Volcano earthquake report for Thursday, 3 Aug 2023
World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 3 Aug 2023 Number in brackets indicate nr of quakes.

Quakes detected near: Apastepeque (1 quake mag 2.8), Askja (8 quakes between mag 0.2-2.7), Augustine (1 quake mag 1.6), Campi Flegrei (Phlegrean Fields) (3 quakes between mag 0.3-1.0), Cerro Negro de Mayasquer (1 quake mag 1.7), Clear Lake (18 quakes between mag 0.3-1.3)
Colli Albani (1 quake mag 1.2), Cosigüina (1 quake mag 2.1), Coso (1 quake mag 1.2), Eldey (1 quake mag 1.0), Fourpeaked (3 quakes between mag 1.1-2.0), Hualalai (1 quake mag 1.6), Jan Mayen (2 quakes between mag 1.1-2.5), Katla (4 quakes between mag 0.7-1.3), Kilauea (4 quakes between mag 1.8-2.2), La Palma (1 quake mag 1.3), Morne Plat Pays (2 quakes between mag 2.0-2.5), Mount Baker (2 quakes between mag 1.2-1.4), Mount Rainier (1 quake mag 1.0), Pelée (1 quake mag 1.1), Reporoa (4 quakes between mag 1.4-2.9), Rinjani (1 quake mag 4.3), Ruapehu (1 quake mag 1.3), Salton Buttes (4 quakes between mag 1.5-2.5), Sand Mountain (1 quake mag 2.0), Spurr (5 quakes between mag 0.7-1.9), Tjörnes Fracture Zone (3 quakes between mag 0.1-1.1), Torfajökull (8 quakes between mag 0.1-1.1), Yellowstone (9 quakes between mag 0.5-1.8) (updated 10h50)

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:



Apastepeque volcano (El Salvador): magnitude 2.8 earthquake

A magnitude 2.8 earthquake occurred at the volcano 15 hours ago. The quake, which might be volcanic in origin, was located at a depth of 46.0 km depth at 8 km distance W from the volcano.
Earthquake details:
2.8 quake San Vicente, 10 km east of Cojutepeque, Departamento de Cuscatlan, El Salvador, Aug 2, 2023 1:21 pm (GMT -6) (8 km W)
All earthquakes at Apastepeque

Askja volcano (Iceland): 8 earthquakes up to magnitude 2.7

8 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 6.4 and 2.8 km.
Earthquake details: (only 5 largest)
2.7 quake Iceland: 4.5 Km W of Dreki Aug 3, 2023 1:19 am (GMT +0) (2 km ENE)
1.3 quake Iceland: 4.1 Km W of Dreki Aug 3, 2023 1:49 am (GMT +0) (3 km ENE)
1.0 quake Iceland: 4.3 Km W of Dreki Aug 3, 2023 1:23 am (GMT +0) (3 km ENE)
1.0 quake Iceland: 7.5 Km WSW of Dreki Aug 2, 2023 12:52 pm (GMT +0) (1 km SSW)
0.5 quake Iceland: 7.2 Km NW of Dreki Aug 3, 2023 4:34 am (GMT +0) (6 km NNE)
All earthquakes at Askja

Clear Lake volcano (California): 18 earthquakes up to magnitude 1.3

Possible earthquake swarm: 18 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 3.5 and 0.1 km.
Earthquake details: (only 5 largest)
1.3 quake 6 Km WNW of The Geysers, CA, Aug 2, 2023 11:48 am (GMT -7) (19 km SSW)
1.3 quake 6 Km WNW of The Geysers, CA, Aug 2, 2023 11:48 am (GMT -7) (19 km SSW)
1.2 quake 8 Km NW of The Geysers, CA, Aug 2, 2023 11:41 am (GMT -7) (16 km SSW)
1.1 quake 7 Km WNW of Cobb, CA, Aug 3, 2023 1:45 am (GMT -7) (15 km S)
1.1 quake 8 Km NW of The Geysers, CA, Aug 2, 2023 5:14 am (GMT -7) (16 km SSW)
All earthquakes at Clear Lake

Cosigüina volcano (Nicaragua): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 16 hours ago. The quake, which might be volcanic in origin, was located at a depth of 1.0 km depth at 17 km distance N from the volcano.
Earthquake details:
2.1 quake North Pacific Ocean, 74 km northwest of Chinandega, Nicaragua, Aug 2, 2023 12:20 pm (GMT -6) (17 km N)
All earthquakes at Cosigüina

Jan Mayen volcano (Atlantic Ocean): 2 earthquakes up to magnitude 2.5

2 earthquakes occurred near (under) the volcano during 6 hours, the last being recorded quake 17 hours ago. Hypocenter depths ranged between 19.8 and 16.8 km.
Earthquake details:
2.5 quake 28 km northeast of Olonkinbyen, Jan Mayen, Aug 2, 2023 1:45 pm (GMT +2) (4 km NNW)
1.1 quake Svalbard & Jan Mayen Aug 2, 2023 7:42 pm (GMT +2) (8 km NNW)
All earthquakes at Jan Mayen

Kilauea volcano (Hawai'i (Big Island)): 4 earthquakes up to magnitude 2.2

4 earthquakes occurred near (under) the volcano during 11 hours, the last being recorded quake 11 hours ago. Hypocenter depths ranged between 29.3 and 1.0 km.
Earthquake details:
2.2 quake 30 mi southwest of Hilo, Hawaii County, USA, Aug 2, 2023 2:55 am (GMT -10) (7 km SW)
2.1 quake 8.2 mi northeast of Pāhala, Hawaii County, USA, Aug 2, 2023 7:24 am (GMT -10) (17 km SW)
1.9 quake 17 mi east of Hawaii Island, Hawaii County, USA, Aug 2, 2023 3:54 am (GMT -10) (15 km WNW)
1.8 quake 7.1 mi southwest of Volcano Village, Hawaii County, USA, Aug 2, 2023 1:33 pm (GMT -10) (5 km SSW)
All earthquakes at Kilauea

Morne Plat Pays volcano (Caribbean): 2 earthquakes up to magnitude 2.5

2 earthquakes occurred near (under) the volcano during 26 minutes, the last being recorded quake 20 hours ago. Hypocenter depths ranged between 7.7 and 3.4 km.
Earthquake details:
2.5 quake Caribbean Sea, 17 km southeast of Roseau, Saint George, Dominica, Aug 2, 2023 11:17 am (GMT -4) (10 km SSE)
2.0 quake Saint Patrick, 9.6 km southeast of Roseau, Saint George, Dominica, Aug 2, 2023 10:51 am (GMT -4) (3 km E)
All earthquakes at Morne Plat Pays

Reporoa volcano (New Zealand): 4 earthquakes up to magnitude 2.9

4 earthquakes occurred near (under) the volcano during 9 hours, the last being recorded quake 7 hours ago. Hypocenter depths ranged between 4.8 and 1.9 km.
Earthquake details:
2.9 quake 20 km southeast of Rotorua, Bay of Plenty, New Zealand, Aug 3, 2023 6:58 am (GMT +12) (14 km NNE)
1.9 quake 21 km southeast of Rotorua, Bay of Plenty, New Zealand, Aug 3, 2023 3:58 pm (GMT +12) (14 km NNE)
1.5 quake New Zealand Aug 3, 2023 7:26 am (GMT +12) (14 km NNE)
1.4 quake New Zealand Aug 3, 2023 7:04 am (GMT +12) (15 km NNE)
All earthquakes at Reporoa

Rinjani volcano (Lombok): magnitude 4.3 earthquake

A magnitude 4.3 earthquake occurred at the volcano 3 hours ago. The quake, which might be volcanic in origin, was located at a depth of 9.0 km depth at 17 km distance N from the volcano.
Earthquake details:
4.3 quake 54 km northeast of Matalam, Lombok, West Nusa Tenggara, Indonesia, Aug 3, 2023 3:41 pm (GMT +8) (17 km N)
All earthquakes at Rinjani

Salton Buttes volcano (California): 4 earthquakes up to magnitude 2.5

4 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 8.6 and 2.9 km.
Earthquake details:
2.5 quake 15 mi north of Brawley, Imperial County, California, USA, Aug 2, 2023 10:36 pm (GMT -7) (5 km ESE)
2.2 quake 15 mi north of Brawley, Imperial County, California, USA, Aug 2, 2023 10:36 pm (GMT -7) (2 km SE)
1.8 quake 15 mi north of Brawley, Imperial County, California, USA, Aug 2, 2023 5:10 am (GMT -7) (4 km ESE)
1.5 quake 7 Km SW of Niland, CA, Aug 2, 2023 11:25 pm (GMT -7) (4 km E)
All earthquakes at Salton Buttes
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/217489/Volcano-earthquake-report-for-Thursday-3-Aug-2023.html