Volcano earthquake report for Monday, 12 October 2026

Quakes detected near: Agua (1 quake mag 1.3), Askja (4 quakes between mag 0.6-1.1), Augustine (1 quake mag 1.9), Balut (2 quakes between mag 1.6-1.8), Baru (2 quakes between mag 2.2-2.8), Barva (3 quakes between mag 1.5-2.3)
Buzzard Creek (1 quake mag 1.4), Campi Flegrei (Phlegrean Fields) (4 quakes between mag 0.2-1.3), Clear Lake (34 quakes between mag 0.2-1.7), Coso (2 quakes between mag 2.0-2.2), Cuernos de Negros (2 quakes between mag 3.0-3.1), Etna (2 quakes between mag 1.7-2.0), Eyafjallajökull (1 quake mag 1.1), Flores (1 quake mag 2.2), Irazu (1 quake mag 1.4), Kilauea (9 quakes between mag 0.8-2.0), Kolumbo (1 quake mag 1.6), Krísuvík (1 quake mag 1.2), Leonard Range (1 quake mag 1.4), Lipari (3 quakes between mag 1.4-1.8), Ljósufjöll (6 quakes between mag 0.3-1.4), Loki-Fögrufjöll volcano (1 quake mag 1.5), Mahagnao (1 quake mag 3.9), Maroa (1 quake mag 1.2), Maunaloa (1 quake mag 1.7), Ndete Napu (1 quake mag 3.2), Poas (1 quake mag 2.1), Prestahnukur (4 quakes between mag 1.2-2.3), Ragang (1 quake mag 1.9), Sarik-Gajah (2 quakes between mag 3.0-3.9), Turrialba (1 quake mag 2.0) (updated 06h50)\n\nNote: 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.\n
Volcanoes with recent earthquakes above magnitude 2 or more than 10 quakes are listed below:

Baru volcano (Panama): 2 earthquakes up to magnitude 2.8

2 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 6.00 and 5.00 km.
Earthquake details:
2.8 quake Provincia de Bocas del Toro, 19 km north of Boquete, Panama, Oct 11, 2026 11:35 pm (GMT -5) (19 km NNE)
2.2 quake 38 km northwest of David, Provincia de Chiriqui, Panama, Oct 11, 2026 03:21 am (Costa_Rica time) (18 km SW)
All earthquakes at Baru

Barva volcano (Costa Rica): 3 earthquakes up to magnitude 2.3

3 earthquakes occurred near (under) the volcano during 14 hours, the last being recorded quake 1 hour 29 minutes ago. Hypocenter depths ranged between 17.00 and 10.00 km.
Earthquake details:
2.3 quake Provincia de Heredia, 19 km north of San Jose, Provincia de San Jose, Costa Rica, Oct 11, 2026 09:28 am (GMT -6) (5 km SE)
2.1 quake Provincia de Heredia, 25 km north of San Jose, Provincia de San Jose, Costa Rica, Oct 11, 2026 09:40 am (Costa_Rica time) (4 km NE)
1.5 quake Provincia de Heredia, 17 km north of San Jose, Provincia de San Jose, Costa Rica, Oct 11, 2026 11:21 pm (Costa_Rica time) (8 km SE)
All earthquakes at Barva
Barva is a multi-peaked Costa Rican volcano near San José, also recorded as Barba and Las Tres Marías. Its only confirmed eruption dates to around 6050 BCE, while later historical reports are uncertain.

Clear Lake volcano (California): 34 earthquakes up to magnitude 1.7

Possible earthquake swarm: 34 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 12 minutes ago. Hypocenter depths ranged between 2.97 and 0.11 km.
Earthquake details: (only 5 largest)
1.7 quake Sonoma County, 14 mi southwest of Clearlake, Lake County, California, United States, Oct 11, 2026 07:06 am (GMT -7) (16 km SSW)
1.5 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Oct 11, 2026 07:14 am (GMT -7) (16 km SSW)
1.4 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, Oct 11, 2026 09:32 am (GMT -7) (15 km SSW)
1.2 quake Mendocino County, 30 mi north of Santa Rosa, Sonoma County, California, United States, Oct 11, 2026 10:55 pm (GMT -7) (14 km SSW)
1.2 quake Lake County, 26 mi north of Santa Rosa, Sonoma County, California, United States, Oct 11, 2026 04:19 pm (GMT -7) (17 km S)
All earthquakes at Clear Lake

Coso volcano (California): 2 earthquakes up to magnitude 2.2

2 earthquakes occurred near (under) the volcano at nearly the same time (19:27 UTC). Hypocenter depths ranged between 1.36 and 0.38 km.
Earthquake details:
2.2 quake Inyo County, 32 mi north of Ridgecrest, Kern County, California, United States, Oct 11, 2026 12:27 pm (GMT -7) (19 km ENE)
2.0 quake Inyo County, 32 mi north of Ridgecrest, Kern County, California, United States, Oct 11, 2026 12:27 pm (GMT -7) (19 km ENE)
All earthquakes at Coso
Coso is a 400 km² volcanic field of rhyolitic domes, basaltic cones and lava flows east of the Sierra Nevada Range. Its youngest dated eruption occurred about 39,000 ± 33,000 years ago, while active fumaroles and thermal springs mark an important geothermal area.

Cuernos de Negros volcano (Central Philippines): 2 earthquakes up to magnitude 3.1

2 earthquakes occurred near (under) the volcano during 3 hours, the last being recorded quake 9 hours ago. Hypocenter depths ranged between 13.00 and 10.00 km.
Earthquake details:
3.1 quake 18 km southwest of Dumaguete, Philippines, Oct 12, 2026 03:29 am (GMT +8) (2 km SW)
Reported quake or seismic-like event: 6.7 km south of Dumaguete, Philippines, Oct 12, 2026 06:00 am (GMT +8) (13 km E)
All earthquakes at Cuernos de Negros
Cuernos de Negros is a large stratovolcano complex overlooking Dumaguete in the southeastern part of Negros Island. No eruption is known from approximately the past 12,000 years, but fumaroles, sulfuric springs and hot springs occur within the complex.

Flores volcano (Guatemala): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 15 hours ago. The quake, which might be volcanic in origin, was located at a depth of 4.20 km depth at 14 km distance WNW from the volcano.
Earthquake details:
2.2 quake 23 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Oct 11, 2026 10:05 am (GMT -6) (14 km WNW)
All earthquakes at Flores
Flores, also known as Volcán Amayo, is a volcanic field about 10 km west of Jutiapa in southeastern Guatemala. Its last eruption is undated, and none are known from approximately the past 11,700 years.

Mahagnao volcano (Central Philippines): magnitude 3.9 earthquake

A magnitude 3.9 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 18 km distance SSE from the volcano.
Earthquake details:
3.9 quake 35 km northeast of Inopacan, Province of Leyte, Eastern Visayas, Philippines, Oct 12, 2026 09:23 am (GMT +8) (18 km SSE)
All earthquakes at Mahagnao
Mahagnao is a forested stratovolcano in central Leyte with a steep summit crater, flank lakes and several thermal areas. Its last known eruption is assigned to between about 2.6 million and 11,700 years ago, while a proposed 1895 eruption is not accepted.

Ndete Napu volcano (Flores): magnitude 3.2 earthquake

A magnitude 3.2 earthquake occurred at the volcano 11 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 14 km distance NNE from the volcano.
Earthquake details:
3.2 quake 32 km northeast of Ende, Kabupaten Ende, East Nusa Tenggara, Indonesia, Oct 12, 2026 03:42 am (GMT +8) (14 km NNE)
All earthquakes at Ndete Napu

Poas volcano (Costa Rica): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 8 hours ago. The quake, which might be volcanic in origin, was located at a depth of 8.00 km depth at 8 km distance SSE from the volcano.
Earthquake details:
2.1 quake Provincia de Alajuela, 26 km northwest of San Jose, Costa Rica, Oct 11, 2026 04:46 pm (GMT -6) (8 km SSE)
All earthquakes at Poas
Poás is an active Costa Rican volcano about 35 km northwest of San José. Its highly acidic Laguna Caliente is the source of frequent steam-driven explosions, including activity recorded during 2025 and 2026.

Prestahnukur volcano (Iceland): 4 earthquakes up to magnitude 2.3

4 earthquakes occurred near (under) the volcano during 3 hours, the last being recorded quake 17 hours ago. Hypocenter depths ranged between 16.70 and 3.60 km.
Earthquake details:
2.3 quake 12.4 km S of Eiríksjökull Oct 11, 2026 10:48 am (Universal Time) (10 km NE)
1.4 quake Iceland: 11.6 km S of Eiríksjökull Oct 11, 2026 01:34 pm (Reykjavik time) (12 km NE)
1.3 quake 11.9 km SSE of Eiríksjökull Oct 11, 2026 10:25 am (Universal Time) (13 km ENE)
1.2 quake 12.3 km S of Eiríksjökull Oct 11, 2026 11:31 am (Universal Time) (12 km ENE)
All earthquakes at Prestahnukur
Prestahnúkur is a roughly 90-km-long volcanic system beside the Langjökull icecap in Iceland. Its three known eruptions occurred during the past 10,000 years, the last at approximately 3350 BCE.

Sarik-Gajah volcano (Sumatra): 2 earthquakes up to magnitude 3.9

2 earthquakes occurred near (under) the volcano during 1 hour 43 minutes, the last being recorded quake 19 hours ago. Hypocenter depths ranged between 10.00 and 10.00 km.
Earthquake details:
3.9 quake Kabupaten Pasaman, 39 km northwest of Bukittinggi, Indonesia, Oct 11, 2026 05:17 pm (Jakarta time) (9 km S)
3.0 quake Kabupaten Pasaman, 38 km northwest of Bukittinggi, Indonesia, Oct 11, 2026 06:59 pm (GMT +7) (10 km S)
All earthquakes at Sarik-Gajah
Sarik-Gajah comprises three cones at two centers in Indonesia’s Sunda Volcanic Arc. Its last known eruption dates to between roughly 2.6 million and 11,700 years ago.
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/376944/Volcano-earthquake-report-2026-10-12.html