Volcano earthquake report for Sunday, 4 May 2025


Quakes detected near: Abu (27 quakes between mag 0.4-1.3), Aliso (2 quakes between mag 4.4-4.6), Askja (2 quakes between mag 0.8-1.1), Bardarbunga (14 quakes between mag 0.2-2.2), Brennisteinsfjöll (50 quakes between mag 0.0-1.7), Cabalian (4 quakes between mag 1.4-2.1)
Cagua (1 quake mag 1.5), Campi Flegrei (Phlegrean Fields) (7 quakes between mag 0.1-1.4), Clear Lake (26 quakes between mag 0.2-1.3), Coso (1 quake mag 1.3), Cuernos de Negros (3 quakes between mag 2.7-4.2), Eldey (7 quakes between mag 0.7-2.5), Hiuchi (4 quakes between mag 0.5-1.1), Hrómundartindur (35 quakes between mag 0.0-1.2), Isla El Tigre (1 quake mag 2.3), Klyuchevskoy (9 quakes between mag 0.8-2.0), Kolumbo (11 quakes between mag 1.1-2.3), Kuju (15 quakes between mag 0.3-2.5), Kurikoma (2 quakes between mag 0.4-1.1), La Palma (3 quakes between mag 1.3-1.7), Ljósufjöll (5 quakes between mag 0.2-1.3), Methana (1 quake mag 2.1), Nantai (4 quakes between mag 0.1-1.1), Oshima-Oshima (1 quake mag 1.6), Patoc (1 quake mag 1.2), Poas (2 quakes between mag 0.9-1.0), Puyuhuapi (1 quake mag 3.0), Salton Buttes (1 quake mag 1.2), Sandal (1 quake mag 1.1), Santorini (5 quakes between mag 0.0-1.4), Sousaki (2 quakes between mag 0.9-1.4), Taupo (1 quake mag 2.1), Terceira (1 quake mag 2.0), Tjörnes Fracture Zone (4 quakes between mag 0.5-1.0), To-shima (1 quake mag 1.5), Udina (1 quake mag 1.5), Vesuvius (31 quakes between mag 0.1-1.2), Öraefajökull (2 quakes between mag 0.3-1.0) (updated 00h50)
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:
Abu volcano (Honshu): 27 earthquakes up to magnitude 1.3
Possible earthquake swarm: 27 earthquakes occurred near (under) the volcano during 14 hours, the last being recorded quake 9 hours ago. Hypocenter depths ranged between 28.80 and 26.10 km.
Earthquake details: (only 5 largest)
1.3 quake 35 km north of Yamaguchi, Yamaguchi, Japan, May 3, 2025 04:59 pm (GMT +9) (3 km WSW)
0.9 quake 35 km north of Yamaguchi, Yamaguchi, Japan, May 3, 2025 01:07 pm (GMT +9) (4 km WSW)
0.8 quake 35 km north of Yamaguchi, Yamaguchi, Japan, May 3, 2025 11:16 am (GMT +9) (3 km WSW)
0.8 quake 36 km north of Yamaguchi, Yamaguchi, Japan, May 3, 2025 03:39 pm (GMT +9) (3 km WSW)
0.8 quake 36 km north of Yamaguchi, Yamaguchi, Japan, May 3, 2025 02:38 pm (GMT +9) (3 km W)
All earthquakes at Abu
Aliso volcano (Ecuador): 2 earthquakes up to magnitude 4.6
2 earthquakes occurred near (under) the volcano during 1 hour 60 minutes, the last being recorded quake 8 hours ago. Hypocenter depths ranged between 18.00 and 10.00 km.
Earthquake details:
4.6 quake 76 km southeast of Quito, Provincia de Pichincha, Ecuador, May 3, 2025 09:50 am (Guayaquil time) (11 km SSE)
4.4 quake Provincia de Napo, 75 km southeast of Quito, Provincia de Pichincha, Ecuador, May 3, 2025 11:50 am (Guayaquil time) (11 km S)
All earthquakes at Aliso
Bardarbunga volcano (Iceland): 14 earthquakes up to magnitude 2.2
Possible earthquake swarm: 14 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 9.10 and 0.10 km.
Earthquake details: (only 5 largest)
2.2 quake 4.1 km SSE of Bárðarbunga May 3, 2025 08:18 am (Universal Time) (3 km SE)
1.9 quake 2.9 km SSE of Bárðarbunga May 3, 2025 02:37 am (Universal Time) (2 km SE)
1.5 quake 5.1 km E of Bárðarbunga May 3, 2025 09:30 am (Universal Time) (6 km E)
1.3 quake 2.9 km SE of Bárðarbunga May 3, 2025 11:42 am (Universal Time) (3 km E)
1.1 quake 4.2 km SE of Bárðarbunga May 3, 2025 04:42 am (Universal Time) (4 km ESE)
All earthquakes at Bardarbunga
Brennisteinsfjöll volcano (Reykjanes Peninsula, Iceland): 50 earthquakes up to magnitude 1.7
Possible earthquake swarm: 50 earthquakes occurred near (under) the volcano during 16 hours, the last being recorded quake 1 hour 40 minutes ago. Hypocenter depths ranged between 10.20 and 2.30 km.
Earthquake details: (only 5 largest)
1.7 quake 4.0 km SW of Litla_Kaffistofan May 3, 2025 08:35 am (Universal Time) (18 km NE)
1.4 quake 4.1 km SW of Litla_Kaffistofan May 3, 2025 02:40 pm (Universal Time) (18 km NE)
1.2 quake 4.2 km SW of Litla_Kaffistofan May 3, 2025 02:38 pm (Universal Time) (18 km NE)
1.1 quake 3.8 km SW of Litla_Kaffistofan May 3, 2025 11:32 am (Universal Time) (18 km NE)
0.9 quake Iceland: 3.8 km SW of Litla_Kaffistofan May 3, 2025 09:57 am (Reykjavik time) (18 km NE)
All earthquakes at Brennisteinsfjöll
Cabalian volcano (Central Philippines): 4 earthquakes up to magnitude 2.1
4 earthquakes occurred near (under) the volcano during 3 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 34.00 and 32.00 km.
Earthquake details:
2.1 quake Philippine Sea, 47 km southeast of Abuyog, Philippines, May 4, 2025 03:19 am (GMT +8) (17 km NNE)
1.9 quake Philippine Sea, 38 km southeast of Abuyog, Philippines, May 4, 2025 04:25 am (GMT +8) (18 km N)
1.4 quake Philippine Sea, 44 km southeast of Abuyog, Philippines, May 4, 2025 01:59 am (GMT +8) (13 km N)
1.4 quake Philippine Sea, 19 km north of Panaon Island, Philippines, May 4, 2025 01:26 am (GMT +8) (8 km SSE)
All earthquakes at Cabalian
Clear Lake volcano (California): 26 earthquakes up to magnitude 1.3
Possible earthquake swarm: 26 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 3.28 and 0.01 km.
Earthquake details: (only 5 largest)
1.3 quake 26 mi north of Santa Rosa, Sonoma County, California, United States, May 3, 2025 03:50 am (GMT -7) (17 km S)
1.3 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, May 3, 2025 07:22 am (GMT -7) (16 km SSW)
1.3 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, May 3, 2025 02:03 am (GMT -7) (16 km SSW)
1.3 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, May 3, 2025 05:07 am (GMT -7) (16 km SSW)
1.3 quake 25 mi north of Santa Rosa, Sonoma County, California, United States, May 3, 2025 02:35 am (GMT -7) (19 km S)
All earthquakes at Clear Lake
Cuernos de Negros volcano (Central Philippines): 3 earthquakes up to magnitude 4.2
3 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 33.00 and 2.00 km.
Earthquake details:
4.2 quake 15 km southwest of Dumaguete, Philippines, May 3, 2025 12:55 pm (Manila time) (1 km E)
4.2 quake 17 km southwest of Dumaguete, Philippines, May 4, 2025 12:55 am (Manila time) (1 km S)
2.7 quake 25 km southwest of Dumaguete, Philippines, May 4, 2025 03:51 am (GMT +8) (11 km SSW)
All earthquakes at Cuernos de Negros
Eldey volcano (Iceland): 7 earthquakes up to magnitude 2.5
7 earthquakes occurred near (under) the volcano during 16 hours, the last being recorded quake 1 hour 2 minutes ago. Hypocenter depths ranged between 16.90 and 3.20 km.
Earthquake details: (only 5 largest)
2.5 quake Iceland: 2.9 km WNW of Geirfuglasker May 3, 2025 04:22 pm (Reykjavik time) (13 km WSW)
1.6 quake 3.8 km WNW of Reykjanestá May 3, 2025 08:15 am (Universal Time) (14 km NE)
1.4 quake Iceland: 3.3 km NNE of Geirfugladrangur May 3, 2025 03:59 pm (Reykjavik time) (14 km WSW)
1.2 quake Iceland: 8.1 km N of Eldey May 3, 2025 11:48 pm (Reykjavik time) (9 km N)
1.1 quake Iceland: 4.5 km WNW of Geirfuglasker May 3, 2025 03:56 pm (Reykjavik time) (14 km W)
All earthquakes at Eldey
Eldey is located at the beginning of the Reykjanes Ridge off the SW tip of Iceland. Its highest elevation is the top of Eldey Island, but most of the volcanic edifice is submerged.
Several eruptions occurred in historic times, last in 1926.
Hrómundartindur volcano (Iceland): 35 earthquakes up to magnitude 1.2
Possible earthquake swarm: 35 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 1 hour 37 minutes ago. Hypocenter depths ranged between 8.20 and 1.20 km.
Earthquake details: (only 5 largest)
1.2 quake 0.9 km SSE of Hellisheiðarvirkjun May 3, 2025 03:49 am (Universal Time) (10 km WSW)
1.1 quake Iceland: 4.8 km NE of Skeggi_á_Hengli May 3, 2025 04:43 pm (Reykjavik time) (6 km NNW)
0.8 quake 3.8 km SW of Litla_Kaffistofan May 3, 2025 08:28 am (Universal Time) (18 km WSW)
0.7 quake Iceland: 3.8 km SW of Litla_Kaffistofan May 3, 2025 11:12 pm (Reykjavik time) (17 km WSW)
0.7 quake Iceland: 3.5 km WNW of Þrengsli May 3, 2025 08:53 am (Reykjavik time) (16 km WSW)
All earthquakes at Hrómundartindur
Isla El Tigre volcano (Honduras): magnitude 2.3 earthquake
A magnitude 2.3 earthquake occurred at the volcano 17 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.00 km depth at 16 km distance S from the volcano.
Earthquake details:
2.3 quake 18 km Al Sur De Amapala, Honduras, May 3, 2025 02:16 am (GMT -6) (16 km S)
All earthquakes at Isla El Tigre
Kolumbo volcano (Greece): 11 earthquakes up to magnitude 2.3
Possible earthquake swarm: 11 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 18 minutes ago. Hypocenter depths ranged between 15.00 and 5.00 km.
Earthquake details: (only 5 largest)
2.3 quake Aegean Sea, 26 km northeast of Santorini Island, Cyclades, South Aegean, Greece, May 3, 2025 09:14 am (GMT +3) (15 km NE)
2.2 quake Aegean Sea, 25 km north of Anafi Island, Cyclades, South Aegean, Greece, May 3, 2025 06:31 pm (GMT +3) (19 km ENE)
2.1 quake Aegean Sea, 23 km northeast of Santorini Island, Cyclades, South Aegean, Greece, May 4, 2025 01:21 am (GMT +3) (12 km ENE)
2.0 quake Aegean Sea, 24 km northeast of Santorini Island, Cyclades, South Aegean, Greece, May 4, 2025 12:46 am (GMT +3) (12 km NE)
1.9 quake Aegean Sea, 21 km northeast of Santorini Island, Cyclades, South Aegean, Greece, May 3, 2025 01:39 pm (GMT +3) (10 km ENE)
All earthquakes at Kolumbo
Kuju volcano (Kyushu): 15 earthquakes up to magnitude 2.5
Possible earthquake swarm: 15 earthquakes occurred near (under) the volcano during 17 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 7.80 and 1.50 km.
Earthquake details: (only 5 largest)
2.5 quake 40 km west of Oita, Oita Prefecture, Japan, May 4, 2025 03:57 am (GMT +9) (6 km WNW)
2.3 quake 41 km west of Oita, Oita Prefecture, Japan, May 4, 2025 03:57 am (GMT +9) (6 km WNW)
2.2 quake 41 km west of Oita, Oita Prefecture, Japan, May 3, 2025 11:28 am (GMT +9) (6 km WNW)
2.2 quake 41 km west of Oita, Oita Prefecture, Japan, May 3, 2025 11:03 am (GMT +9) (6 km WNW)
1.9 quake 20 km south of Tsukawaki, Oita Prefecture, Japan, May 4, 2025 04:11 am (GMT +9) (5 km WNW)
All earthquakes at Kuju
Methana volcano (Greece): magnitude 2.1 earthquake
A magnitude 2.1 earthquake occurred at the volcano 22 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 12 km distance NNE from the volcano.
Earthquake details:
2.1 quake Aegean Sea, 10.7 km west of Aegina Island, Attica, Greece, May 3, 2025 06:18 am (GMT +3) (12 km NNE)
All earthquakes at Methana
Puyuhuapi volcano (Southern Chile and Argentina): magnitude 3.0 earthquake
A magnitude 3.0 earthquake occurred at the volcano 15 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 4 km distance SW from the volcano.
Earthquake details:
Reported quake or seismic-like event: 48 km north of Puerto Cisnes, Aisen, Region Aysen, Chile, May 3, 2025 06:13 am (GMT -4) (4 km SW)
All earthquakes at Puyuhuapi
Taupo volcano (New Zealand): magnitude 2.1 earthquake
A magnitude 2.1 earthquake occurred at the volcano 24 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.50 km depth at 19 km distance NNE from the volcano.
Earthquake details:
2.1 quake South Pacific Ocean, Waikato, 110 km southwest of Whakatane, New Zealand, May 3, 2025 12:54 pm (GMT +12) (19 km NNE)
All earthquakes at Taupo
Vesuvius volcano (Italy): 31 earthquakes up to magnitude 1.2
Possible earthquake swarm: 31 earthquakes occurred near (under) the volcano during 2 hours, the last being recorded quake 57 minutes ago. Hypocenter depths ranged between 1.87 and 0.03 km.
Earthquake details: (only 5 largest)
1.2 quake 5.9 km northeast of Torre del Greco, Napoli, Campania, Italy, May 4, 2025 01:19 am (GMT +2) (0 km NW)
0.6 quake 5.2 km south of Somma Vesuviana, Napoli, Campania, Italy, May 4, 2025 12:02 am (GMT +2) (1 km NE)
0.6 quake 14 km east of Naples, Napoli, Campania, Italy, May 3, 2025 11:59 pm (GMT +2) (1 km NNE)
0.5 quake 14 km east of Naples, Napoli, Campania, Italy, May 3, 2025 11:33 pm (GMT +2) (0 km SE)
0.5 quake 5.9 km northeast of Torre del Greco, Napoli, Campania, Italy, May 4, 2025 12:07 am (GMT +2) (0 km W)
All earthquakes at Vesuvius
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