Geysers, CA, Feb 21, 2023 2:45 pm (GMT -8) (16 km SSW)
1.2 quake 8km NW of The Geysers, CA, Feb 21, 2023 3:11 pm (GMT -8) (16 km SSW)
All earthquakes at Clear Lake

Eldey volcano (Iceland): 57 earthquakes up to magnitude 3.1

Possible earthquake swarm: 57 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 1 hour 52 minutes ago. Hypocenter depths ranged between 17.8 and 0.1 km.
Earthquake details: (only 5 largest)
3.1 quake Iceland: 4.2 Km NW of Geirfuglasker Feb 21, 2023 3:30 pm (GMT +0) (13 km W)
2.8 quake Iceland: 2.7 Km W of Reykjanestá Feb 21, 2023 4:41 am (GMT +0) (14 km NE)
2.6 quake Iceland: 4.4 Km NW of Geirfuglasker Feb 21, 2023 1:48 pm (GMT +0) (13 km W)
2.4 quake Iceland: 2.9 Km W of Reykjanestá Feb 21, 2023 4:40 am (GMT +0) (14 km NE)
2.3 quake Iceland: 4.5 Km NW of Geirfuglasker Feb 21, 2023 4:57 am (GMT +0) (14 km W)
All earthquakes at Eldey
Eldey is located at the beginning of the Reykjanes Ridge off the SW tip of Iceland. Its highest elevation is the top of Eldey Island, but most of the volcanic edifice is submerged.

Several eruptions occurred in historic times, last in 1926.

Etna volcano (Italy): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 6 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 0 km distance SW from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 49 km southeast of Capo d'Orlando, Province of Messina, Sicily, Italy, Feb 21, 2023 6:20 pm (GMT +1) (0 km SW)
All earthquakes at Etna

Irazu volcano (Costa Rica): 2 earthquakes up to magnitude 3.0

2 earthquakes occurred near (under) the volcano during 3 hours, the last being recorded quake 17 hours ago. Hypocenter depths ranged between 3.0 and 3.0 km.
Earthquake details:
3.0 quake 23 km east of San Jose, San José, Costa Rica, Feb 20, 2023 9:45 pm (GMT -6) (4 km WNW)
2.6 quake 23 km east of San Jose, San José, Costa Rica, Feb 21, 2023 1:09 am (GMT -6) (5 km NW)
All earthquakes at Irazu

Kilauea volcano (Hawai'i (Big Island)): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 22 hours ago. The quake, which might be volcanic in origin, was located at a depth of 12.8 km depth at 3 km distance ENE from the volcano.
Earthquake details:
2.1 quake 25 mi southwest of Hilo, Hawaii County, USA, Feb 20, 2023 3:31 pm (GMT -10) (3 km ENE)
All earthquakes at Kilauea

Koruhüyüğü volcano (Turkey): 2 earthquakes up to magnitude 2.2

2 earthquakes occurred near (under) the volcano during 17 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 9.8 and 4.0 km.
Earthquake details:
2.2 quake 23 km east of Dörtyol, Hatay, Turkey, Feb 21, 2023 6:48 am (GMT +3) (11 km W)
1.4 quake Turkey: ALTINUZUM-ISLAHIYE (GAZIANTEP) Feb 21, 2023 11:20 pm (GMT +3) (14 km N)
All earthquakes at Koruhüyüğü

Paco volcano (Mindanao): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 13 hours ago. The quake, which might be volcanic in origin, was located at a depth of 26.0 km depth at 9 km distance ENE from the volcano.
Earthquake details:
2.3 quake 22 km southeast of Surigao City, Philippines, Feb 21, 2023 6:49 pm (GMT +8) (9 km ENE)
All earthquakes at Paco

Poas volcano (Costa Rica): 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 3.0 km depth at 9 km distance ENE from the volcano.
Earthquake details:
3.1 quake Provincia de Alajuela, 33 km north of San Jose, San José, Costa Rica, Feb 21, 2023 3:44 pm (GMT -6) (9 km ENE)
All earthquakes at Poas

Ranakah volcano (Flores): magnitude 2.8 earthquake

A magnitude 2.8 earthquake occurred at the volcano 21 hours ago. The quake, which might be volcanic in origin, was located at a depth of 44.0 km depth at 12 km distance N from the volcano.
Earthquake details:
2.8 quake 14 km northeast of Ruteng, Kabupaten Manggarai, East Nusa Tenggara, Indonesia, Feb 21, 2023 10:49 am (GMT +8) (12 km N)
All earthquakes at Ranakah

San Cristobal volcano (Nicaragua): magnitude 2.6 earthquake

A magnitude 2.6 earthquake occurred at the volcano 20 hours ago. The quake, which might be volcanic in origin, was located at a depth of 6.0 km depth at 7 km distance E from the volcano.
Earthquake details:
2.6 quake 22 km northeast of Chinandega, Nicaragua, Feb 20, 2023 9:56 pm (GMT -6) (7 km E)
All earthquakes at San Cristobal

Serua volcano (Banda Sea): magnitude 5.0 earthquake

A magnitude 5.0 earthquake occurred at the volcano 8 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.5 km depth at 14 km distance NE from the volcano.
Earthquake details:
5.0 quake Banda Sea, Indonesia, Feb 22, 2023 1:15 am (GMT +9) (14 km NE)
All earthquakes at Serua

Tromen volcano (Central Chile and Argentina): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 4 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 16 km distance NE from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 25 km south of Barrancas, Departamento de Pehuenches, Neuquen, Argentina, Feb 21, 2023 4:30 pm (GMT -3) (16 km NE)
All earthquakes at Tromen
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/204666/Volcano-earthquake-report-for-Tuesday-21-Feb-2023.html