Volcano earthquake report for Sunday, 20 Oct 2024
World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 20 Oct 2024 Number in brackets indicate nr of quakes.

Quakes detected near: Akyarlar (1 quake mag 1.3), Askja (4 quakes between mag 0.5-1.2), Barva (1 quake mag 2.3), Brennisteinsfjöll (24 quakes between mag 0.2-2.6), Campi Flegrei (Phlegrean Fields) (2 quakes between mag 1.0-1.3), Clear Lake (12 quakes between mag 0.2-2.1)
Conchagüita (3 quakes between mag 2.1-2.5), Cosigüina (1 quake mag 2.3), Coso (2 quakes between mag 0.6-1.6), Etna (2 quakes between mag 1.5-1.7), Isla El Tigre (1 quake mag 2.5), Kilauea (1 quake mag 1.6), La Palma (1 quake mag 1.0), Ljósufjöll (2 quakes between mag 1.4-1.5), Loihi (1 quake mag 1.9), Maunaloa (3 quakes between mag 1.5-2.0), Papayo (2 quakes between mag 2.6-3.0), Piton de la Fournaise (1 quake mag 1.2), Platanar (1 quake mag 2.9), Prestahnukur (2 quakes between mag 1.3-1.7), Reventador (1 quake mag 1.5), Salton Buttes (3 quakes between mag 1.3-1.7), San Cristobal (1 quake mag 3.0), Svartsengi (2 quakes between mag 0.2-1.6), Terceira (1 quake mag 2.0), Tjörnes Fracture Zone (2 quakes between mag 1.2-2.0) (updated 22h50)

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:



Barva volcano (Costa Rica): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 23 hours ago. The quake, which might be volcanic in origin, was located at a depth of 11.0 km depth at 15 km distance E from the volcano.
Earthquake details:
2.3 quake 24 km northeast of San Jose, San Jose, Costa Rica, Oct 19, 2024 05:46 pm (Costa Rica time) (15 km E)
All earthquakes at Barva

Brennisteinsfjöll volcano (Reykjanes Peninsula, Iceland): 24 earthquakes up to magnitude 2.6

Possible earthquake swarm: 24 earthquakes occurred near (under) the volcano during 11 hours, the last being recorded quake 9 hours ago. Hypocenter depths ranged between 12.2 and 3.7 km.
Earthquake details: (only 5 largest)
2.6 quake 8.0 km NE of Krýsuvík Oct 20, 2024 11:24 am (Reykjavik time) (6 km WNW)
1.8 quake 7.9 km NE of Krýsuvík Oct 20, 2024 11:54 am (Reykjavik time) (6 km WNW)
0.9 quake 7.8 km NE of Krýsuvík Oct 20, 2024 11:22 am (Reykjavik time) (6 km WNW)
0.8 quake 7.8 km NE of Krýsuvík Oct 20, 2024 11:13 am (Reykjavik time) (6 km WNW)
0.7 quake Iceland: 7.7 km NE of Krýsuvík Oct 20, 2024 12:42 pm (Reykjavik time) (6 km WNW)
All earthquakes at Brennisteinsfjöll

Clear Lake volcano (California): 12 earthquakes up to magnitude 2.1

Possible earthquake swarm: 12 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 10.9 and 0.8 km.
Earthquake details: (only 5 largest)
2.1 quake 13 mi southwest of Clearlake, Lake County, California, United States, Oct 19, 2024 09:53 pm (Los Angeles time) (14 km SSW)
2.0 quake 9 km WNW of Cobb, CA, Oct 19, 2024 09:55 pm (Los Angeles time) (14 km SSW)
1.4 quake 7 km WNW of Cobb, CA, Oct 19, 2024 07:43 pm (Los Angeles time) (15 km S)
1.0 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, Oct 19, 2024 07:20 pm (Los Angeles time) (15 km SSW)
0.9 quake 8 km WNW of Cobb, CA, Oct 19, 2024 06:38 pm (Los Angeles time) (15 km SSW)
All earthquakes at Clear Lake

Conchagüita volcano (El Salvador): 3 earthquakes up to magnitude 2.5

3 earthquakes occurred near (under) the volcano during 5 hours, the last being recorded quake 10 hours ago. Hypocenter depths ranged between 6.0 and 3.0 km.
Earthquake details:
2.5 quake 8.9 km south of La Union, La Union, El Salvador, Oct 20, 2024 06:52 am (El Salvador time) (7 km WNW)
2.4 quake 5.5 km south of La Union, La Union, El Salvador, Oct 20, 2024 04:06 am (El Salvador time) (10 km NW)
2.1 quake 10.1 km south of La Union, La Union, El Salvador, Oct 20, 2024 01:22 am (El Salvador time) (6 km WNW)
All earthquakes at Conchagüita

Cosigüina volcano (Nicaragua): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 12 hours ago. The quake, which might be volcanic in origin, was located at a depth of 4.0 km depth at 17 km distance NNE from the volcano.
Earthquake details:
2.3 quake North Pacific Ocean, Nicaragua, Oct 20, 2024 05:03 am (Managua time) (17 km NNE)
All earthquakes at Cosigüina

Isla El Tigre volcano (Honduras): magnitude 2.5 earthquake

A magnitude 2.5 earthquake occurred at the volcano 15 hours ago. The quake, which might be volcanic in origin, was located at a depth of 1.0 km depth at 14 km distance SSE from the volcano.
Earthquake details:
2.5 quake North Pacific Ocean, 44 km west of Ciudad Choluteca, Choluteca, Honduras, Oct 20, 2024 02:13 am (Managua time) (14 km SSE)
All earthquakes at Isla El Tigre

Papayo volcano (Western & Central Mexico): 2 earthquakes up to magnitude 3.0

2 earthquakes occurred near (under) the volcano during 1 hour 24 minutes, the last being recorded quake 10 hours ago. Hypocenter depths ranged between 10.0 and 5.0 km.
Earthquake details:
Reported seismic-like event (likely no quake): 31 km southeast of Mexico, Mexico D.F., Mexico, Oct 20, 2024 07:08 am (GMT -6) (16 km W)
2.6 quake 3.3 km southeast of Ixtapaluca, Mexico, Oct 20, 2024 05:44 am (Mexico City time) (17 km W)
All earthquakes at Papayo

Platanar volcano (Costa Rica): magnitude 2.9 earthquake

A magnitude 2.9 earthquake occurred at the volcano 11 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.0 km depth at 10 km distance SSE from the volcano.
Earthquake details:
2.9 quake Alajuela, 43 km northwest of San Jose, San Jose, Costa Rica, Oct 20, 2024 05:21 am (Costa Rica time) (10 km SSE)
All earthquakes at Platanar

San Cristobal volcano (Nicaragua): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 7 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 17 km distance WSW from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 36 km northwest of Leon, Leon, Nicaragua, Oct 20, 2024 10:16 am (GMT -6) (17 km WSW)
All earthquakes at San Cristobal
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/255464/Volcano-earthquake-report-for-Sunday-20-Oct-2024.html