Volcano earthquake report for Monday, 31 Mar 2025
World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 31 Mar 2025 Number in brackets indicate nr of quakes.

Quakes detected near: Askja (1 quake mag 1.2), Aso (2 quakes between mag 0.9-2.0), Bardarbunga (3 quakes between mag 0.5-1.9), Campi Flegrei (Phlegrean Fields) (9 quakes between mag 0.1-1.0), Clear Lake (35 quakes between mag 0.4-1.9), Gareloi (3 quakes between mag 0.0-1.0)
Grímsvötn (2 quakes between mag 1.0-1.1), Hekla (2 quakes between mag 0.5-1.4), Hrómundartindur (1 quake mag 1.0), Ibusuku (6 quakes between mag 0.2-1.7), Irazu (2 quakes between mag 0.6-2.3), Kilauea (3 quakes between mag 0.7-1.8), Kolumbo (12 quakes between mag 1.2-2.1), Koruhüyüğü (1 quake mag 1.3), La Palma (1 quake mag 1.6), Lomas Blancas (1 quake mag 2.7), Machin (1 quake mag 3.0), Mayotte Island (2 quakes between mag 0.9-1.1), Moffett (1 quake mag 1.3), Mount Rainier (2 quakes between mag 0.0-1.3), Musuan (1 quake mag 2.8), Okataina (Tarawera) (2 quakes between mag 1.3-1.8), Sabancaya (1 quake mag 3.5), Santa Clara (1 quake mag 3.0), Santorini (2 quakes between mag 1.5-1.7), Soda Lakes (1 quake mag 3.0), Sotará (1 quake mag 2.1), Sousaki (1 quake mag 1.9), Svartsengi (2 quakes between mag 0.4-1.6), Taupo (1 quake mag 1.2), White Island (1 quake mag 1.8) (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:



Clear Lake volcano (California): 35 earthquakes up to magnitude 1.9

Possible earthquake swarm: 35 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 27 minutes ago. Hypocenter depths ranged between 3.54 and 0.68 km.
Earthquake details: (only 5 largest)
1.9 quake Sonoma County, 14 mi southwest of Clearlake, Lake County, California, United States, Mar 30, 2025 10:08 pm (GMT -7) (18 km SSW)
1.8 quake Sonoma County, 14 mi southwest of Clearlake, Lake County, California, United States, Mar 30, 2025 11:56 pm (GMT -7) (18 km SSW)
1.6 quake 29 mi north of Santa Rosa, Sonoma County, California, United States, Mar 31, 2025 08:14 am (GMT -7) (17 km SSW)
1.4 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Mar 31, 2025 01:59 am (GMT -7) (18 km SSW)
1.4 quake 25 mi north of Santa Rosa, Sonoma County, California, United States, Mar 31, 2025 04:08 pm (GMT -7) (19 km S)
All earthquakes at Clear Lake

Irazu volcano (Costa Rica): 2 earthquakes up to magnitude 2.3

2 earthquakes occurred near (under) the volcano during 3 hours, the last being recorded quake 17 hours ago. Hypocenter depths ranged between 9.00 and 3.00 km.
Earthquake details:
2.3 quake Cartago, 18 km southeast of San Jose, San Jose, Costa Rica, Mar 31, 2025 01:19 am (GMT -6) (19 km SW)
0.6 quake 2.5 km north of Cartago, Cartago, Costa Rica, Mar 30, 2025 10:28 pm (GMT -6) (13 km SW)
All earthquakes at Irazu

Kolumbo volcano (Greece): 12 earthquakes up to magnitude 2.1

Possible earthquake swarm: 12 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 15.12 and 0.29 km.
Earthquake details: (only 5 largest)
2.1 quake Aegean Sea, 24 km northeast of Santorini Island, Cyclades, South Aegean, Greece, Mar 31, 2025 11:58 pm (GMT +3) (15 km ENE)
1.8 quake Aegean Sea, 18 km northeast of Santorini Island, Cyclades, South Aegean, Greece, Mar 31, 2025 08:23 am (GMT +3) (7 km ENE)
1.7 quake Aegean Sea, 22 km northeast of Santorini Island, Cyclades, South Aegean, Greece, Mar 31, 2025 07:35 am (GMT +3) (10 km NE)
1.6 quake Aegean Sea, 28 km southeast of Heraklia Island, Cyclades, South Aegean, Greece, Mar 31, 2025 08:25 am (GMT +3) (18 km NE)
1.6 quake Aegean Sea, 20 km north of Anafi Island, Cyclades, South Aegean, Greece, Mar 31, 2025 07:24 am (GMT +3) (19 km E)
All earthquakes at Kolumbo

Lomas Blancas volcano (Central Chile and Argentina): magnitude 2.7 earthquake

A magnitude 2.7 earthquake occurred at the volcano 22 hours ago. The quake, which might be volcanic in origin, was located at a depth of 2.00 km depth at 12 km distance WSW from the volcano.
Earthquake details:
2.7 quake 70 km southeast of Linares, Linares, Maule, Chile, Mar 30, 2025 10:50 pm (GMT -3) (12 km WSW)
All earthquakes at Lomas Blancas

Machin volcano (Colombia): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 17 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 17 km distance ESE from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 1.3 km northwest of Ibague, Tolima, Colombia, Mar 31, 2025 02:19 am (GMT -5) (17 km ESE)
All earthquakes at Machin

Musuan volcano (Mindanao): magnitude 2.8 earthquake

A magnitude 2.8 earthquake occurred at the volcano 11 hours ago. The quake, which might be volcanic in origin, was located at a depth of 23.00 km depth at 17 km distance E from the volcano.
Earthquake details:
2.8 quake 15 km southeast of NIA Valencia, Philippines, Mar 31, 2025 08:48 pm (GMT +8) (17 km E)
All earthquakes at Musuan

Sabancaya volcano (Peru): magnitude 3.5 earthquake

A magnitude 3.5 earthquake occurred at the volcano 10 hours ago. The quake, which might be volcanic in origin, was located at a depth of 9.00 km depth at 12 km distance ENE from the volcano.
Earthquake details:
3.5 quake 66 km north of Cono Norte, Arequipa, Peru, Mar 31, 2025 09:03 am (GMT -5) (12 km ENE)
All earthquakes at Sabancaya

Santa Clara volcano (Utah): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 5 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 16 km distance SSE from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 0.8 mi north of St. George, Washington County, Utah, United States, Mar 31, 2025 12:54 pm (GMT -6) (16 km SSE)
All earthquakes at Santa Clara

Soda Lakes volcano (Nevada): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 17 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 12 km distance SE from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 1.1 mi southeast of Fallon, Churchill County, Nevada, United States, Mar 31, 2025 12:10 am (GMT -7) (12 km SE)
All earthquakes at Soda Lakes

Sotará volcano (Colombia): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 23 hours ago. The quake, which might be volcanic in origin, was located at a depth of 8.00 km depth at 10 km distance N from the volcano.
Earthquake details:
2.1 quake 27 km south of Popayán, Cauca, Colombia, Mar 30, 2025 08:05 pm (GMT -5) (10 km N)
All earthquakes at Sotará
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/268156/Volcano-earthquake-report-for-Monday-31-Mar-2025.html