Volcano earthquake report for Saturday, 17 Jul 2021

Quakes detected near: Askja (2 quakes between mag 0.1-1.0), Brennisteinsfjöll (3 quakes between mag 0.8-1.0), Clear Lake (17 quakes between mag 0.2-2.0), Coso (3 quakes between mag 0.8-1.4), Herdubreid (3 quakes between mag 0.3-1.0), Hiuchi (1 quake mag 2.5)
Katla (3 quakes between mag 0.6-1.5), Kverkfjöll (2 quakes between mag 0.6-1.1), Maunaloa (1 quake mag 1.9), Methana (1 quake mag 1.9), Nisyros (15 quakes between mag 1.6-3.7), Paricutín (Michoacán-Guanajuato) (2 quakes between mag 3.6-3.6), Sabancaya (1 quake mag 3.6), San Vicente (2 quakes between mag 2.3-2.5), Torfajökull (3 quakes between mag 0.8-1.3), Ubehebe Craters (1 quake mag 2.8), Washiba-Kumonotaira (1 quake mag 4.1) (updated 23h50)

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:

Clear Lake volcano (California): 17 earthquakes up to magnitude 2.0

Possible earthquake swarm: 17 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 2.3 and 0.1 km.
Earthquake details: (only 5 largest)
2.0 quake 3km NNW of The Geysers, CA, 17 July 2021 11:22 GMT (18 km S)
2.0 quake 3km NNW of The Geysers, CA, 17 July 2021 08:20 GMT (19 km S)
1.5 quake 8km NW of The Geysers, CA, 17 July 2021 01:54 GMT (16 km SSW)
1.4 quake 3km NNW of The Geysers, CA, 17 July 2021 11:23 GMT (18 km S)
1.1 quake 7km WNW of Cobb, CA, 17 July 2021 19:08 GMT (15 km S)
All earthquakes at Clear Lake

Hiuchi volcano (Honshu): magnitude 2.5 earthquake

A magnitude 2.5 earthquake occurred at the volcano 44 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 2.1 km depth at 10 km distance N from the volcano.
Earthquake details:
2.5 quake Gunma, 46 km east of Tōkamachi, Niigata, Japan, Jul 18, 2021 08:06:30.94 (10 km N)
All earthquakes at Hiuchi

Nisyros volcano (Greece): 15 earthquakes up to magnitude 3.7

Possible earthquake swarm: 15 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 18.8 and 5.0 km.
Earthquake details: (only 5 largest)
3.7 quake Aegean Sea, 103 km west of Rhodes, Dodecanese, South Aegean, Greece, 17 Jul 5:03 am (GMT +3) (18 km SSW)
3.5 quake Aegean Sea, 53 km south of Kos Town, Dodecanese, South Aegean, Greece, 17 July 2021 15:26 GMT (19 km SSE)
3.3 quake Aegean Sea, 55 km south of Kos Town, Dodecanese, South Aegean, Greece, 17 July 2021 01:02 GMT (16 km SSW)
3.1 quake Aegean Sea, 51 km south of Kos Town, Dodecanese, South Aegean, Greece, 17 July 2021 04:42 GMT (16 km SSW)
3.0 quake Aegean Sea, 53 km south of Kos Town, Dodecanese, South Aegean, Greece, 17 July 2021 00:18 GMT (17 km SSW)
All earthquakes at Nisyros

Paricutín (Michoacán-Guanajuato) volcano (Western & Central Mexico): 2 earthquakes up to magnitude 3.6

2 earthquakes occurred near (under) the volcano during 33 minutes, the last being recorded quake 14 hours ago. Hypocenter depths ranged between 8.0 and 8.0 km.
Earthquake details:
3.6 quake Nuevo Parangaricutiro, 20 km west of Uruapan, Michoacan, Mexico, 2021-07-17 04:25:38 (Hora de México) (9 km S)
3.6 quake Nuevo Parangaricutiro, 21 km west of Uruapan, Michoacan, Mexico, 2021-07-17 03:52:26 (Hora de México) (14 km S)
All earthquakes at Paricutín (Michoacán-Guanajuato)

Sabancaya volcano (Peru): magnitude 3.6 earthquake

A magnitude 3.6 earthquake occurred at the volcano 9 hours ago. The quake, which might be volcanic in origin, was located at a depth of 11.0 km depth at 14 km distance N from the volcano.
Earthquake details:
3.6 quake Provincia de Caylloma, 90 km northwest of Arequipa, Peru, 17 July 2021 14:47 GMT (14 km N)
All earthquakes at Sabancaya

San Vicente volcano (El Salvador): 2 earthquakes up to magnitude 2.5

2 earthquakes occurred near (under) the volcano during 11 minutes, the last being recorded quake 33 minutes ago. Hypocenter depths ranged between 8.0 and 4.0 km.
Earthquake details:
2.5 quake 15 km southeast of San Vincente, Departamento de San Vicente, El Salvador, 2021-07-17 17:17:05 (17 km E)
2.3 quake 13 km east of San Vincente, Departamento de San Vicente, El Salvador, 2021-07-17 17:05:43 (16 km E)
All earthquakes at San Vicente

Ubehebe Craters volcano (California): magnitude 2.8 earthquake

A magnitude 2.8 earthquake occurred at the volcano 3 hours ago. The quake, which might be volcanic in origin, was located at a depth of 16.0 km depth at 6 km distance WNW from the volcano.
Earthquake details:
2.8 quake 43 mi northeast of Lone Pine, Inyo County, California, USA, 17 July 2021 20:59 GMT (6 km WNW)
All earthquakes at Ubehebe Craters

Washiba-Kumonotaira volcano (Honshu): magnitude 4.1 earthquake

A magnitude 4.1 earthquake occurred at the volcano 15 hours ago. The quake, which might be volcanic in origin, was located at a depth of 2.8 km depth at 10 km distance S from the volcano.
Earthquake details:
4.1 quake Takayama Shi, Gifu, 33 km west of Matsumoto, Nagano, Japan, 17 Jul 2021 6:07 pm (GMT +9) (10 km S)
All earthquakes at Washiba-Kumonotaira