Volcano earthquake report for Tuesday, 23 Nov 2021
World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 23 Nov 2021 Number in brackets indicate nr of quakes.

Quakes detected near: Askja (9 quakes between mag 0.3-1.4), Bardarbunga (2 quakes between mag 0.7-1.3), Binuluan (1 quake mag 3.3), Clear Lake (25 quakes between mag 0.4-2.0), Coso (5 quakes between mag 0.6-1.2), Eldey (6 quakes between mag 1.6-2.1)
Etna (2 quakes between mag 1.4-3.0), Fagradalsfjall (6 quakes between mag 0.5-1.4), Herdubreid (15 quakes between mag 0.2-1.3), Karapinar (1 quake mag 1.5), Katla (4 quakes between mag 0.5-1.8), Kilauea (2 quakes between mag 1.9-2.3), Krísuvík (2 quakes between mag 0.4-1.0), La Palma (90 quakes between mag 2.2-4.8), Loki-Fögrufjöll volcano (2 quakes between mag 0.8-1.2), Long Valley (2 quakes between mag 0.3-1.6), Methana (1 quake mag 1.8), Nisyros (1 quake mag 2.2), Prestahnukur (1 quake mag 1.6), Roundtop (1 quake mag 2.1), Spurr (1 quake mag 1.7), Tecapa (1 quake mag 3.5), Telica (1 quake mag 1.5), Tenerife (3 quakes between mag 0.4-1.3), Vatnafjöll (12 quakes between mag 0.2-2.0), Vesuvius (3 quakes between mag 0.3-1.1) (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:


Binuluan volcano (Luzon Island): magnitude 3.3 earthquake

A magnitude 3.3 earthquake occurred at the volcano 21 hours ago. The quake, which might be volcanic in origin, was located at a depth of 3.0 km depth at 11 km distance WNW from the volcano.
Earthquake details:
3.3 quake 16 km west of Pasil, Kalinga, Cordillera, Philippines, Nov 23, 2021 11:07 am (GMT +8) (11 km WNW)All earthquakes at Binuluan

Clear Lake volcano (California): 25 earthquakes up to magnitude 2.0

Possible earthquake swarm: 25 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 21 minutes ago. Hypocenter depths ranged between 5.6 and 0.3 km.
Earthquake details: (only 5 largest)
2.0 quake 6km WNW of Cobb, CA, Nov 23, 2021 2:28 am (GMT -8) (15 km S)1.6 quake 7km W of Cobb, CA, Nov 22, 2021 6:23 pm (GMT -8) (16 km S)1.6 quake 7km W of Cobb, CA, Nov 23, 2021 3:35 am (GMT -8) (16 km S)1.4 quake 4km W of Cobb, CA, Nov 22, 2021 9:29 pm (GMT -8) (16 km S)1.2 quake 6km WNW of The Geysers, CA, Nov 23, 2021 9:02 am (GMT -8) (18 km SSW)All earthquakes at Clear Lake

Eldey volcano (Iceland): 6 earthquakes up to magnitude 2.1

6 earthquakes occurred near (under) the volcano during 10 hours, the last being recorded quake 1 hour 47 minutes ago. Hypocenter depths ranged between 15.9 and 9.5 km.
Earthquake details: (only 5 largest)
2.1 quake Iceland: 5.2 Km SSE of Geirfuglasker Nov 23, 2021 4:08 pm (GMT +0) (16 km SW)2.0 quake Iceland: 1.9 Km SSW of Geirfugladrangur Nov 23, 2021 10:02 pm (GMT +0) (17 km WSW)1.8 quake Iceland: 4.5 Km S of Geirfugladrangur Nov 23, 2021 10:02 pm (GMT +0) (17 km SW)1.8 quake Iceland: 6.0 Km SSE of Geirfugladrangur Nov 23, 2021 2:43 pm (GMT +0) (17 km SW)1.8 quake Iceland: 3.9 Km N of Geirfugladrangur Nov 23, 2021 12:21 pm (GMT +0) (15 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): 2 earthquakes up to magnitude 3.0

2 earthquakes occurred near (under) the volcano during 1 hour 59 minutes, the last being recorded quake 22 hours ago. Hypocenter depths ranged between 18.1 and 10.0 km.
Earthquake details:
Reported seismic-like event (likely no quake): 30 km north of Catania, Sicily, Italy, Nov 23, 2021 1:19 am (GMT +1) (0 km SW)1.4 quake Italy: 3 Km E Linguaglossa (CT) Nov 23, 2021 3:17 am (GMT +1) (19 km NE)All earthquakes at Etna

Herdubreid volcano (Iceland): 15 earthquakes up to magnitude 1.3

Possible earthquake swarm: 15 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 26 minutes ago. Hypocenter depths ranged between 10.6 and 2.7 km.
Earthquake details: (only 5 largest)
1.3 quake Iceland: 4.1 Km NNW of Herðubreið Nov 23, 2021 11:13 am (GMT +0) (3 km NNW)0.8 quake Iceland: 5.6 Km W of Herðubreiðartögl Nov 23, 2021 11:23 pm (GMT +0) (13 km SW)0.7 quake Iceland: 3.7 Km NW of Herðubreiðarlindir Nov 23, 2021 3:30 pm (GMT +0) (4 km NE)0.7 quake Iceland: 4.7 Km SE of Herðubreið Nov 23, 2021 10:18 am (GMT +0) (5 km SE)0.7 quake Iceland: 6.4 Km ENE of Herðubreiðartögl Nov 23, 2021 7:25 am (GMT +0) (10 km SSE)All earthquakes at Herdubreid

Kilauea volcano (Hawai'i (Big Island)): 2 earthquakes up to magnitude 2.3

2 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 1 hour 38 minutes ago. Hypocenter depths ranged between 8.8 and 4.2 km.
Earthquake details:
2.3 quake 17 Km NNE of Pāhala, Hawaii, Nov 22, 2021 5:45 pm (GMT -10) (17 km WSW)1.9 quake 11 Km WSW of Volcano, Hawaii, Nov 23, 2021 12:12 pm (GMT -10) (5 km W)All earthquakes at Kilauea

La Palma volcano (Canary Islands): 90 earthquakes up to magnitude 4.8

Possible earthquake swarm: 90 earthquakes occurred near (under) the volcano during 24 hours, the last being recorded quake 14 minutes ago. Hypocenter depths ranged between 39.0 and 9.0 km.
Earthquake details: (only 5 largest)
4.8 quake La Palma Island, 11 km southeast of Los Llanos de Aridane, Spain, Nov 23, 2021 1:03 am (GMT +0) (1 km NNE)4.7 quake La Palma Island, 11 km southeast of Los Llanos de Aridane, Spain, Nov 23, 2021 1:03 am (GMT +0) (4 km NNE)4.4 quake La Palma Island, 13 km southeast of Los Llanos de Aridane, Spain, Nov 23, 2021 12:48 am (GMT +0) (2 km ESE)3.7 quake La Palma Island, 13 km southeast of Los Llanos de Aridane, Spain, Nov 23, 2021 2:14 am (GMT +0) (2 km E)3.7 quake La Palma Island, 12 km southeast of Los Llanos de Aridane, Spain, Nov 23, 2021 7:50 pm (GMT +0) (4 km ENE)All earthquakes at La Palma

Nisyros volcano (Greece): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 11 hours ago. The quake, which might be volcanic in origin, was located at a depth of 9.8 km depth at 8 km distance SE from the volcano.
Earthquake details:
2.2 quake Aegean Sea, 42 km south of Kos, Dodecanese, South Aegean, Greece, Nov 23, 2021 3:19 pm (GMT +2) (8 km SE)All earthquakes at Nisyros

Roundtop volcano (Aleutian Islands): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 3 hours ago. The quake, which might be volcanic in origin, was located at a depth of 23.0 km depth at 17 km distance SE from the volcano.
Earthquake details:
2.1 quake 18 Km S of False Pass, Alaska, Nov 23, 2021 12:04 pm (GMT -9) (17 km SE)All earthquakes at Roundtop

Tecapa volcano (El Salvador): magnitude 3.5 earthquake

A magnitude 3.5 earthquake occurred at the volcano 8 hours ago. The quake, which might be volcanic in origin, was located at a depth of 3.0 km depth at 16 km distance NW from the volcano.
Earthquake details:
3.5 quake 22 km east of San Vicente, El Salvador, Nov 23, 2021 9:27 am (GMT -6) (16 km NW)All earthquakes at Tecapa

Vatnafjöll volcano (Iceland): 12 earthquakes up to magnitude 2.0

Possible earthquake swarm: 12 earthquakes occurred near (under) the volcano during 12 hours, the last being recorded quake 11 hours ago. Hypocenter depths ranged between 8.4 and 3.9 km.
Earthquake details: (only 5 largest)
2.0 quake Iceland: 2.5 Km SW of Vatnafjöll Nov 23, 2021 10:21 am (GMT +0) (2 km S)1.7 quake Iceland: 0.7 Km S of Vatnafjöll Nov 23, 2021 2:04 am (GMT +0) (2 km SE)1.2 quake Iceland: 2.1 Km SW of Vatnafjöll Nov 23, 2021 12:57 pm (GMT +0) (2 km SSW)1.1 quake Iceland: 2.8 Km SW of Vatnafjöll Nov 23, 2021 10:21 am (GMT +0) (2 km SSW)0.5 quake Iceland: 2.1 Km SW of Vatnafjöll Nov 23, 2021 12:57 pm (GMT +0) (2 km SSW)All earthquakes at Vatnafjöll
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