Volcano earthquake report for Sunday, 9 Aug 2026

Quakes detected near: Balut (8 quakes between mag 1.6-3.5), Banahaw (1 quake mag 3.0), Churchill (1 quake mag 1.1), Clear Lake (15 quakes between mag 0.2-1.8), Coso (4 quakes between mag 0.5-1.0), Eldey (10 quakes between mag 0.2-1.3)
Grímsvötn (1 quake mag 1.2), Hrómundartindur (7 quakes between mag 0.0-2.3), Iliamna (1 quake mag 1.9), Kilauea (1 quake mag 1.8), Ljósufjöll (5 quakes between mag 0.3-1.3), Maunaloa (2 quakes between mag 1.9-2.1), Mayotte Island (1 quake mag 1.3), Mount Baker (1 quake mag 1.3), Mt Fuji (1 quake mag 3.0), Muria (1 quake mag 2.5), Newberry (1 quake mag 1.5), Pacaya (1 quake mag 1.7), Prestahnukur (5 quakes between mag 0.8-1.9), Ragang (1 quake mag 1.4), Rinjani (1 quake mag 2.5), Salton Buttes (2 quakes between mag 1.3-1.5), Sorikmarapi (2 quakes between mag 2.9-3.2), Soufrière de Guadeloupe (3 quakes between mag 0.9-1.0), Sousaki (1 quake mag 1.4), Taupo (3 quakes between mag 1.5-2.1), Tsurumi (1 quake mag 3.1) (updated 13h50)

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:

Balut volcano (Mindanao): 8 earthquakes up to magnitude 3.5

8 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 38 minutes ago. Hypocenter depths ranged between 31.00 and 10.00 km.
Earthquake details: (only 5 largest)
3.5 quake Philippine Sea, 14 km south of Sarangani Island, Philippines, Aug 9, 2026 01:34 am (Manila time) (13 km SE)
2.5 quake Celebes Sea, 25 km southwest of Sarangani Island, Philippines, Aug 9, 2026 07:29 am (GMT +8) (13 km SW)
2.0 quake Celebes Sea, 19 km west of Sarangani Island, Philippines, Aug 9, 2026 08:02 pm (GMT +8) (8 km WNW)
2.0 quake Celebes Sea, 29 km west of Sarangani, Davao Occidental, Davao, Philippines, Aug 9, 2026 05:30 pm (GMT +8) (19 km WSW)
1.9 quake Province of Davao del Sur, 8.3 km west of Sarangani, Philippines, Aug 9, 2026 08:13 pm (GMT +8) (2 km SE)
All earthquakes at Balut

Banahaw volcano (Luzon Island): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 13 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 16 km distance SE from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 30 km southeast of San Pablo, Province of Laguna, Calabarzon, Philippines, Aug 9, 2026 09:06 am (GMT +8) (16 km SE)
All earthquakes at Banahaw

Clear Lake volcano (California): 15 earthquakes up to magnitude 1.8

Possible earthquake swarm: 15 earthquakes occurred near (under) the volcano during 17 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 3.55 and 1.84 km.
Earthquake details: (only 5 largest)
1.8 quake Sonoma County, 13 mi southwest of Clearlake, Lake County, California, United States, Aug 8, 2026 11:56 pm (GMT -7) (15 km SSW)
1.8 quake Sonoma County, 14 mi southwest of Clearlake, Lake County, California, United States, Aug 8, 2026 12:30 pm (GMT -7) (19 km S)
1.7 quake 13 mi southwest of Clearlake, Lake County, California, United States, Aug 9, 2026 02:25 am (GMT -7) (15 km S)
1.5 quake 26 mi north of Santa Rosa, Sonoma County, California, United States, Aug 8, 2026 02:26 pm (GMT -7) (17 km S)
1.1 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, Aug 8, 2026 07:50 pm (GMT -7) (16 km S)
All earthquakes at Clear Lake

Hrómundartindur volcano (Iceland): 7 earthquakes up to magnitude 2.3

7 earthquakes occurred near (under) the volcano during 1 hour 15 minutes, the last being recorded quake 8 hours ago. Hypocenter depths ranged between 7.20 and 3.50 km.
Earthquake details: (only 5 largest)
2.3 quake 2.2 km SSW of Hrómundartindi Aug 9, 2026 04:49 am (Universal Time) (2 km SSW)
1.0 quake 2.9 km S of Hrómundartindi Aug 9, 2026 06:04 am (Universal Time) (2 km S)
0.8 quake 3.1 km S of Hrómundartindi Aug 9, 2026 05:27 am (Universal Time) (3 km S)
0.5 quake 3.1 km S of Hrómundartindi Aug 9, 2026 05:00 am (Universal Time) (3 km S)
0.2 quake Iceland: 2.8 km S of Hrómundartindi Aug 9, 2026 05:24 am (Reykjavik time) (2 km S)
All earthquakes at Hrómundartindur

Maunaloa volcano (Hawai'i (Big Island)): 2 earthquakes up to magnitude 2.1

2 earthquakes occurred near (under) the volcano during 7 hours, the last being recorded quake 8 hours ago. Hypocenter depths ranged between 39.19 and 36.36 km.
Earthquake details:
2.1 quake 40 mi southwest of Hilo, Hawaii County, Hawaii, United States, Aug 8, 2026 07:56 pm (GMT -10) (6 km S)
1.9 quake 38 mi southwest of Hilo, Hawaii County, Hawaii, United States, Aug 8, 2026 01:24 pm (GMT -10) (7 km SE)
All earthquakes at Maunaloa

Mt Fuji volcano (Honshu): magnitude 3.0 earthquake

A magnitude 3.0 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 17 km distance N from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 23 km southeast of Kofu, Yamanashi, Japan, Aug 9, 2026 11:32 am (GMT +9) (17 km N)
All earthquakes at Mt Fuji

Muria volcano (Central Java): 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 17 km distance ENE from the volcano.
Earthquake details:
2.5 quake 4.1 km southwest of Tayu, Kabupaten Pati, Provinsi Jawa Tengah, Indonesia, Aug 9, 2026 04:34 am (GMT +7) (17 km ENE)
All earthquakes at Muria

Rinjani volcano (Lombok): magnitude 2.5 earthquake

A magnitude 2.5 earthquake occurred at the volcano 14 hours ago. The quake, which might be volcanic in origin, was located at a depth of 11.00 km depth at 18 km distance E from the volcano.
Earthquake details:
2.5 quake 31 km north of Selong, Kabupaten Lombok Timur, West Nusa Tenggara, Indonesia, Aug 9, 2026 08:18 am (GMT +8) (18 km E)
All earthquakes at Rinjani

Sorikmarapi volcano (Sumatra): 2 earthquakes up to magnitude 3.2

2 earthquakes occurred near (under) the volcano during 1 hour 59 minutes, the last being recorded quake 13 hours ago. Hypocenter depths ranged between 4.00 and 1.00 km.
Earthquake details:
3.2 quake Kabupaten Mandailing Natal, 98 km south of Padangsidempuan, Indonesia, Aug 9, 2026 05:23 am (Jakarta time) (15 km SSE)
2.9 quake Kabupaten Mandailing Natal, 99 km south of Padangsidempuan, Indonesia, Aug 9, 2026 07:22 am (GMT +7) (16 km SSE)
All earthquakes at Sorikmarapi

Taupo volcano (New Zealand): 3 earthquakes up to magnitude 2.1

3 earthquakes occurred near (under) the volcano during 10 hours, the last being recorded quake 9 hours ago. Hypocenter depths ranged between 5.10 and 4.30 km.
Earthquake details:
2.1 quake 1.5 km northeast of Taupo, Waikato, New Zealand, Aug 9, 2026 04:57 pm (GMT +12) (18 km NNE)
2.0 quake 1.7 km northeast of Taupo, Waikato, New Zealand, Aug 9, 2026 05:06 pm (GMT +12) (18 km NNE)
1.5 quake South Pacific Ocean, Waikato, 187 km west of Gisborne, Gisborne, New Zealand, Aug 9, 2026 06:37 am (GMT +12) (13 km WSW)
All earthquakes at Taupo

Tsurumi volcano (Kyushu): magnitude 3.1 earthquake

A magnitude 3.1 earthquake occurred at the volcano 21 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 7 km distance ENE from the volcano.
Earthquake details:
3.1 quake 2.3 km north of Beppu, Oita Prefecture, Japan, Aug 9, 2026 01:32 am (GMT +9) (7 km ENE)
All earthquakes at Tsurumi
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