Volcano earthquake report for Monday, 1 Mar 2021
World map showing volcanoes with shallow (less than 20 km) earthquakes within 20 km radius during the past 24 hours on 1 Mar 2021 Number in brackets indicate nr of quakes.

Quakes detected near: Brennisteinsfjöll (28 quakes between mag 0.3-3.3), Cabalian (2 quakes between mag 2.3-2.4), Cerro Negro de Mayasquer (1 quake mag 3.6), Clear Lake (32 quakes between mag 0.3-2.5), Coso (1 quake mag 2.1), Eldey (24 quakes between mag 0.7-3.6)
Etna (1 quake mag 1.2), Grímsnes (1 quake mag 1.6), Hrómundartindur (2 quakes between mag 0.7-1.8), Hudson (2 quakes between mag 2.6-4.6), Kilauea (2 quakes between mag 0.5-2.8), Krísuvík (1094 quakes between mag 0.1-5.1), Kurikoma (1 quake mag 2.6), Ljósufjöll (1 quake mag 2.0), Long Valley (3 quakes between mag 0.3-1.9), Mauna Loa (18 quakes between mag 0.6-2.3), Prestahnukur (2 quakes between mag 2.0-3.0), Reykjanes (54 quakes between mag 0.2-2.5), Salton Buttes (1 quake mag 1.3), Taupo (9 quakes between mag 1.0-2.1), Toba (1 quake mag 2.0), White Island (1 quake mag 1.9) (updated 18h50)

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:


Brennisteinsfjöll volcano (Iceland): 28 earthquakes up to magnitude 3.3

Possible earthquake swarm: 28 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 32 minutes ago. Hypocenter depths ranged between 15.5 and 1.1 km.
Earthquake details: (only 5 largest)
3.3 quake 4.6 Km ESE of Keilir, Iceland, 28 Feb 2021 7:50 pm (GMT +0) (5 km W)2.0 quake 8.3 Km SSW of Helgafell, Iceland, 1 Mar 2021 2:01 am (GMT +0) (5 km WNW)1.9 quake 14.0 Km SE of Krýsuvík, Iceland, 1 Mar 2021 1:59 am (GMT +0) (14 km S)1.6 quake 6.0 Km SW of Helgafell, Iceland, 28 Feb 2021 8:08 pm (GMT +0) (7 km NW)1.6 quake 4.6 Km W of Helgafell, Iceland, 28 Feb 2021 8:58 pm (GMT +0) (11 km NNW)All earthquakes at Brennisteinsfjöll

Cabalian volcano (Central Philippines): 2 earthquakes up to magnitude 2.4

2 earthquakes occurred near (under) the volcano at nearly the same time (21:15 UTC). Hypocenter depths ranged between 8.0 and 3.0 km.
Earthquake details:
2.4 quake Philippines Sea, 56 km northwest of Surigao City, Philippines, 01 March 2021 - 05:15 AM (PST) (7 km SE)2.3 quake Philippines Sea, 9.2 km east of Hinundayan, Philippines, 1 Mar 2021 5:15 am (GMT +8) (16 km NE)All earthquakes at Cabalian

Cerro Negro de Mayasquer volcano (Colombia): magnitude 3.6 earthquake

A magnitude 3.6 earthquake occurred at the volcano 11 hours ago. The quake, which might be volcanic in origin, was located at a depth of 3.0 km depth at 1 km distance SW from the volcano.
Earthquake details:
3.6 quake 29 km west of Tulcan, Provincia del Carchi, Ecuador, 1 Mar 2021 3:13 am (GMT -5) (1 km SW)All earthquakes at Cerro Negro de Mayasquer

Clear Lake volcano (California): 32 earthquakes up to magnitude 2.5

Possible earthquake swarm: 32 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 1 hour 13 minutes ago. Hypocenter depths ranged between 3.7 and 0.3 km.
Earthquake details: (only 5 largest)
2.5 quake 5km WNW of Cobb, CA, USA, 1 Mar 2021 9:10 am (GMT -8) (15 km S)1.6 quake 5km WNW of Cobb, CA, USA, 1 Mar 2021 9:30 am (GMT -8) (15 km S)1.6 quake 2km NNW of Lower Lake, CA, USA, 28 Feb 2021 3:12 pm (GMT -8) (14 km ESE)1.6 quake 7km NW of The Geysers, CA, USA, 1 Mar 2021 1:08 am (GMT -8) (18 km SSW)1.4 quake 8km NW of The Geysers, CA, USA, 28 Feb 2021 6:26 pm (GMT -8) (16 km SSW)All earthquakes at Clear Lake

Coso volcano (California): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 49 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 6.8 km depth at 15 km distance SSE from the volcano.
Earthquake details:
2.1 quake 15km ESE of Little Lake, CA, USA, 1 Mar 2021 10:01 am (GMT -8) (15 km SSE)All earthquakes at Coso

Eldey volcano (Iceland): 24 earthquakes up to magnitude 3.6

Possible earthquake swarm: 24 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 11.1 and 1.1 km.
Earthquake details: (only 5 largest)
3.6 quake 8.9 Km NNE of Eldey, Iceland, 1 Mar 2021 12:39 am (GMT +0) (11 km NNE)3.3 quake 5.0 Km W of Reykjanestá, Iceland, 1 Mar 2021 3:33 pm (GMT +0) (11 km NE)2.8 quake 8.7 Km W of Reykjanestá, Iceland, 1 Mar 2021 12:50 am (GMT +0) (11 km NE)2.7 quake 8.9 Km NNE of Eldey, Iceland, 1 Mar 2021 12:49 am (GMT +0) (11 km NE)2.7 quake 5.0 Km W of Reykjanestá, Iceland, 1 Mar 2021 2:21 pm (GMT +0) (10 km NE)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.

Hudson volcano (Southern Chile and Argentina): 2 earthquakes up to magnitude 4.6

2 earthquakes occurred near (under) the volcano during 1 hour 25 minutes, the last being recorded quake 16 hours ago. Hypocenter depths ranged between 7.6 and 6.1 km.
Earthquake details:
4.6 quake 58 km south of Puerto Aisén, Provincia de Aisén, Aysén, Chile, 28 Feb 2021 10:34 pm (GMT -3) (3 km ENE)2.6 quake 74 km southwest of Coyhaique, Aysén, Chile, 28 Feb 2021 11:59 pm (GMT -3) (6 km E)All earthquakes at Hudson

Kilauea volcano (Hawai'i (Big Island)): 2 earthquakes up to magnitude 2.8

2 earthquakes occurred near (under) the volcano during 5 hours, the last being recorded quake 17 hours ago. Hypocenter depths ranged between 1.5 and 0.7 km.
Earthquake details:
2.8 quake 30 mi south of Hilo, Hawaii County, USA, 28 Feb 2021 10:53 am (GMT -10) (13 km SE)0.5 quake Island of Hawaii, Hawaii, USA, 28 Feb 2021 3:31 pm (GMT -10) (1 km ESE)All earthquakes at Kilauea

Krísuvík volcano (Iceland): 1094 earthquakes up to magnitude 5.1

Possible earthquake swarm: 1094 earthquakes occurred near (under) the volcano during 24 hours, the last being recorded quake 18 minutes ago. Hypocenter depths ranged between 16.3 and 0.0 km.
Earthquake details: (only 5 largest)
5.1 quake 1.0 Km E of Keilir, Iceland, 1 Mar 2021 4:35 pm (GMT +0) (6 km WNW)4.9 quake 2.6 Km SW of Keilir, Iceland, 1 Mar 2021 1:31 am (GMT +0) (4 km W)4.7 quake 1.6 Km W of Keilir, Iceland, 28 Feb 2021 7:01 pm (GMT +0) (5 km W)4.2 quake 1.9 Km SW of Keilir, Iceland, 1 Mar 2021 2:12 pm (GMT +0) (5 km W)4.1 quake 3.3 Km SW of Keilir, Iceland, 1 Mar 2021 12:12 pm (GMT +0) (5 km WSW)All earthquakes at Krísuvík

Kurikoma volcano (Honshu): magnitude 2.6 earthquake

A magnitude 2.6 earthquake occurred at the volcano 14 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.8 km depth at 6 km distance ENE from the volcano.
Earthquake details:
2.6 quake 24 km west of Ichinoseki, Iwate, Japan, 1 Mar 2021 1:25 pm (GMT +9) (6 km ENE)All earthquakes at Kurikoma

Mauna Loa volcano (Hawai'i (Big Island)): 18 earthquakes up to magnitude 2.3

Possible earthquake swarm: 18 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 43 minutes ago. Hypocenter depths ranged between 3.1 and 0.0 km.
Earthquake details: (only 5 largest)
2.3 quake 26 Km E of Honaunau-Napoopoo, Hawaii, USA, 1 Mar 2021 12:38 am (GMT -10) (1 km SSW)1.9 quake 30 Km E of Honaunau-Napoopoo, Hawaii, USA, 28 Feb 2021 10:30 pm (GMT -10) (4 km ENE)1.8 quake 26 Km E of Honaunau-Napoopoo, Hawaii, USA, 1 Mar 2021 8:06 am (GMT -10) (5 km S)1.8 quake 27 Km E of Honaunau-Napoopoo, Hawaii, USA, 1 Mar 2021 5:06 am (GMT -10) (1 km SE)1.7 quake 27 Km E of Honaunau-Napoopoo, Hawaii, USA, 28 Feb 2021 4:54 pm (GMT -10) (2 km S)All earthquakes at Mauna Loa

Prestahnukur volcano (Iceland): 2 earthquakes up to magnitude 3.0

2 earthquakes occurred near (under) the volcano at nearly the same time (21:47 UTC). Hypocenter depths ranged between 2.7 and 1.2 km.
Earthquake details:
3.0 quake 14.6 Km N of Skjaldbreið, Iceland, 28 Feb 2021 9:47 pm (GMT +0) (13 km SW)2.0 quake 15.2 Km N of Skjaldbreið, Iceland, 28 Feb 2021 9:47 pm (GMT +0) (15 km SW)All earthquakes at Prestahnukur

Reykjanes volcano (Iceland): 54 earthquakes up to magnitude 2.5

Possible earthquake swarm: 54 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 1 hour 22 minutes ago. Hypocenter depths ranged between 13.7 and 0.1 km.
Earthquake details: (only 5 largest)
2.5 quake 5.5 Km NNE of Grindavík, Iceland, 1 Mar 2021 1:26 pm (GMT +0) (6 km E)2.4 quake 4.9 Km N of Grindavík, Iceland, 1 Mar 2021 4:01 am (GMT +0) (3 km ESE)2.2 quake 4.1 Km NW of Grindavík, Iceland, 28 Feb 2021 9:08 pm (GMT +0) (4 km S)2.1 quake 4.4 Km NNW of Grindavík, Iceland, 28 February 2021 20:52 GMT (3 km SE)2.0 quake 4.0 Km WSW of Fagradalsfjall, Iceland, 1 March 2021 04:46 GMT (8 km E)All earthquakes at Reykjanes

Taupo volcano (New Zealand): 9 earthquakes up to magnitude 2.1

9 earthquakes occurred near (under) the volcano during 6 hours, the last being recorded quake 16 hours ago. Hypocenter depths ranged between 5.0 and 2.1 km.
Earthquake details: (only 5 largest)
2.1 quake 24 km southwest of Taupo, Waikato, New Zealand, 1 Mar 2021 11:43 am (GMT +13) (9 km WSW)2.0 quake 24 km southwest of Taupo, Waikato, New Zealand, 1 Mar 2021 11:59 am (GMT +13) (8 km WSW)1.8 quake New Zealand 1 Mar 2021 10:26 am (GMT +13) (9 km WSW)1.4 quake New Zealand 1 Mar 2021 4:18 pm (GMT +13) (7 km SW)1.4 quake New Zealand 1 Mar 2021 11:53 am (GMT +13) (10 km WSW)All earthquakes at Taupo
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/123093/Volcano-earthquake-report-for-Monday-1-Mar-2021.html