Volcano earthquake report for Wednesday, 8 Sep 2021

Quakes detected near: Agung (1 quake mag 3.2), Apo (1 quake mag 2.8), Askja (11 quakes between mag 0.2-1.9), Campi Flegrei (Phlegrean Fields) (1 quake mag 3.0), Clear Lake (24 quakes between mag 0.4-2.1), El Hierro (1 quake mag 3.2)
Eldey (1 quake mag 1.5), Etna (1 quake mag 3.0), Hijiori (1 quake mag 3.0), Kilauea (3 quakes between mag 1.9-2.2), Kolumbo (1 quake mag 2.1), Krísuvík (3 quakes between mag 0.1-2.1), Loihi (1 quake mag 3.6), Maunaloa (1 quake mag 1.9), Mount Rainier (4 quakes between mag 0.4-1.3), Nisyros (42 quakes between mag 1.3-4.5), Pelée (1 quake mag 1.0), Reykjanes (12 quakes between mag 0.2-1.2), Salton Buttes (1 quake mag 2.2), Tenerife (1 quake mag 1.6), Tjörnes Fracture Zone (2 quakes between mag 0.4-1.3), Vesuvius (4 quakes between mag 0.1-1.4) (updated 12h50)

Note: Earthquakes within 20 km from and at depths less than 20 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:

Agung volcano (Bali): magnitude 3.2 earthquake

A magnitude 3.2 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 N from the volcano.
Earthquake details:
3.2 quake 26 km northwest of Amlapura, Karangasem, Bali, Indonesia, Sep 8, 2021 8:24 am (GMT +8) (11 km N)All earthquakes at Agung

Apo volcano (Mindanao): magnitude 2.8 earthquake

A magnitude 2.8 earthquake occurred at the volcano 21 hours ago. The quake, which might be volcanic in origin, was located at a depth of 15.0 km depth at 18 km distance ENE from the volcano.
Earthquake details:
2.8 quake 22 km west of Davao City, Province of Davao del Sur, Philippines, Sep 8, 2021 12:10 am (GMT +8) (18 km ENE)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.

Askja volcano (Iceland): 11 earthquakes up to magnitude 1.9

Possible earthquake swarm: 11 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 5.1 and 1.3 km.
Earthquake details: (only 5 largest)
1.9 quake Iceland: 4.8 Km SW of Dreki Sep 7, 2021 8:31 pm (GMT +0) (4 km SE)1.7 quake Iceland: 3.7 Km WSW of Dreki Sep 7, 2021 7:02 pm (GMT +0) (4 km E)1.0 quake Iceland: 4.5 Km WSW of Dreki Sep 8, 2021 2:40 am (GMT +0) (3 km ESE)0.7 quake Iceland: 4.3 Km WSW of Dreki Sep 8, 2021 10:01 am (GMT +0) (3 km E)0.7 quake Iceland: 1.1 Km N of Dreki Sep 7, 2021 1:08 pm (GMT +0) (7 km ENE)All earthquakes at Askja

Campi Flegrei (Phlegrean Fields) volcano (Italy): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 15 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 11 km distance ENE from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 0.4 km south of Naples, Napoli, Campania, Italy, Sep 8, 2021 12:05 am (GMT +2) (11 km ENE)All earthquakes at Campi Flegrei (Phlegrean Fields)

Clear Lake volcano (California): 24 earthquakes up to magnitude 2.1

Possible earthquake swarm: 24 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 45 minutes ago. Hypocenter depths ranged between 3.4 and 0.2 km.
Earthquake details: (only 5 largest)
2.1 quake 7km NW of The Geysers, CA, Sep 8, 2021 5:04 am (GMT -7) (17 km SSW)1.8 quake 7km NW of The Geysers, CA, Sep 8, 2021 5:04 am (GMT -7) (17 km SSW)1.6 quake 7km W of Cobb, CA, Sep 8, 2021 3:21 am (GMT -7) (15 km SSW)1.2 quake 7km WNW of Cobb, CA, Sep 8, 2021 3:48 am (GMT -7) (15 km S)1.2 quake 8km WNW of Cobb, CA, Sep 8, 2021 3:25 am (GMT -7) (15 km SSW)All earthquakes at Clear Lake

El Hierro volcano (Canary Islands): 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 12.0 km depth at 2 km distance WNW from the volcano.
Earthquake details:
3.2 quake 12 km south of Frontera, Tenerife, Canary Islands, Spain, Sep 8, 2021 9:34 am (GMT +1) (2 km WNW)All earthquakes at El Hierro

Etna volcano (Italy): 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 10.0 km depth at 0 km distance SW from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 30 km north of Catania, Sicily, Italy, Sep 8, 2021 4:15 am (GMT +2) (0 km SW)All earthquakes at Etna

Hijiori volcano (Honshu): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 21 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 16 km distance E from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): Kitamurayama-gun, 3.8 km northwest of Obanazawa, Yamagata, Japan, Sep 8, 2021 1:09 am (GMT +9) (16 km E)All earthquakes at Hijiori

Kilauea volcano (Hawai'i (Big Island)): 3 earthquakes up to magnitude 2.2

3 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 1 hour 53 minutes ago. Hypocenter depths ranged between 5.6 and 0.4 km.
Earthquake details:
2.2 quake 12 Km SSE of Volcano, Hawaii, Sep 7, 2021 2:24 pm (GMT -10) (12 km SE)2.1 quake 13 Km S of Fern Forest, Hawaii, Sep 7, 2021 5:59 am (GMT -10) (19 km ESE)1.9 quake 5 Km SW of Volcano, Hawaii, Sep 8, 2021 12:57 am (GMT -10) (1 km NE)All earthquakes at Kilauea

Kolumbo volcano (Greece): magnitude 2.1 earthquake

A magnitude 2.1 earthquake occurred at the volcano 20 hours ago. The quake, which might be volcanic in origin, was located at a depth of 14.3 km depth at 15 km distance NE from the volcano.
Earthquake details:
2.1 quake Aegean Sea, 23 km northeast of Oia, Kykladene, South Aegean, Greece, Sep 7, 2021 7:37 pm (GMT +3) (15 km NE)All earthquakes at Kolumbo

Krísuvík volcano (Reykjanes Peninsula, Iceland): 3 earthquakes up to magnitude 2.1

3 earthquakes occurred near (under) the volcano during 6 hours, the last being recorded quake 13 hours ago. Hypocenter depths ranged between 5.0 and 2.5 km.
Earthquake details:
2.1 quake Iceland: 4.8 Km N of Krýsuvík Sep 7, 2021 11:12 pm (GMT +0) (2 km E)0.4 quake Iceland: 4.3 Km N of Krýsuvík Sep 7, 2021 11:29 pm (GMT +0) (2 km ESE)0.1 quake Iceland: 2.4 Km SSW of Keilir Sep 7, 2021 5:20 pm (GMT +0) (5 km W)All earthquakes at Krísuvík

Loihi volcano (Hawai'i (Big Island)): magnitude 3.6 earthquake

A magnitude 3.6 earthquake occurred at the volcano 14 hours ago. The quake, which might be volcanic in origin, was located at a depth of 6.7 km depth at 18 km distance S from the volcano.
Earthquake details:
3.6 quake North Pacific Ocean, 43 mi southeast of Hawaiian Ocean View, Hawaii County, USA, Sep 7, 2021 12:36 pm (GMT -10) (18 km S)All earthquakes at Loihi

Nisyros volcano (Greece): 42 earthquakes up to magnitude 4.5

Possible earthquake swarm: 42 earthquakes occurred near (under) the volcano during 16 hours, the last being recorded quake 39 minutes ago. Hypocenter depths ranged between 19.8 and 1.1 km.
Earthquake details: (only 5 largest)
4.5 quake Aegean Sea, 43 km south of Kos, Dodecanese, South Aegean, Greece, Sep 8, 2021 4:40 am (GMT +3) (9 km SSE)3.9 quake Aegean Sea, 44 km south of Kos, Dodecanese, South Aegean, Greece, Sep 8, 2021 12:55 am (GMT +3) (12 km SSE)3.5 quake Aegean Sea, 48 km south of Kos, Dodecanese, South Aegean, Greece, Sep 8, 2021 2:24 am (GMT +3) (13 km S)3.1 quake Aegean Sea, 48 km south of Kos, Dodecanese, South Aegean, Greece, Sep 8, 2021 2:27 am (GMT +3) (12 km S)2.5 quake Aegean Sea, 45 km south of Kos, Dodecanese, South Aegean, Greece, Sep 8, 2021 2:25 am (GMT +3) (8 km SW)All earthquakes at Nisyros

Reykjanes volcano (Reykjanes Peninsula, Iceland): 12 earthquakes up to magnitude 1.2

Possible earthquake swarm: 12 earthquakes occurred near (under) the volcano during 4 hours, the last being recorded quake 16 hours ago. Hypocenter depths ranged between 5.9 and 3.6 km.
Earthquake details: (only 5 largest)
1.2 quake Iceland: 7.1 Km NNE of Reykjanestá Sep 7, 2021 5:09 pm (GMT +0) (7 km SW)1.1 quake Iceland: 6.5 Km NNE of Reykjanestá Sep 7, 2021 9:19 pm (GMT +0) (7 km SW)0.9 quake Iceland: 7.4 Km NNE of Reykjanestá Sep 7, 2021 5:13 pm (GMT +0) (7 km SW)0.6 quake Iceland: 7.4 Km NNE of Reykjanestá Sep 7, 2021 5:24 pm (GMT +0) (7 km SW)0.6 quake Iceland: 7.2 Km NNE of Reykjanestá Sep 7, 2021 5:07 pm (GMT +0) (7 km SW)All earthquakes at Reykjanes

Salton Buttes volcano (California): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 4 hours ago. The quake, which might be volcanic in origin, was located at a depth of 2.3 km depth at 3 km distance SSW from the volcano.
Earthquake details:
2.2 quake 13km WSW of Niland, CA, Sep 8, 2021 1:37 am (GMT -7) (3 km SSW)All earthquakes at Salton Buttes
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/140793/Volcano-earthquake-report-for-Wednesday-8-Sep-2021.html