World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 4 Apr 2026 Number in brackets indicate nr of quakes.Quakes detected near: Augustine (1 quake mag 1.1), Bardarbunga (14 quakes between mag 0.2-1.0), Barva (1 quake mag 1.1), Black Peak (1 quake mag 1.4), Brennisteinsfjöll (1 quake mag 1.3), Campi Flegrei (Phlegrean Fields) (7 quakes between mag 0.1-2.1)Clear Lake (29 quakes between mag 0.2-3.0), Concepción (1 quake mag 1.4), Coso (2 quakes between mag 0.6-1.2), El Chichón (3 quakes between mag 1.7-2.4), El Hierro (1 quake mag 1.5), Grímsnes (6 quakes between mag 0.0-1.0), Grímsvötn (6 quakes between mag 0.0-1.0), Hrómundartindur (7 quakes between mag 0.1-1.0), Indian Heaven (2 quakes between mag 1.0-1.2), Katla (3 quakes between mag 0.1-1.3), Kembar (1 quake mag 5.1), Kilauea (2 quakes between mag 1.6-1.8), Kolumbo (1 quake mag 2.0), Kupreanof (3 quakes between mag 1.0-1.2), Loihi (10 quakes between mag 1.7-2.1), Maunaloa (2 quakes between mag 1.9-2.1), Naolinco (1 quake mag 3.0), Okataina (Tarawera) (1 quake mag 1.9), Paco (2 quakes between mag 1.5-1.6), Piton de la Fournaise (4 quakes between mag 0.0-1.2), Poas (2 quakes between mag 2.1-3.2), Prestahnukur (4 quakes between mag 0.8-1.3), Ragang (3 quakes between mag 2.7-2.9), Reporoa (1 quake mag 1.3), Salton Buttes (3 quakes between mag 1.2-1.3), Stepovak Bay 4 (1 quake mag 1.7), Tenerife (4 quakes between mag 0.9-1.2), Tjörnes Fracture Zone (3 quakes between mag 0.5-1.0), Tolimán (1 quake mag 2.5), Öraefajökull (1 quake mag 1.8) (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:Bardarbunga volcano (Iceland): 14 earthquakes up to magnitude 1.0Possible earthquake swarm: 14 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 18.50 and 0.00 km.Earthquake details: (only 5 largest)1.0 quake Iceland: 4.9 km SE of Bárðarbunga Apr 3, 2026 07:04 pm (Reykjavik time) (4 km ESE)1.0 quake 6.0 km SSE of Bárðarbunga Apr 3, 2026 04:24 pm (Universal Time) (5 km SE)1.0 quake 5.7 km ESE of Bárðarbunga Apr 3, 2026 08:15 am (Universal Time) (5 km E)0.7 quake Iceland: 7.6 km E of Bárðarbunga Apr 3, 2026 08:40 pm (Reykjavik time) (8 km E)0.5 quake 5.6 km ESE of Bárðarbunga Apr 3, 2026 11:13 am (Universal Time) (5 km ESE)All earthquakes at BardarbungaCampi Flegrei (Phlegrean Fields) volcano (Italy): 7 earthquakes up to magnitude 2.17 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 3.06 and 1.00 km.Earthquake details: (only 5 largest)2.1 quake 12 km west of Naples, Napoli, Campania, Italy, Apr 3, 2026 09:59 am (GMT +2) (1 km NNW)1.0 quake Tyrrhenian Sea, 19 km northeast of Isola d'Ischia Island, Italy, Apr 3, 2026 11:14 pm (GMT +2) (4 km WSW)0.8 quake 4 km southeast of Pozzuoli, Napoli, Campania, Italy, Apr 3, 2026 11:22 pm (GMT +2) (0 km WNW)0.4 quake 1.8 km northwest of Bagnoli, Napoli, Campania, Italy, Apr 3, 2026 06:35 pm (GMT +2) (1 km ESE)0.1 quake 1 km east of Bagnoli, Napoli, Campania, Italy, Apr 3, 2026 07:28 pm (GMT +2) (4 km ESE)All earthquakes at Campi Flegrei (Phlegrean Fields)Clear Lake volcano (California): 29 earthquakes up to magnitude 3.0Possible earthquake swarm: 29 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 39 minutes ago. Hypocenter depths ranged between 10.00 and 0.62 km.Earthquake details: (only 5 largest)Reported seismic-like event (likely no quake): 1 mi northeast of San Francisco, San Francisco County, California, United States, Apr 3, 2026 12:40 am (GMT -7) (0 km SSE)2.2 quake 12 mi southwest of Clearlake, Lake County, California, United States, Apr 3, 2026 12:10 am (GMT -7) (17 km S)1.6 quake 12 mi southwest of Clearlake, Lake County, California, United States, Apr 3, 2026 04:19 am (GMT -7) (15 km S)1.6 quake 12 mi southwest of Clearlake, Lake County, California, United States, Apr 3, 2026 05:49 am (GMT -7) (15 km S)1.4 quake 25 mi north of Santa Rosa, Sonoma County, California, United States, Apr 2, 2026 07:49 pm (GMT -7) (19 km S)All earthquakes at Clear LakeEl Chichón volcano (Southern Mexico): 3 earthquakes up to magnitude 2.43 earthquakes occurred near (under) the volcano during 8 hours, the last being recorded quake 16 hours ago. Hypocenter depths ranged between 8.80 and 3.00 km.Earthquake details: 2.4 quake Estado de Chiapas, 37 km southwest of Teapa, Estado de Tabasco, Mexico, Apr 2, 2026 09:51 pm (GMT -6) (1 km WNW)2.4 quake 1.4 km east of Ostuacan, Estado de Chiapas, Mexico, Apr 3, 2026 03:17 am (GMT -6) (11 km WNW)1.7 quake 20 km southwest of Pichucalco, Estado de Chiapas, Mexico, Apr 2, 2026 07:02 pm (GMT -6) (1 km NW)All earthquakes at El ChichónKembar volcano (Sumatra): magnitude 5.1 earthquakeA magnitude 5.1 earthquake occurred at the volcano 8 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 6 km distance NNW from the volcano.Earthquake details: 5.1 quake Kabupaten Gayo Lues, Nanggroe Aceh Darussalam Province, 98 km west of Binjai, Indonesia, Apr 3, 2026 11:26 pm (Jakarta time) (6 km NNW)All earthquakes at KembarLoihi volcano (Hawai'i (Big Island)): 10 earthquakes up to magnitude 2.110 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 33.99 and 30.77 km.Earthquake details: (only 5 largest)2.1 quake North Pacific Ocean, 41 mi southeast of of Hawai‘i Island, Hawaii County, Hawaii, United States, Apr 3, 2026 11:31 am (GMT -10) (16 km NW)1.8 quake North Pacific Ocean, 45 mi south of of Hawai‘i Island, Hawaii County, Hawaii, United States, Apr 3, 2026 09:50 am (GMT -10) (17 km W)1.8 quake North Pacific Ocean, 39 mi southeast of of Hawai‘i Island, Hawaii County, Hawaii, United States, Apr 3, 2026 05:54 am (GMT -10) (18 km NNW)1.8 quake North Pacific Ocean, 41 mi southeast of of Hawai‘i Island, Hawaii County, Hawaii, United States, Apr 2, 2026 09:55 pm (GMT -10) (16 km NNW)1.8 quake North Pacific Ocean, 40 mi southeast of of Hawai‘i Island, Hawaii County, Hawaii, United States, Apr 2, 2026 04:52 pm (GMT -10) (17 km NW)All earthquakes at LoihiMaunaloa volcano (Hawai'i (Big Island)): 2 earthquakes up to magnitude 2.12 earthquakes occurred near (under) the volcano during 13 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 7.09 and 6.99 km.Earthquake details: 2.1 quake 17 mi west of Volcano, Hawaii County, Hawaii, United States, Apr 3, 2026 09:59 am (GMT -10) (16 km SE)1.9 quake 32 mi southwest of Hilo, Hawaii County, Hawaii, United States, Apr 2, 2026 09:00 pm (GMT -10) (15 km ESE)All earthquakes at MaunaloaNaolinco volcano (Western & Central Mexico): magnitude 3.0 earthquakeA magnitude 3.0 earthquake occurred at the volcano 9 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 14 km distance SW from the volcano.Earthquake details: Reported seismic-like event (likely no quake): 9.1 km northeast of Xalapa, Estado de Veracruz-Llave, Mexico, Apr 3, 2026 10:18 am (GMT -6) (14 km SW)All earthquakes at NaolincoPoas volcano (Costa Rica): 2 earthquakes up to magnitude 3.22 earthquakes occurred near (under) the volcano at nearly the same time (01:57 UTC). Hypocenter depths ranged between 5.00 and 2.00 km.Earthquake details: 3.2 quake Provincia de Alajuela, 28 km north of San Jose, Costa Rica, Apr 2, 2026 07:57 pm (GMT -6) (8 km ESE)2.1 quake Provincia de Alajuela, 27 km north of San Jose, Costa Rica, Apr 2, 2026 07:57 pm (Costa_Rica time) (8 km ESE)All earthquakes at PoasRagang volcano (Mindanao): 3 earthquakes up to magnitude 2.93 earthquakes occurred near (under) the volcano during 5 hours, the last being recorded quake 7 hours ago. Hypocenter depths ranged between 6.00 and 1.00 km.Earthquake details: 2.9 quake 3 km north of Wao, Philippines, Apr 3, 2026 09:34 pm (GMT +8) (19 km E)2.8 quake 7.5 km north of Wao, Philippines, Apr 4, 2026 12:43 am (GMT +8) (18 km ENE)2.7 quake 9.9 km north of Wao, Philippines, Apr 4, 2026 02:19 am (GMT +8) (18 km ENE)All earthquakes at RagangTolimán volcano (Guatemala): magnitude 2.5 earthquakeA magnitude 2.5 earthquake occurred at the volcano 2 hours ago. The quake, which might be volcanic in origin, was located at a depth of 4.00 km depth at 16 km distance ENE from the volcano.Earthquake details: 2.5 quake 5.1 km west of Patzun, Departamento de Chimaltenango, Guatemala, Apr 3, 2026 04:31 pm (GMT -6) (16 km ENE)All earthquakes at Tolimán