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Posted By: Webmaster Volcano earthquake report for Tuesday, 21 Sep 2021 - Tue 21 Sep 2021 08:50:PM
Volcano earthquake report for Tuesday, 21 Sep 2021
World map showing volcanoes with shallow (less than 20 km) earthquakes within 20 km radius during the past 24 hours on 21 Sep 2021 Number in brackets indicate nr of quakes.

Quakes detected near: Askja (6 quakes between mag 0.5-1.3), Barva (1 quake mag 3.7), Clear Lake (20 quakes between mag 0.3-1.4), Eldey (1 quake mag 1.0), Etna (3 quakes between mag 1.6-3.0), Grímsvötn (2 quakes between mag 0.9-1.8)
Herdubreid (8 quakes between mag 0.6-1.1), Kaba (1 quake mag 2.7), Kilauea (4 quakes between mag 1.7-2.1), La Palma (19 quakes between mag 1.9-3.2), Long Valley (1 quake mag 1.5), Mammoth Mountain (1 quake mag 1.4), Mount Rainier (1 quake mag 1.0), Nisyros (9 quakes between mag 1.4-2.1), Nyiragongo (1 quake mag 3.8), Reykjanes (12 quakes between mag 0.1-1.4), Salton Buttes (2 quakes between mag 1.5-2.1), Washiba-Kumonotaira (1 quake mag 2.7), Öraefajökull (1 quake mag 1.2) (updated 20h50)

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:


Barva volcano (Costa Rica): magnitude 3.7 earthquake

A magnitude 3.7 earthquake occurred at the volcano 6 hours ago. The quake, which might be volcanic in origin, was located at a depth of 4.0 km depth at 19 km distance ENE from the volcano.
Earthquake details:
3.7 quake Pococi, Provincia de Limon, 31 km northeast of San Jose, San José, Costa Rica, Sep 21, 2021 8:40 am (GMT -6) (19 km ENE)All earthquakes at Barva

Clear Lake volcano (California): 20 earthquakes up to magnitude 1.4

Possible earthquake swarm: 20 earthquakes occurred near (under) the volcano during 24 hours, the last being recorded quake 15 minutes ago. Hypocenter depths ranged between 17.3 and 0.2 km.
Earthquake details: (only 5 largest)
1.4 quake 8km W of Cobb, CA, Sep 21, 2021 10:27 am (GMT -7) (16 km SSW)1.3 quake 5km NNW of Cobb, CA, Sep 21, 2021 10:27 am (GMT -7) (12 km S)1.2 quake 7km NW of The Geysers, CA, Sep 20, 2021 1:50 pm (GMT -7) (16 km S)1.2 quake 9km WNW of Cobb, CA, Sep 20, 2021 5:36 pm (GMT -7) (15 km SSW)0.9 quake 3km NNW of The Geysers, CA, Sep 21, 2021 5:29 am (GMT -7) (19 km S)All earthquakes at Clear Lake

Etna volcano (Italy): 3 earthquakes up to magnitude 3.0

3 earthquakes occurred near (under) the volcano during 2 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 10.0 and 0.4 km.
Earthquake details:
Reported seismic-like event (likely no quake): 30 km north of Catania, Sicily, Italy, Sep 21, 2021 3:59 pm (GMT +2) (0 km SW)1.6 quake 17 km northeast of Adrano, Catania, Sicily, Italy, Sep 21, 2021 6:21 pm (GMT +2) (0 km SSE)1.6 quake 17 km northeast of Adrano, Catania, Sicily, Italy, Sep 21, 2021 6:20 pm (GMT +2) (1 km SSE)All earthquakes at Etna

Kaba volcano (Sumatra): magnitude 2.7 earthquake

A magnitude 2.7 earthquake occurred at the volcano 23 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 11 km distance W from the volcano.
Earthquake details:
2.7 quake 8.5 km southwest of Curup, Bengkulu, Indonesia, Sep 21, 2021 4:39 am (GMT +7) (11 km W)All earthquakes at Kaba

Kilauea volcano (Hawai'i (Big Island)): 4 earthquakes up to magnitude 2.1

4 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 3.9 and 0.1 km.
Earthquake details:
2.1 quake 5 Km SW of Volcano, Hawaii, Sep 21, 2021 8:13 am (GMT -10) (2 km E)1.8 quake 16 Km W of Volcano, Hawaii, Sep 21, 2021 1:50 am (GMT -10) (11 km W)1.8 quake 12 Km SSE of Volcano, Hawaii, Sep 20, 2021 11:18 am (GMT -10) (13 km SE)1.7 quake 10 Km WSW of Volcano, Hawaii, Sep 20, 2021 1:34 pm (GMT -10) (5 km WNW)All earthquakes at Kilauea

La Palma volcano (Canary Islands): 19 earthquakes up to magnitude 3.2

Possible earthquake swarm: 19 earthquakes occurred near (under) the volcano during 17 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 12.0 and 0.0 km.
Earthquake details: (only 5 largest)
3.2 quake La Palma Island, 4 km southeast of Los Llanos de Aridane, Spain, Sep 21, 2021 6:06 am (GMT +1) (8 km NW)Reported seismic-like event (likely no quake): 7.4 km south of Santa Cruz de La Palma, Tenerife, Canary Islands, Spain, Sep 21, 2021 12:50 pm (GMT +1) (8 km ENE)Reported seismic-like event (likely no quake): 2.7 km west of Los Llanos de Aridane, Tenerife, Canary Islands, Spain, Sep 21, 2021 4:48 pm (GMT +1) (13 km NW)3.0 quake La Palma Island, 4.9 km south of Los Llanos de Aridane, Spain, Sep 21, 2021 9:08 am (GMT +1) (7 km NW)2.9 quake La Palma Island, 8.4 km southeast of Los Llanos de Aridane, Spain, Sep 20, 2021 11:53 pm (GMT +1) (4 km NW)All earthquakes at La Palma

Nisyros volcano (Greece): 9 earthquakes up to magnitude 2.1

9 earthquakes occurred near (under) the volcano during 16 hours, the last being recorded quake 8 hours ago. Hypocenter depths ranged between 18.0 and 3.2 km.
Earthquake details: (only 5 largest)
2.1 quake Aegean Sea, 47 km south of Kos, Dodecanese, South Aegean, Greece, Sep 21, 2021 10:39 am (GMT +3) (7 km SW)2.0 quake Aegean Sea, 95 km west of Rhodos, Dodecanese, South Aegean, Greece, Sep 21, 2021 3:51 pm (GMT +3) (18 km S)2.0 quake Aegean Sea, 44 km south of Kos, Dodecanese, South Aegean, Greece, Sep 21, 2021 10:22 am (GMT +3) (9 km SSE)2.0 quake Aegean Sea, 46 km south of Kos, Dodecanese, South Aegean, Greece, Sep 21, 2021 12:08 am (GMT +3) (12 km SSE)1.8 quake Aegean Sea, 49 km south of Kos, Dodecanese, South Aegean, Greece, Sep 21, 2021 4:24 am (GMT +3) (18 km SE)All earthquakes at Nisyros

Nyiragongo volcano (Democratic Republic of Congo (DRC)): magnitude 3.8 earthquake

A magnitude 3.8 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 19 km distance S from the volcano.
Earthquake details:
Reported quake or seismic-like event: 2.5 km northwest of Gisenyi, Western Province, Rwanda, Sep 21, 2021 12:11 pm (GMT +2) (19 km S)All earthquakes at Nyiragongo

Reykjanes volcano (Reykjanes Peninsula, Iceland): 12 earthquakes up to magnitude 1.4

Possible earthquake swarm: 12 earthquakes occurred near (under) the volcano during 16 hours, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 5.8 and 0.5 km.
Earthquake details: (only 5 largest)
1.4 quake Iceland: 6.8 Km NE of Reykjanestá Sep 21, 2021 9:51 am (GMT +0) (7 km SW)1.2 quake Iceland: 6.5 Km NNE of Reykjanestá Sep 21, 2021 3:24 am (GMT +0) (7 km SW)1.1 quake Iceland: 7.0 Km NNE of Reykjanestá Sep 21, 2021 9:50 am (GMT +0) (7 km SW)1.0 quake Iceland: 6.9 Km NE of Reykjanestá Sep 21, 2021 9:52 am (GMT +0) (7 km SW)1.0 quake Iceland: 6.8 Km NE of Reykjanestá Sep 21, 2021 9:51 am (GMT +0) (7 km SW)All earthquakes at Reykjanes

Salton Buttes volcano (California): 2 earthquakes up to magnitude 2.1

2 earthquakes occurred near (under) the volcano during 10 hours, the last being recorded quake 59 minutes ago. Hypocenter depths ranged between 9.9 and 9.3 km.
Earthquake details:
2.1 quake 7km N of Westmorland, CA, Sep 21, 2021 12:50 pm (GMT -7) (11 km S)1.5 quake 8km W of Calipatria, CA, Sep 21, 2021 2:22 am (GMT -7) (9 km SSE)All earthquakes at Salton Buttes

Washiba-Kumonotaira volcano (Honshu): magnitude 2.7 earthquake

A magnitude 2.7 earthquake occurred at the volcano 18 hours ago. The quake, which might be volcanic in origin, was located at a depth of 3.4 km depth at 7 km distance SSE from the volcano.
Earthquake details:
2.7 quake Takayama Shi, Gifu, 24 km west of Hotaka, Azumino-Shi, Nagano, Japan, Sep 21, 2021 11:43 am (GMT +9) (7 km SSE)All earthquakes at Washiba-Kumonotaira
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/141975/Volcano-earthquake-report-for-Tuesday-21-Sep-2021.html
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