Volcano earthquake report for Thursday, 5 November 2026

Quakes detected near: Agua (1 quake mag 1.4), Alaska Peninsula Arc at 155.4°W (1 quake mag 2.3), Apaneca Range (1 quake mag 1.8), Ararat (1 quake mag 1.8), Balut (7 quakes between mag 1.9-4.4), Churchill (1 quake mag 1.6)
Clear Lake (19 quakes between mag 0.4-1.9), Cuilapa-Barbarena (2 quakes between mag 1.4-1.7), Etna (2 quakes between mag 1.1-1.9), Flores (24 quakes between mag 1.2-3.5), Hakone (1 quake mag 1.6), Hiuchi (2 quakes between mag 0.7-1.1), Ilopango (1 quake mag 3.2), Isanotski (1 quake mag 1.2), Iwaki (1 quake mag 1.1), Kanlaon (1 quake mag 2.0), Katmai (1 quake mag 1.1), Kupreanof (1 quake mag 2.3), Kurikoma (3 quakes between mag 0.6-1.3), La Palma (1 quake mag 1.4), Loihi (1 quake mag 1.7), Martin (5 quakes between mag 0.8-1.2), Maunaloa (3 quakes between mag 1.8-3.1), Nipesotsu-Maruyama (1 quake mag 1.1), Norikura (2 quakes between mag 0.4-2.1), Novarupta (1 quake mag 1.2), Numazawa (11 quakes between mag 0.2-1.4), Okataina (Tarawera) (2 quakes between mag 1.9-2.0), Orosí (2 quakes between mag 1.4-1.7), Osore-yama (1 quake mag 1.8), Pacaya (1 quake mag 2.2), Parker (1 quake mag 1.7), Pelée (2 quakes between mag 0.5-1.5), Pico (1 quake mag 2.4), Rotorua (1 quake mag 1.4), San Diego (1 quake mag 1.0), Santo Tomas (1 quake mag 2.0), Sousaki (1 quake mag 1.3), Tenorio (1 quake mag 2.3), Trident (2 quakes between mag 0.7-1.0) (updated 11h50)\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:

Alaska Peninsula Arc at 155.4°W volcano (Alaska Peninsula): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 3 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.40 km depth at 14 km distance SW from the volcano.
Earthquake details:
2.3 quake 116 mi west of Kodiak, Kodiak Island Borough, Alaska, United States, Nov 5, 2026 12:06 am (GMT -9) (14 km SW)
All earthquakes at Alaska Peninsula Arc at 155.4°W

Balut volcano (Mindanao): 7 earthquakes up to magnitude 4.4

7 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 40.00 and 10.00 km.
Earthquake details: (only 5 largest)
4.4 quake Philippine Sea, 21 km southwest of Sarangani Island, Philippines, Nov 5, 2026 02:20 pm (Manila time) (12 km S)
2.8 quake Philippine Sea, 8.4 km west of Sarangani Island, Philippines, Nov 5, 2026 01:38 pm (Manila time) (5 km NNE)
2.3 quake Philippine Sea, 16 km northwest of Sarangani Island, Philippines, Nov 4, 2026 11:34 pm (Manila time) (17 km N)
2.2 quake Celebes Sea, 19 km southwest of Sarangani Island, Philippines, Nov 5, 2026 03:10 am (Manila time) (7 km SW)
2.1 quake Philippine Sea, 7.5 km northwest of Sarangani Island, Philippines, Nov 5, 2026 02:38 am (Manila time) (10 km NNE)
All earthquakes at Balut
Balut is an 840 m island stratovolcano south of Mindanao whose last known eruption occurred between about 2 million and 11,700 years ago. Hot springs and thermally altered ground occur on its western and southwestern flanks.

Clear Lake volcano (California): 19 earthquakes up to magnitude 1.9

Possible earthquake swarm: 19 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 9.04 and 1.42 km.
Earthquake details: (only 5 largest)
1.9 quake Sonoma County, 16 mi southwest of Clearlake, Lake County, California, United States, Nov 4, 2026 11:49 pm (GMT -8) (17 km SSW)
1.4 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, Nov 4, 2026 10:39 pm (GMT -8) (15 km SSW)
1.3 quake 29 mi north of Santa Rosa, Sonoma County, California, United States, Nov 5, 2026 12:55 am (GMT -8) (17 km SSW)
1.3 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Nov 4, 2026 06:43 pm (GMT -8) (17 km SSW)
1.3 quake Lake County, 27 mi north of Santa Rosa, Sonoma County, California, United States, Nov 4, 2026 10:01 am (GMT -8) (16 km S)
All earthquakes at Clear Lake

Flores volcano (Guatemala): 24 earthquakes up to magnitude 3.5

Possible earthquake swarm: 24 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 10.00 and 0.80 km.
Earthquake details: (only 5 largest)
3.5 quake 24 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Nov 4, 2026 06:13 am (Guatemala time) (14 km WNW)
3.1 quake 24 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Nov 4, 2026 03:48 pm (Guatemala time) (14 km WNW)
2.9 quake 24 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Nov 4, 2026 10:33 pm (Guatemala time) (14 km WNW)
2.6 quake 22 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Nov 4, 2026 10:19 am (Guatemala time) (15 km WNW)
2.4 quake 21 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Nov 5, 2026 01:14 am (Guatemala time) (15 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.

Ilopango volcano (El Salvador): magnitude 3.2 earthquake

A magnitude 3.2 earthquake occurred at the volcano 16 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.00 km depth at 18 km distance NE from the volcano.
Earthquake details:
3.2 quake 9.5 km north of Cojutepeque, Departamento de Cuscatlan, El Salvador, Nov 4, 2026 01:56 pm (El Salvador time) (18 km NE)
All earthquakes at Ilopango

Kupreanof volcano (Alaska Peninsula): 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 35.90 km depth at 7 km distance SSE from the volcano.
Earthquake details:
2.3 quake Lake and Peninsula Borough, 51 mi northeast of Sand Point, Aleutians East Borough, Alaska, United States, Nov 4, 2026 03:24 am (GMT -9) (7 km SSE)
All earthquakes at Kupreanof
Kupreanof is a 1,895 m stratovolcano on Alaska’s Alaska Peninsula with vigorous fumarolic activity. A possible ash emission in 1987 remains uncertain, while earthquakes, gas emissions and ground uplift marked magmatic unrest in 2026.

Maunaloa volcano (Hawai'i (Big Island)): 3 earthquakes up to magnitude 3.1

3 earthquakes occurred near (under) the volcano during 11 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 4.93 and 2.10 km.
Earthquake details:
3.1 quake 42 mi southwest of Hilo, Hawaii County, Hawaii, United States, Nov 4, 2026 11:59 am (Honolulu time) (9 km S)
2.1 quake 11 mi north of Pāhala, Hawaii County, Hawaii, United States, Nov 4, 2026 10:34 pm (GMT -10) (17 km SE)
1.8 quake 16 mi east of Honaunau-Napoopoo, Hawaii County, Hawaii, United States, Nov 4, 2026 12:25 pm (GMT -10) (11 km SSW)
All earthquakes at Maunaloa
Maunaloa is a huge, frequently active shield volcano on Hawaiʻi’s Big Island. Its predominantly lava-producing eruptions include a well-documented episode in November–December 2022.

Norikura volcano (Honshu): 2 earthquakes up to magnitude 2.1

2 earthquakes occurred near (under) the volcano during 12 hours, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 10.60 and 9.00 km.
Earthquake details:
2.1 quake 12 km southeast of Takayama, Gifu, Japan, Nov 5, 2026 03:08 pm (GMT +9) (19 km WSW)
0.4 quake 9.4 km southeast of Takayama, Gifu, Japan, Nov 5, 2026 03:22 am (GMT +9) (19 km W)
All earthquakes at Norikura
Norikura is Japan’s third-highest volcano, reaching 3,026 m in the Northern Japan Alps. Three VEI 3 eruptions are recognized from approximately the past 10,000 years, the last around 50 BCE.

Numazawa volcano (Honshu): 11 earthquakes up to magnitude 1.4

Possible earthquake swarm: 11 earthquakes occurred near (under) the volcano during 14 hours, the last being recorded quake 9 hours ago. Hypocenter depths ranged between 8.50 and 4.00 km.
Earthquake details: (only 5 largest)
1.4 quake 46 km west of Aizu-Wakamatsu, Fukushima, Japan, Nov 5, 2026 11:39 am (GMT +9) (12 km W)
0.9 quake 45 km west of Aizu-Wakamatsu, Fukushima, Japan, Nov 5, 2026 12:02 pm (GMT +9) (11 km W)
0.8 quake 45 km west of Aizu-Wakamatsu, Fukushima, Japan, Nov 5, 2026 11:40 am (GMT +9) (11 km W)
0.7 quake 45 km west of Aizu-Wakamatsu, Fukushima, Japan, Nov 5, 2026 12:01 pm (GMT +9) (11 km W)
0.6 quake 46 km west of Aizu-Wakamatsu, Fukushima, Japan, Nov 5, 2026 12:00 pm (GMT +9) (12 km W)
All earthquakes at Numazawa
Numazawa is a Japanese shield volcano with a 1.5 × 2 km lake-filled caldera. Its only listed confirmed eruptive period was a major explosive and effusive event several thousand years ago.

Pacaya volcano (Guatemala): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 14 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 13 km distance SSE from the volcano.
Earthquake details:
2.2 quake 24 km south of Villa Canales, Departamento de Guatemala, Guatemala, Nov 4, 2026 03:57 pm (Guatemala time) (13 km SSE)
All earthquakes at Pacaya
Pacaya, about 30 km south of Guatemala City, has frequently produced Strombolian explosions, ash plumes and lava flows. Its last known eruption continued from 2015 to August 2021.

Pico volcano (Azores): magnitude 2.4 earthquake

A magnitude 2.4 earthquake occurred at the volcano 11 hours ago. The quake, which might be volcanic in origin, was located at a depth of 6.20 km depth at 1 km distance SSW from the volcano.
Earthquake details:
2.4 quake 14 km southeast of Madalena, Azores, Portugal, Nov 4, 2026 11:51 pm (GMT -1) (1 km SSW)
All earthquakes at Pico
Pico is a 2,351-m stratovolcano and the highest volcano in the Azores. Its three confirmed eruptions, between 1562 and 1720, produced explosions and lava flows that reached the coast.

Tenorio volcano (Costa Rica): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 5 hours ago. The quake, which might be volcanic in origin, was located at a depth of 14.00 km depth at 7 km distance ESE from the volcano.
Earthquake details:
2.3 quake Provincia de Alajuela, 28 km northeast of Canas, Costa Rica, Nov 5, 2026 12:24 am (GMT -6) (7 km ESE)
All earthquakes at Tenorio
Tenorio is a forested volcanic complex in Costa Rica with multiple cones, craters and lava domes. No eruption is documented; an account from 1816 is regarded as legend, and fumarolic activity occurs on the northeastern flank.
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