Volcano earthquake report for Sunday, 10 Sep 2023
World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 10 Sep 2023 Number in brackets indicate nr of quakes.

Quakes detected near: Apo (2 quakes between mag 1.6-2.4), Ararat (1 quake mag 2.7), Bardarbunga (2 quakes between mag 0.6-1.1), Brennisteinsfjöll (11 quakes between mag 0.2-1.6), Clear Lake (9 quakes between mag 0.2-1.7), Colli Albani (1 quake mag 1.9)
Coso (1 quake mag 1.4), Eldey (1 quake mag 1.9), Etna (5 quakes between mag 3.0-3.0), Fagradalsfjall (55 quakes between mag 0.1-1.1), Galeras (1 quake mag 3.0), Grímsvötn (1 quake mag 1.1), Guguan (1 quake mag 4.6), Helgrindur (1 quake mag 2.1), Hrómundartindur (5 quakes between mag 0.2-1.0), Katla (2 quakes between mag 0.3-1.4), Kilauea (37 quakes between mag 1.7-2.6), Koruhüyüğü (4 quakes between mag 1.4-3.0), Krísuvík (32 quakes between mag 0.1-2.5), Kurikoma (1 quake mag 2.5), Kverkfjöll (1 quake mag 1.0), La Palma (1 quake mag 1.2), Latukan (1 quake mag 1.6), Mahagnao (1 quake mag 2.3), Maunaloa (1 quake mag 2.2), Mayotte Island (1 quake mag 3.2), Momotombo (1 quake mag 2.7), Prestahnukur (2 quakes between mag 1.1-1.2), Sangay (Philippines) (1 quake mag 2.2), Santa Isabel (1 quake mag 1.6), Serdán-Oriental (1 quake mag 3.7), Terceira (2 quakes between mag 2.4-2.6), Tjörnes Fracture Zone (7 quakes between mag 0.5-1.1) (updated 14h50)

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:



Apo volcano (Mindanao): 2 earthquakes up to magnitude 2.4

2 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 23.0 and 5.0 km.
Earthquake details:
2.4 quake Davao, 24 km northeast of Kidapawan, Philippines, Sep 10, 2023 1:05 am (GMT +8) (16 km N)
1.6 quake Philippines: 026 Km East of Magpet (Cotabato) Sep 10, 2023 8:08 pm (GMT +8) (16 km NE)
All earthquakes at Apo
Apo volcano (2938 m) on Mindanao forms the highest peak of the Philippines. Its volcanic history is not well known, but although there are no historic eruptions it is considered to be active.

The volcano has an extensive hydrothermal field with ongoing geothermal exploration. Small shallow earthquakes related to this activity are common.

Ararat volcano (Turkey): magnitude 2.7 earthquake

A magnitude 2.7 earthquake occurred at the volcano 20 hours ago. The quake, which might be volcanic in origin, was located at a depth of 7.0 km depth at 10 km distance S from the volcano.
Earthquake details:
2.7 quake 20 km east of Bajaset, Ağrı, Turkey, Sep 9, 2023 9:54 pm (GMT +3) (10 km S)
All earthquakes at Ararat

Brennisteinsfjöll volcano (Reykjanes Peninsula, Iceland): 11 earthquakes up to magnitude 1.6

Possible earthquake swarm: 11 earthquakes occurred near (under) the volcano during 13 hours, the last being recorded quake 7 hours ago. Hypocenter depths ranged between 8.1 and 0.1 km.
Earthquake details: (only 5 largest)
1.6 quake Iceland: 5.2 Km SW of Litla_Kaffistofan Sep 10, 2023 2:01 am (GMT +0) (17 km NE)
1.5 quake Iceland: 5.4 Km SW of Litla_Kaffistofan Sep 10, 2023 1:59 am (GMT +0) (17 km NE)
0.8 quake Iceland: 5.3 Km SW of Litla_Kaffistofan Sep 10, 2023 6:54 am (GMT +0) (17 km NE)
0.6 quake Iceland: 3.9 Km SW of Litla_Kaffistofan Sep 10, 2023 5:30 am (GMT +0) (18 km NE)
0.4 quake Iceland: 8.5 Km NE of Helgafell Sep 10, 2023 2:03 am (GMT +0) (17 km NNE)
All earthquakes at Brennisteinsfjöll

Etna volcano (Italy): 5 earthquakes up to magnitude 3.0

5 earthquakes occurred near (under) the volcano during 17 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 10.0 and 10.0 km.
Earthquake details:
Reported seismic-like event (likely no quake): 17 km northeast of Adrano, Catania, Sicily, Italy, Sep 10, 2023 12:25 pm (GMT +2) (0 km SW)
Reported seismic-like event (likely no quake): 48 km southwest of Barcellona Pozzo di Gotto, Province of Messina, Sicily, Italy, Sep 10, 2023 10:01 am (GMT +2) (0 km SW)
Reported seismic-like event (likely no quake): 17 km northeast of Adrano, Catania, Sicily, Italy, Sep 10, 2023 3:28 am (GMT +2) (0 km SW)
Reported seismic-like event (likely no quake): 30 km north of Catania, Sicily, Italy, Sep 9, 2023 9:38 pm (GMT +2) (0 km SW)
Reported seismic-like event (likely no quake): 49 km southeast of Capo d'Orlando, Province of Messina, Sicily, Italy, Sep 9, 2023 7:33 pm (GMT +2) (0 km SW)
All earthquakes at Etna

Fagradalsfjall volcano (Reykjanes Peninsula, Iceland): 55 earthquakes up to magnitude 1.1

Possible earthquake swarm: 55 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 11.5 and 4.8 km.
Earthquake details: (only 5 largest)
1.1 quake Iceland: 5.3 Km W of Fagradalsfjall Sep 10, 2023 9:20 am (GMT +0) (5 km W)
1.1 quake Iceland: 5.1 Km W of Fagradalsfjall Sep 10, 2023 10:25 am (GMT +0) (5 km W)
1.1 quake Iceland: 5.2 Km W of Fagradalsfjall Sep 10, 2023 10:23 am (GMT +0) (5 km W)
0.9 quake Iceland: 5.1 Km W of Fagradalsfjall Sep 10, 2023 9:46 am (GMT +0) (5 km W)
0.9 quake Iceland: 5.3 Km W of Fagradalsfjall Sep 10, 2023 9:20 am (GMT +0) (6 km W)
All earthquakes at Fagradalsfjall

Galeras volcano (Colombia): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 12 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 11 km distance E from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 23 km southwest of Buesaco, Departamento de Nariño, Colombia, Sep 9, 2023 9:42 pm (GMT -5) (11 km E)
All earthquakes at Galeras

Guguan volcano (Mariana Islands and Guam): magnitude 4.6 earthquake

A magnitude 4.6 earthquake occurred at the volcano 14 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 17 km distance NNW from the volcano.
Earthquake details:
4.6 quake Philippine Sea, 248 km north of Saipan, Northern Mariana Islands, Sep 10, 2023 10:41 am (GMT +10) (17 km NNW)
All earthquakes at Guguan

Helgrindur volcano (Iceland): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 3 hours ago. The quake, which might be volcanic in origin, was located at a depth of 1.1 km depth at 19 km distance SSW from the volcano.
Earthquake details:
2.1 quake Iceland: 32.5 Km SE of Hellissandur Sep 10, 2023 11:58 am (GMT +0) (19 km SSW)
All earthquakes at Helgrindur

Kilauea volcano (Hawai'i (Big Island)): 37 earthquakes up to magnitude 2.6

Possible earthquake swarm: 37 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 45 minutes ago. Hypocenter depths ranged between 9.8 and 0.0 km.
Earthquake details: (only 5 largest)
2.6 quake 26 mi southwest of Hilo, Hawaii County, USA, Sep 9, 2023 4:51 am (GMT -10) (1 km S)
2.6 quake 25 mi southwest of Hilo, Hawaii County, USA, Sep 9, 2023 9:06 am (GMT -10) (3 km E)
2.6 quake 26 mi southwest of Hilo, Hawaii County, USA, Sep 9, 2023 4:51 am (GMT -10) (2 km ESE)
2.3 quake 26 mi southwest of Hilo, Hawaii County, USA, Sep 9, 2023 9:20 pm (GMT -10) (1 km S)
2.3 quake 25 mi southwest of Hilo, Hawaii County, USA, Sep 9, 2023 10:58 am (GMT -10) (2 km E)
All earthquakes at Kilauea

Koruhüyüğü volcano (Turkey): 4 earthquakes up to magnitude 3.0

4 earthquakes occurred near (under) the volcano during 7 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 12.5 and 6.2 km.
Earthquake details:
3.0 quake Hatay, 36 km southeast of Osmaniye, Turkey, Sep 10, 2023 3:36 pm (GMT +3) (11 km W)
2.0 quake Gaziantep, 24 km east of Dörtyol, Hatay, Turkey, Sep 10, 2023 1:09 pm (GMT +3) (15 km NW)
1.9 quake Gaziantep, 31 km southeast of Osmaniye, Turkey, Sep 10, 2023 11:39 am (GMT +3) (13 km NW)
1.4 quake Turkey: İslahiye (Gaziantep) Sep 10, 2023 9:05 am (GMT +3) (16 km N)
All earthquakes at Koruhüyüğü

Krísuvík volcano (Reykjanes Peninsula, Iceland): 32 earthquakes up to magnitude 2.5

Possible earthquake swarm: 32 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 6.2 and 1.8 km.
Earthquake details: (only 5 largest)
2.5 quake Iceland: 7.5 Km NNE of Krýsuvík Sep 10, 2023 8:36 am (GMT +0) (6 km ENE)
1.4 quake Iceland: 0.9 Km NNE of Keilir Sep 9, 2023 5:02 pm (GMT +0) (4 km WNW)
1.3 quake Iceland: 4.7 Km NNE of Krýsuvík Sep 9, 2023 3:23 pm (GMT +0) (3 km E)
1.0 quake Iceland: 3.3 Km NNE of Krýsuvík Sep 9, 2023 5:09 pm (GMT +0) (3 km ESE)
1.0 quake Iceland: 3.4 Km NNE of Krýsuvík Sep 9, 2023 5:21 pm (GMT +0) (3 km ESE)
All earthquakes at Krísuvík

Kurikoma volcano (Honshu): 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 7.4 km depth at 8 km distance E from the volcano.
Earthquake details:
2.5 quake 22 km west of Ichinoseki, Iwate, Japan, Sep 10, 2023 9:30 am (GMT +9) (8 km E)
All earthquakes at Kurikoma

Mahagnao volcano (Central Philippines): 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 32.0 km depth at 12 km distance SSE from the volcano.
Earthquake details:
2.3 quake Leyte Island, 12 km northwest of Abuyog, Philippines, Sep 10, 2023 7:53 pm (GMT +8) (12 km SSE)
All earthquakes at Mahagnao

Maunaloa volcano (Hawai'i (Big Island)): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 11 hours ago. The quake, which might be volcanic in origin, was located at a depth of 8.6 km depth at 16 km distance SE from the volcano.
Earthquake details:
2.2 quake 12 mi north of Pāhala, Hawaii County, USA, Sep 9, 2023 6:08 pm (GMT -10) (16 km SE)
All earthquakes at Maunaloa

Mayotte Island volcano (Indian Ocean): magnitude 3.2 earthquake

A magnitude 3.2 earthquake occurred at the volcano 4 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 19 km distance SSW from the volcano.
Earthquake details:
Reported quake or seismic-like event: 17 km southwest of Mamoudzou, Mayotte, Sep 10, 2023 2:01 pm (GMT +3) (19 km SSW)
All earthquakes at Mayotte Island

Momotombo volcano (Nicaragua): magnitude 2.7 earthquake

A magnitude 2.7 earthquake occurred at the volcano 7 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.0 km depth at 8 km distance E from the volcano.
Earthquake details:
2.7 quake 20 km northeast of Nagarote, Departamento de Leon, Nicaragua, Sep 10, 2023 1:45 am (GMT -6) (8 km E)
All earthquakes at Momotombo

Sangay (Philippines) volcano (Luzon Island): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 18 hours ago. The quake, which might be volcanic in origin, was located at a depth of 34.0 km depth at 12 km distance E from the volcano.
Earthquake details:
2.2 quake Philippine Sea, 21 km northwest of Tabaco City, Philippines, Sep 10, 2023 4:56 am (GMT +8) (12 km E)
All earthquakes at Sangay (Philippines)

Serdán-Oriental volcano (Western & Central Mexico): magnitude 3.7 earthquake

A magnitude 3.7 earthquake occurred at the volcano 8 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 7 km distance SSE from the volcano.
Earthquake details:
3.7 quake 25 km north of Ciudad Serdan, Chalchicomula de Sesma, Puebla, Mexico, Sep 10, 2023 12:21 am (GMT -6) (7 km SSE)
All earthquakes at Serdán-Oriental

Terceira volcano (Azores): 2 earthquakes up to magnitude 2.6

2 earthquakes occurred near (under) the volcano during 2 hours, the last being recorded quake 7 hours ago. Hypocenter depths ranged between 1.7 and 0.0 km.
Earthquake details:
2.6 quake 15 km northwest of Angra do Heroismo, Azores, Portugal, Sep 10, 2023 7:50 am (GMT +0) (3 km WNW)
2.4 quake 17 km northwest of Angra do Heroismo, Azores, Portugal, Sep 10, 2023 5:44 am (GMT +0) (5 km N)
All earthquakes at Terceira
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