Volcano earthquake report for Wednesday, 16 September 2026

Quakes detected near: Augustine (1 quake mag 1.7), Balut (4 quakes between mag 1.7-3.3), Bardarbunga (3 quakes between mag 0.0-1.9), Baru (1 quake mag 2.1), Brennisteinsfjöll (5 quakes between mag 0.1-1.0), Clear Lake (19 quakes between mag 0.3-1.6)
Coso (4 quakes between mag 1.0-2.1), Ebulobo (1 quake mag 2.5), Eldey (8 quakes between mag 0.7-2.5), Hekla (3 quakes between mag 0.6-1.2), Ibu (1 quake mag 3.3), Katmai (1 quake mag 1.2), Kilauea (2 quakes between mag 1.1-1.7), Ljósufjöll (3 quakes between mag 0.8-1.4), Loihi (1 quake mag 1.8), Mammoth Mountain (1 quake mag 1.2), Maroa (1 quake mag 1.6), Michoacán-Guanajuato (1 quake mag 4.0), Nevado del Huila (2 quakes between mag 1.4-2.3), Ngauruhoe (1 quake mag 1.6), Nii-jima (1 quake mag 2.5), Okataina (Tarawera) (1 quake mag 1.6), Omanago (1 quake mag 2.6), Paluweh (2 quakes between mag 2.1-3.4), Papandayan (10 quakes between mag 2.0-3.2), Pocdol Mountains (1 quake mag 1.7), Prestahnukur (28 quakes between mag 0.3-2.0), Pululahua (1 quake mag 1.9), Spurr (1 quake mag 1.3), Svartsengi (9 quakes between mag 0.2-1.8), Tarakan (1 quake mag 3.7), Tecuamburro (1 quake mag 1.6), Tenerife (5 quakes between mag 0.4-1.2), Tjörnes Fracture Zone (2 quakes between mag 1.0-1.2), Tobaru (1 quake mag 3.7), Torfajökull (4 quakes between mag 0.1-1.8), Tsurumi (1 quake mag 2.6) (updated 20h50)\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): 4 earthquakes up to magnitude 3.3

4 earthquakes occurred near (under) the volcano during 7 hours, the last being recorded quake 1 hour 57 minutes ago. Hypocenter depths ranged between 33.00 and 15.00 km.
Earthquake details:
3.3 quake Celebes Sea, 23 km west of Sarangani Island, Philippines, Sep 16, 2026 10:37 pm (GMT +8) (13 km WNW)
2.5 quake 12 km west of Sarangani, Davao Occidental, Davao, Philippines, Sep 17, 2026 02:53 am (GMT +8) (3 km NW)
1.8 quake Celebes Sea, 25 km southwest of Sarangani Island, Philippines, Sep 16, 2026 08:00 pm (GMT +8) (13 km SW)
1.7 quake Celebes Sea, 23 km southwest of Sarangani Island, Philippines, Sep 16, 2026 11:58 pm (GMT +8) (12 km SSW)
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.

Baru volcano (Panama): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 14 hours ago. The quake, which might be volcanic in origin, was located at a depth of 8.00 km depth at 18 km distance S from the volcano.
Earthquake details:
2.1 quake 29 km northwest of David, Provincia de Chiriqui, Panama, Sep 16, 2026 01:58 am (Costa_Rica time) (18 km S)
All earthquakes at Baru

Clear Lake volcano (California): 19 earthquakes up to magnitude 1.6

Possible earthquake swarm: 19 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 29 minutes ago. Hypocenter depths ranged between 18.00 and 0.55 km.
Earthquake details: (only 5 largest)
1.6 quake Sonoma County, 14 mi southwest of Clearlake, Lake County, California, United States, Sep 16, 2026 04:36 am (GMT -7) (16 km SSW)
1.1 quake Lake County, 28 mi north of Santa Rosa, Sonoma County, California, United States, Sep 16, 2026 08:20 pm (Universal Time) (15 km S)
1.1 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, Sep 16, 2026 06:45 pm (Universal Time) (15 km SSW)
1.1 quake 25 mi north of Santa Rosa, Sonoma County, California, United States, Sep 16, 2026 03:25 pm (Universal Time) (19 km S)
1.1 quake 26 mi north of Santa Rosa, Sonoma County, California, United States, Sep 16, 2026 12:06 pm (Universal Time) (17 km S)
All earthquakes at Clear Lake

Coso volcano (California): 4 earthquakes up to magnitude 2.1

4 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 5.30 and 1.00 km.
Earthquake details:
2.1 quake Inyo County, 28 mi north of Ridgecrest, Kern County, California, United States, Sep 15, 2026 08:58 pm (GMT -7) (2 km SSE)
1.5 quake Inyo County, 34 mi north of Ridgecrest, Kern County, California, United States, Sep 16, 2026 08:55 am (GMT -7) (9 km NW)
1.4 quake Inyo County, 29 mi north of Ridgecrest, Kern County, California, United States, Sep 15, 2026 09:54 pm (GMT -7) (4 km E)
1.0 quake Inyo County, 34 mi north of Ridgecrest, Kern County, California, United States, Sep 15, 2026 06:06 pm (GMT -7) (9 km NW)
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.

Ebulobo volcano (Flores): magnitude 2.5 earthquake

A magnitude 2.5 earthquake occurred at the volcano 16 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 10 km distance NNE from the volcano.
Earthquake details:
2.5 quake Kabupaten Nagekeo, 50 km west of Ende, Indonesia, Sep 16, 2026 12:55 pm (GMT +8) (10 km NNE)
All earthquakes at Ebulobo
Ebulobo is a 2,096 m stratovolcano in central Flores, Indonesia. Seven confirmed eruptive periods are recorded between 1830 and 1969, while an ash plume in 2017 was classified as an uncertain eruption.

Eldey volcano (Iceland): 8 earthquakes up to magnitude 2.5

8 earthquakes occurred near (under) the volcano during 5 hours, the last being recorded quake 18 hours ago. Hypocenter depths ranged between 45.80 and 0.00 km.
Earthquake details: (only 5 largest)
2.5 quake Iceland: 2.3 km ESE of Geirfugladrangur Sep 15, 2026 10:20 pm (Reykjavik time) (14 km WSW)
2.2 quake Iceland: 7.0 km SE of Geirfugladrangur Sep 16, 2026 03:02 am (Reykjavik time) (15 km SW)
1.6 quake 3.3 km WNW of Geirfugladrangur Sep 15, 2026 10:32 pm (Universal Time) (18 km WSW)
1.5 quake 9.5 km NNW of Geirfugladrangur Sep 15, 2026 10:44 pm (Universal Time) (19 km W)
1.2 quake Iceland: 7.5 km SE of Eldey Sep 15, 2026 10:32 pm (Reykjavik time) (9 km ESE)
All earthquakes at Eldey
Eldey is a mostly submarine volcanic system south of Iceland, with only an island and several rocky skerries above water. Five eruptions are confirmed from 1211 to 1926, and an additional event in 1884 is uncertain.

Ibu volcano (Halmahera): magnitude 3.3 earthquake

A magnitude 3.3 earthquake occurred at the volcano 18 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 13 km distance ENE from the volcano.
Earthquake details:
3.3 quake 37 km southwest of Tobelo, Kabupaten Halmahera Utara, North Maluku, Indonesia, Sep 16, 2026 12:08 pm (GMT +9) (13 km ENE)
All earthquakes at Ibu
Ibu is an active stratovolcano on Halmahera, Indonesia, with nested summit craters and a growing lava dome. An eruption that began in April 2008 was still producing daily eruptive events in August 2026.

Michoacán-Guanajuato volcano (Western & Central Mexico): magnitude 4.0 earthquake

A magnitude 4.0 earthquake occurred at the volcano 20 hours ago. The quake, which might be volcanic in origin, was located at a depth of 6.00 km depth at 19 km distance E from the volcano.
Earthquake details:
4.0 quake 4.5 km east of Patzcuaro, Estado de Michoacan de Ocampo, Mexico, Sep 15, 2026 06:41 pm (Mexico City time) (19 km E)
All earthquakes at Michoacán-Guanajuato
This extensive volcanic field in west-central Mexico has more than 1,400 vents. Its best-known cinder cones are Jorullo, active in 1759-74, and Parícutin, which arose in a former cornfield and erupted from 1943 to 1952.

Nevado del Huila volcano (Colombia): 2 earthquakes up to magnitude 2.3

2 earthquakes occurred near (under) the volcano during 5 hours, the last being recorded quake 13 hours ago. Hypocenter depths ranged between 10.00 and 7.00 km.
Earthquake details:
2.3 quake Departamento del Huila, 35 km north of Belalcazar, Colombia, Sep 16, 2026 02:56 am (GMT -5) (3 km NNE)
1.4 quake Departamento de Tolima, 38 km southeast of Miranda, Colombia, Sep 15, 2026 09:53 pm (GMT -5) (10 km NNE)
All earthquakes at Nevado del Huila
Nevado del Huila is the highest peak in the Colombian Andes. After centuries without a recorded eruption, it reawakened in 2007; a major eruption and lahars killed ten people in 2008.

Nii-jima volcano (Izu Islands): magnitude 2.5 earthquake

A magnitude 2.5 earthquake occurred at the volcano 18 hours ago. The quake, which might be volcanic in origin, was located at a depth of 45.70 km depth at 14 km distance S from the volcano.
Earthquake details:
2.5 quake Philippine Sea, 15 km northeast of Kozu Shima Island, Tokyo, Japan, Sep 16, 2026 12:13 pm (GMT +9) (14 km S)
All earthquakes at Nii-jima
Nii-jima is a rhyolitic volcanic island in Japan’s Izu Volcanic Arc. Its last known eruption, at Mukai-yama in 886 CE, combined explosive activity with lava-dome formation.

Omanago volcano (Honshu): magnitude 2.6 earthquake

A magnitude 2.6 earthquake occurred at the volcano 12 hours ago. The quake, which might be volcanic in origin, was located at a depth of 4.00 km depth at 4 km distance WNW from the volcano.
Earthquake details:
2.6 quake 18 km northwest of Nikko, Tochigi, Japan, Sep 16, 2026 05:21 pm (GMT +9) (4 km WNW)
All earthquakes at Omanago
Omanago is a closely spaced group of lava domes in Japan’s Nikko National Park. Its only known eruptive period formed a dome at Mitsudake around 3050 BCE, though the date is uncertain.

Paluweh volcano (Lesser Sunda Islands): 2 earthquakes up to magnitude 3.4

2 earthquakes occurred near (under) the volcano during 17 hours, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 48.00 and 11.00 km.
Earthquake details:
3.4 quake Flores Sea, 57 km north of Ende, Kabupaten Ende, East Nusa Tenggara, Indonesia, Sep 16, 2026 10:50 pm (GMT +8) (18 km W)
2.1 quake Flores Sea, 48 km north of Ende, Kabupaten Ende, East Nusa Tenggara, Indonesia, Sep 16, 2026 05:27 am (GMT +8) (18 km SW)
All earthquakes at Paluweh
Paluweh is an island-forming stratovolcano north of Flores, Indonesia. Its major eruptions include a destructive, tsunami-producing event in 1928 and deadly pyroclastic flows in 2013.

Papandayan volcano (West Java): 10 earthquakes up to magnitude 3.2

10 earthquakes occurred near (under) the volcano during 17 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 10.00 and 10.00 km.
Earthquake details: (only 5 largest)
3.2 quake 18 km southeast of Banjar, Kabupaten Bandung, Jawa Barat, Indonesia, Sep 16, 2026 11:12 am (GMT +7) (17 km WNW)
3.1 quake 22 km south of Banjaran, Kabupaten Bandung, Jawa Barat, Indonesia, Sep 16, 2026 08:11 am (GMT +7) (14 km NW)
2.9 quake 20 km east of Banjar, Kabupaten Bandung, Jawa Barat, Indonesia, Sep 16, 2026 09:35 am (GMT +7) (16 km WNW)
2.8 quake 20 km east of Banjar, Kabupaten Bandung, Jawa Barat, Indonesia, Sep 16, 2026 11:14 am (GMT +7) (16 km WNW)
2.7 quake 20 km east of Banjar, Kabupaten Bandung, Jawa Barat, Indonesia, Sep 16, 2026 05:14 pm (GMT +7) (16 km WNW)
All earthquakes at Papandayan
Papandayan is an active Indonesian stratovolcano whose 1772 eruption and flank collapse destroyed 40 villages and killed almost 3,000 people. Its crater complex remains marked by strong fumarolic activity.

Prestahnukur volcano (Iceland): 28 earthquakes up to magnitude 2.0

Possible earthquake swarm: 28 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 39 minutes ago. Hypocenter depths ranged between 16.30 and 0.00 km.
Earthquake details: (only 5 largest)
2.0 quake 11.5 km S of Eiríksjökull Sep 16, 2026 06:56 pm (Universal Time) (13 km NE)
1.9 quake Iceland: 13.1 km S of Eiríksjökull Sep 16, 2026 08:11 pm (Reykjavik time) (9 km NE)
1.9 quake Iceland: 11.6 km S of Eiríksjökull Sep 16, 2026 05:34 pm (Reykjavik time) (13 km NE)
1.5 quake 11.6 km SSE of Eiríksjökull Sep 16, 2026 02:21 pm (Universal Time) (13 km ENE)
1.5 quake 11.9 km S of Eiríksjökull Sep 16, 2026 08:16 am (Universal Time) (12 km NE)
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.

Tarakan volcano (Halmahera): magnitude 3.7 earthquake

A magnitude 3.7 earthquake occurred at the volcano 24 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 6 km distance SSW from the volcano.
Earthquake details:
3.7 quake 23 km west of Tobelo, Kabupaten Halmahera Utara, North Maluku, Indonesia, Sep 16, 2026 05:56 am (GMT +9) (6 km SSW)
All earthquakes at Tarakan
Tarakan comprises two basaltic cinder cones on northern Halmahera, Indonesia. Both have prominent summit craters, but their last eruption is undated and no historical activity is known.

Tobaru volcano (Halmahera): magnitude 3.7 earthquake

A magnitude 3.7 earthquake occurred at the volcano 19 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 10 km distance SSE from the volcano.
Earthquake details:
3.7 quake Kabupaten Halmahera Barat, 39 km southwest of Tobelo, Indonesia, Sep 16, 2026 11:03 am (GMT +9) (10 km SSE)
All earthquakes at Tobaru
Tobaru is a little-known stratovolcano in northern Halmahera, Indonesia, also associated with the names Loloda and Lolodai. No eruption during approximately the past 12,000 years has been identified, and its last eruption is undated.

Tsurumi volcano (Kyushu): magnitude 2.6 earthquake

A magnitude 2.6 earthquake occurred at the volcano 7 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.10 km depth at 11 km distance WSW from the volcano.
Earthquake details:
2.6 quake 17 km west of Beppu, Oita Prefecture, Japan, Sep 16, 2026 10:43 pm (GMT +9) (11 km WSW)
All earthquakes at Tsurumi
Tsurumi is part of the Yufu-Tsurumi lava-dome complex above Beppu on Kyushu. Its three known eruptive periods culminated in explosive summit activity in 867 CE.
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/355764/Volcano-earthquake-report-2026-09-16.html