Volcano earthquake report for Friday, 15 Oct 2021
World map showing volcanoes with shallow (less than 20 km) earthquakes within 20 km radius during the past 24 hours on 15 Oct 2021 Number in brackets indicate nr of quakes.

Quakes detected near: Akyarlar (1 quake mag 2.2), Cabalian (1 quake mag 2.7), Clear Lake (14 quakes between mag 0.4-1.8), Coso (6 quakes between mag 0.6-1.9), Dutton (1 quake mag 1.1), Hualalai (1 quake mag 1.9)
Iriga (1 quake mag 3.9), Isarog (3 quakes between mag 2.4-4.2), Krísuvík (22 quakes between mag 0.1-1.6), La Palma (75 quakes between mag 2.0-3.6), Long Valley (5 quakes between mag 0.1-1.5), Milos (1 quake mag 3.0), Mono Lake (1 quake mag 1.6), Nisyros (4 quakes between mag 1.7-2.5), Okataina (Tarawera) (1 quake mag 2.2), Poas (2 quakes between mag 3.1-3.8), Prestahnukur (1 quake mag 3.0), Reykjanes (1 quake mag 3.0), San Pablo (1 quake mag 3.0), Taranaki (1 quake mag 1.9), Timber Mountain (3 quakes between mag 1.3-1.7) (updated 02h50)

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:


Akyarlar volcano (Turkey): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 15 hours ago. The quake, which might be volcanic in origin, was located at a depth of 2.0 km depth at 11 km distance ESE from the volcano.
Earthquake details:
2.2 quake Aegean Sea, 10.8 km south of Bodrum, Muğla, Turkey, Oct 14, 2021 2:56 pm (GMT +3) (11 km ESE)All earthquakes at Akyarlar

Cabalian volcano (Central Philippines): magnitude 2.7 earthquake

A magnitude 2.7 earthquake occurred at the volcano 13 hours ago. The quake, which might be volcanic in origin, was located at a depth of 1.0 km depth at 10 km distance W from the volcano.
Earthquake details:
2.7 quake 36 km northeast of Maasin, Southern Leyte, Eastern Visayas, Philippines, Oct 14, 2021 10:01 pm (GMT +8) (10 km W)All earthquakes at Cabalian

Clear Lake volcano (California): 14 earthquakes up to magnitude 1.8

Possible earthquake swarm: 14 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 4.5 and 1.1 km.
Earthquake details: (only 5 largest)
1.8 quake 5km W of Cobb, CA, Oct 14, 2021 9:23 am (GMT -7) (17 km S)1.5 quake 9km NE of Cloverdale, CA, Oct 14, 2021 5:22 am (GMT -7) (19 km SW)1.4 quake 6km NNW of The Geysers, CA, Oct 14, 2021 2:32 am (GMT -7) (16 km S)1.4 quake 2km NNE of The Geysers, CA, Oct 14, 2021 2:20 am (GMT -7) (19 km S)1.0 quake 5km NNW of The Geysers, CA, Oct 14, 2021 9:23 am (GMT -7) (17 km S)All earthquakes at Clear Lake

Iriga volcano (Luzon Island): magnitude 3.9 earthquake

A magnitude 3.9 earthquake occurred at the volcano 9 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.0 km depth at 13 km distance NW from the volcano.
Earthquake details:
3.9 quake 6.6 km northwest of Naga City, Camarines Sur, Bicol, Philippines, Oct 15, 2021 1:20 am (GMT +8) (13 km NW)All earthquakes at Iriga

Isarog volcano (Luzon Island): 3 earthquakes up to magnitude 4.2

3 earthquakes occurred near (under) the volcano during 6 hours, the last being recorded quake 7 hours ago. Hypocenter depths ranged between 17.0 and 7.0 km.
Earthquake details:
4.2 quake LUZON, PHILIPPINES, Oct 14, 2021 10:08 pm (GMT +8) (9 km W)Reported seismic-like event (likely no quake): 3.3 km northeast of Naga City, Camarines Sur, Bicol, Philippines, Oct 15, 2021 3:43 am (GMT +8) (19 km W)2.4 quake Philippine Sea, 19 km northeast of Naga City, Camarines Sur, Bicol, Philippines, Oct 15, 2021 3:22 am (GMT +8) (15 km NW)All earthquakes at Isarog

Krísuvík volcano (Reykjanes Peninsula, Iceland): 22 earthquakes up to magnitude 1.6

Possible earthquake swarm: 22 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 5.9 and 4.2 km.
Earthquake details: (only 5 largest)
1.6 quake Iceland: 2.1 Km SSW of Keilir Oct 14, 2021 2:07 pm (GMT +0) (4 km W)1.2 quake Iceland: 2.3 Km SSW of Keilir Oct 14, 2021 3:17 pm (GMT +0) (5 km WSW)1.0 quake Iceland: 2.0 Km SW of Keilir Oct 14, 2021 2:07 pm (GMT +0) (5 km W)0.9 quake Iceland: 2.4 Km SSW of Keilir Oct 14, 2021 3:02 pm (GMT +0) (5 km WSW)0.7 quake Iceland: 2.2 Km SSW of Keilir Oct 14, 2021 3:38 am (GMT +0) (4 km W)All earthquakes at Krísuvík

La Palma volcano (Canary Islands): 75 earthquakes up to magnitude 3.6

Possible earthquake swarm: 75 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 1 hour 45 minutes ago. Hypocenter depths ranged between 15.0 and 2.0 km.
Earthquake details: (only 5 largest)
3.6 quake La Palma Island, Canary Islands, Spain, Oct 14, 2021 5:32 am (GMT +1) (3 km S)3.5 quake La Palma Island, Canary Islands, Spain, Oct 14, 2021 8:40 am (GMT +1) (2 km SSE)3.4 quake La Palma Island, Canary Islands, Spain, Oct 14, 2021 11:09 am (GMT +1) (3 km SE)3.4 quake La Palma Island, Canary Islands, Spain, Oct 14, 2021 8:28 am (GMT +1) (2 km SSE)3.3 quake La Palma Island, Canary Islands, Spain, Oct 14, 2021 5:46 am (GMT +1) (2 km SE)All earthquakes at La Palma

Milos volcano (Greece): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 19 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.0 km depth at 9 km distance NNE from the volcano.
Earthquake details:
3.0 quake Kykladene, South Aegean, Greece, Oct 14, 2021 11:07 am (GMT +3) (9 km NNE)All earthquakes at Milos

Nisyros volcano (Greece): 4 earthquakes up to magnitude 2.5

4 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 8 hours ago. Hypocenter depths ranged between 11.9 and 8.3 km.
Earthquake details:
2.5 quake Aegean Sea, Greece, Oct 14, 2021 6:23 pm (GMT +3) (14 km S)2.1 quake Aegean Sea, Greece, Oct 14, 2021 10:07 am (GMT +3) (12 km SSW)1.9 quake Aegean Sea, Greece, Oct 14, 2021 9:41 pm (GMT +3) (18 km SE)1.7 quake Aegean Sea, Greece, Oct 14, 2021 6:14 am (GMT +3) (12 km SSE)All earthquakes at Nisyros

Okataina (Tarawera) volcano (New Zealand): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 6 hours ago. The quake, which might be volcanic in origin, was located at a depth of 4.1 km depth at 5 km distance WSW from the volcano.
Earthquake details:
2.2 quake Rotorua District, Bay of Plenty, New Zealand, Oct 15, 2021 9:24 am (GMT +13) (5 km WSW)All earthquakes at Okataina (Tarawera)

Poas volcano (Costa Rica): 2 earthquakes up to magnitude 3.8

2 earthquakes occurred near (under) the volcano at nearly the same time (10:45 UTC). Hypocenter depths ranged between 5.0 and 5.0 km.
Earthquake details:
3.8 quake Sarchi, Provincia de Alajuela, Costa Rica, Oct 14, 2021 4:45 am (GMT -6) (5 km NW)3.1 quake Sarchi, Provincia de Alajuela, Costa Rica, Oct 14, 2021 4:45 am (GMT -6) (8 km NW)All earthquakes at Poas

Prestahnukur volcano (Iceland): magnitude 3.0 earthquake

A magnitude 3.0 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 18 km distance NW from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 20 km east of Reykholt, Borgarbyggð, West, Iceland, Oct 14, 2021 10:50 pm (GMT +0) (18 km NW)All earthquakes at Prestahnukur

Reykjanes volcano (Reykjanes Peninsula, Iceland): 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 12 km distance NNW from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): Reykjanesbær, Southern Peninsula, 33 km southwest of Seltjarnarnes, Iceland, Oct 14, 2021 3:16 pm (GMT +0) (12 km NNW)All earthquakes at Reykjanes

San Pablo volcano (Luzon Island): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 22 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 18 km distance NW from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 1.5 km northeast of Calamba, Province of Laguna, Calabarzon, Philippines, Oct 14, 2021 12:33 pm (GMT +8) (18 km NW)All earthquakes at San Pablo
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