Volcano earthquake report for Friday, 4 September 2026

Quakes detected near: Askja (2 quakes between mag 0.1-1.6), Balut (12 quakes between mag 1.6-3.2), Brennisteinsfjöll (34 quakes between mag 0.0-2.9), Cabalian (1 quake mag 2.8), Chingo (1 quake mag 1.1), Clear Lake (24 quakes between mag 0.3-1.5)
Coso (3 quakes between mag 0.7-1.0), Flores (2 quakes between mag 1.1-1.8), Galeras (1 quake mag 2.2), Gran Canaria (2 quakes between mag 0.9-1.0), Hrómundartindur (3 quakes between mag 0.1-1.0), Jan Mayen (4 quakes between mag 1.2-3.0), Katla (2 quakes between mag 0.9-2.0), Kilauea (1 quake mag 2.3), Loihi (6 quakes between mag 1.7-2.1), Lutao (1 quake mag 4.3), Mageik (1 quake mag 1.2), Masaya (2 quakes between mag 2.3-2.5), Maunaloa (1 quake mag 1.9), Pacaya (2 quakes between mag 1.2-1.3), Patoc (1 quake mag 1.9), Pelée (6 quakes between mag 0.0-1.0), Prestahnukur (1 quake mag 1.2), Puracé (2 quakes between mag 1.9-2.3), Roundtop (1 quake mag 2.4), Taupo (1 quake mag 1.6), Tecuamburro (2 quakes between mag 1.0-1.2), Vatnafjöll (2 quakes between mag 0.0-1.7), Whale Island (1 quake mag 1.7), Wide Bay (3 quakes between mag 0.2-1.9) (updated 23h50)\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:

Balut volcano (Mindanao): 12 earthquakes up to magnitude 3.2

Possible earthquake swarm: 12 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 1 hour 17 minutes ago. Hypocenter depths ranged between 49.00 and 12.00 km.
Earthquake details: (only 5 largest)
3.2 quake Celebes Sea, 31 km southwest of Sarangani Island, Philippines, Sep 5, 2026 01:20 am (GMT +8) (19 km WSW)
3.0 quake Philippine Sea, 9.5 km west of Sarangani Island, Philippines, Sep 4, 2026 11:50 pm (GMT +8) (5 km NNE)
2.9 quake Philippine Sea, 12 km west of Sarangani Island, Philippines, Sep 4, 2026 05:54 pm (GMT +8) (8 km N)
2.4 quake Davao Occidental, Davao, Philippines, Sep 5, 2026 12:39 am (GMT +8) (18 km WSW)
2.3 quake Philippine Sea, 9.7 km west of Sarangani Island, Philippines, Sep 4, 2026 11:06 pm (GMT +8) (7 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.

Brennisteinsfjöll volcano (Reykjanes Peninsula, Iceland): 34 earthquakes up to magnitude 2.9

Possible earthquake swarm: 34 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 35 minutes ago. Hypocenter depths ranged between 21.00 and 0.00 km.
Earthquake details: (only 5 largest)
2.9 quake 21 km south of Reykjavik, Capital Region, Iceland, Sep 4, 2026 08:18 pm (Reykjavik time) (6 km NE)
1.5 quake 3.1 km NNW of Helgafell Sep 4, 2026 04:57 pm (Universal Time) (13 km NNW)
1.2 quake Iceland: 5.3 km WSW of Bláfjallaskáli Sep 4, 2026 09:24 pm (Reykjavik time) (6 km NE)
1.1 quake Iceland: 5.7 km SW of Bláfjallaskáli Sep 4, 2026 08:23 pm (Reykjavik time) (6 km NE)
1.0 quake 5.4 km SW of Bláfjallaskáli Sep 4, 2026 08:19 pm (Universal Time) (6 km ENE)
All earthquakes at Brennisteinsfjöll
Brennisteinsfjöll is an Icelandic volcanic system of crater rows and small shield volcanoes with an eruptive record extending back about 11,000 years. Its last known eruption occurred around 1341.

Cabalian volcano (Central Philippines): magnitude 2.8 earthquake

A magnitude 2.8 earthquake occurred at the volcano 18 hours ago. The quake, which might be volcanic in origin, was located at a depth of 31.00 km depth at 18 km distance S from the volcano.
Earthquake details:
2.8 quake Province of Southern Leyte, Eastern Visayas, 49 km northwest of Surigao, Philippines, Sep 4, 2026 01:54 pm (GMT +8) (18 km S)
All earthquakes at Cabalian
Cabalían is a 912 m-high stratovolcano on southeastern Leyte, distinguished by its lake-filled summit crater. Radiocarbon evidence records an eruption around 1820, with an uncertainty of about 30 years.

Clear Lake volcano (California): 24 earthquakes up to magnitude 1.5

Possible earthquake swarm: 24 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 23 minutes ago. Hypocenter depths ranged between 20.04 and 1.15 km.
Earthquake details: (only 5 largest)
1.5 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, Sep 3, 2026 06:29 pm (GMT -7) (16 km SSW)
1.4 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, Sep 4, 2026 04:24 pm (GMT -7) (16 km SSW)
1.2 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, Sep 4, 2026 02:51 pm (GMT -7) (15 km SSW)
1.1 quake Lake County, 27 mi north of Santa Rosa, Sonoma County, California, United States, Sep 3, 2026 05:18 pm (GMT -7) (16 km S)
1.0 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, Sep 4, 2026 01:02 pm (GMT -7) (16 km SSW)
All earthquakes at Clear Lake

Galeras volcano (Colombia): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 3 hours ago. The quake, which might be volcanic in origin, was located at a depth of 8.00 km depth at 9 km distance NE from the volcano.
Earthquake details:
2.2 quake 8.6 km northwest of Pasto, Departamento de Narino, Colombia, Sep 4, 2026 03:24 pm (GMT -5) (9 km NE)
All earthquakes at Galeras

Jan Mayen volcano (Atlantic Ocean): 4 earthquakes up to magnitude 3.0

4 earthquakes occurred near (under) the volcano during 9 hours, the last being recorded quake 14 hours ago. Hypocenter depths ranged between 25.00 and 0.00 km.
Earthquake details:
3.0 quake Greenland Sea, 22 km northeast of Jan Mayen Island, Svalbard and Jan Mayen, Sep 4, 2026 09:11 am (GMT +2) (7 km N)
1.5 quake Norwegian Sea, 26 km northeast of Jan Mayen Island, Svalbard and Jan Mayen, Sep 4, 2026 02:15 am (GMT +2) (11 km E)
1.2 quake 27 km northeast of Olonkinbyen, Jan Mayen, Svalbard and Jan Mayen, Sep 4, 2026 11:33 am (GMT +2) (4 km NW)
1.2 quake Greenland Sea, 17 km north of Jan Mayen Island, Svalbard and Jan Mayen, Sep 4, 2026 05:04 am (GMT +2) (10 km WNW)
All earthquakes at Jan Mayen
Jan Mayen is a remote Norwegian volcanic island dominated by the glacier-covered Beerenberg stratovolcano. Its documented eruptions include lava-producing activity in 1970 and 1985, when flows reached the sea.

Kilauea volcano (Hawai'i (Big Island)): 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 6.78 km depth at 13 km distance W from the volcano.
Earthquake details:
2.3 quake 30 mi southwest of Hilo, Hawaii County, Hawaii, United States, Sep 4, 2026 10:55 am (GMT -10) (13 km W)
All earthquakes at Kilauea

Loihi volcano (Hawai'i (Big Island)): 6 earthquakes up to magnitude 2.1

6 earthquakes occurred near (under) the volcano during 11 hours, the last being recorded quake 8 hours ago. Hypocenter depths ranged between 32.79 and 27.58 km.
Earthquake details: (only 5 largest)
2.1 quake North Pacific Ocean, 39 mi southeast of of Hawai‘i Island, Hawaii County, Hawaii, United States, Sep 3, 2026 09:05 pm (GMT -10) (19 km NNW)
2.0 quake North Pacific Ocean, 40 mi southeast of of Hawai‘i Island, Hawaii County, Hawaii, United States, Sep 4, 2026 04:07 am (GMT -10) (18 km NW)
1.9 quake North Pacific Ocean, 40 mi southeast of of Hawai‘i Island, Hawaii County, Hawaii, United States, Sep 4, 2026 05:38 am (GMT -10) (17 km NNW)
1.7 quake North Pacific Ocean, 39 mi southeast of of Hawai‘i Island, Hawaii County, Hawaii, United States, Sep 4, 2026 03:08 am (GMT -10) (18 km NNW)
1.7 quake North Pacific Ocean, 40 mi southeast of of Hawai‘i Island, Hawaii County, Hawaii, United States, Sep 4, 2026 12:32 am (GMT -10) (17 km NW)
All earthquakes at Loihi
Loihi, now named Kamaʻehuakanaloa, is a submarine shield volcano about 35 km southeast of Hawaiʻi. Its last confirmed eruption was in 1996, while later unrest has consisted of earthquake swarms without confirmed eruptions.

Lutao volcano (Taiwan): magnitude 4.3 earthquake

A magnitude 4.3 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 8 km distance E from the volcano.
Earthquake details:
4.3 quake Philippine Sea, 49 km east of Taitung, Taiwan, Sep 4, 2026 05:10 pm (GMT +8) (8 km E)
All earthquakes at Lutao
Lutao is a 268 m-high volcano in Taiwan's Luzon Volcanic Arc. Its last known eruption occurred between about 2 million and 11,700 years ago, with no eruptions identified during approximately the past 12,000 years.

Masaya volcano (Nicaragua): 2 earthquakes up to magnitude 2.5

2 earthquakes occurred near (under) the volcano during 2 minutes, the last being recorded quake 11 hours ago. Hypocenter depths ranged between 12.00 and 8.00 km.
Earthquake details:
2.5 quake 4.5 km southwest of Masaya, Departamento de Masaya, Nicaragua, Sep 4, 2026 06:29 am (GMT -6) (5 km SE)
2.3 quake 4.4 km southwest of Masaya, Departamento de Masaya, Nicaragua, Sep 4, 2026 06:26 am (GMT -6) (7 km SE)
All earthquakes at Masaya
Masaya is a frequently active Nicaraguan volcano about 20 km southeast of Managua. Known for its intermittent lava lake, it has also produced lava flows, explosive eruptions, ashfall and prolonged gas emissions.

Puracé volcano (Colombia): 2 earthquakes up to magnitude 2.3

2 earthquakes occurred near (under) the volcano during 16 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 11.00 and 11.00 km.
Earthquake details:
2.3 quake 33 km east of Popayán, Departamento del Cauca, Colombia, Sep 4, 2026 02:29 pm (GMT -5) (13 km NE)
1.9 quake 34 km east of Popayán, Departamento del Cauca, Colombia, Sep 3, 2026 10:35 pm (GMT -5) (17 km NNE)
All earthquakes at Puracé
Puracé is an active Colombian stratovolcano at the northwestern end of the Los Coconucos volcanic chain. Its history is dominated by explosive eruptions, with renewed gas-and-ash emissions recorded during 2022-2026.

Roundtop volcano (Aleutian Islands): magnitude 2.4 earthquake

A magnitude 2.4 earthquake occurred at the volcano 10 hours ago. The quake, which might be volcanic in origin, was located at a depth of 8.00 km depth at 8 km distance S from the volcano.
Earthquake details:
2.4 quake 56 mi southwest of King Cove, Aleutians East Borough, Alaska, United States, Sep 4, 2026 05:48 am (GMT -8) (8 km S)
All earthquakes at Roundtop
Roundtop is a flat-topped, glacier-covered stratovolcano on eastern Unimak Island. Its only confirmed eruptive period occurred around 7600 BCE, and no historical eruptions are known.
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/340950/Volcano-earthquake-report-2026-09-04.html