Volcano earthquake report for Friday, 16 Apr 2021

Quakes detected near: Buzzard Creek (1 quake mag 1.6), Clear Lake (15 quakes between mag 0.2-1.8), Coso (6 quakes between mag 0.5-1.0), Fagradalsfjall (30 quakes between mag 0.1-2.8), Hengill (8 quakes between mag 0.7-1.4), Hrómundartindur (2 quakes between mag 0.8-1.4)
Kaikohe-Bay of Islands (1 quake mag 3.0), Kolumbo (1 quake mag 1.0), Krafla (2 quakes between mag 0.8-1.1), Krísuvík (14 quakes between mag 0.4-1.6), Maunaloa (1 quake mag 1.0), Megata (1 quake mag 2.7), Methana (3 quakes between mag 1.2-1.5), Midagahara (2 quakes between mag 2.6-3.0), Mount Rainier (2 quakes between mag 0.7-1.3), Nisyros (11 quakes between mag 1.4-2.9), Paco (1 quake mag 2.4), Reykjanes (5 quakes between mag 0.4-1.3), Sousaki (1 quake mag 1.8), Sunset Crater (1 quake mag 3.0), Takahara (1 quake mag 2.6), Tenorio (1 quake mag 2.8), Washiba-Kumonotaira (1 quake mag 2.6) (updated 23h50)

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:

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

Possible earthquake swarm: 15 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 2.6 and 0.3 km.
Earthquake details: (only 5 largest)
1.8 quake 6km NNW of The Geysers, CA, USA, 16 April 2021 03:15 GMT (16 km S)
1.7 quake 4km NW of The Geysers, CA, USA, 16 April 2021 03:24 GMT (19 km S)
0.9 quake 9km WNW of The Geysers, CA, USA, 16 April 2021 10:37 GMT (18 km SSW)
0.9 quake 8km W of Cobb, CA, USA, 16 April 2021 14:05 GMT (15 km SSW)
0.9 quake 6km WNW of The Geysers, CA, USA, 16 April 2021 05:53 GMT (19 km SSW)
All earthquakes at Clear Lake

Fagradalsfjall volcano (Reykjanes Peninsula, Iceland): 30 earthquakes up to magnitude 2.8

Possible earthquake swarm: 30 earthquakes occurred near (under) the volcano during 9 hours, the last being recorded quake 15 hours ago. Hypocenter depths ranged between 6.5 and 0.5 km.
Earthquake details: (only 5 largest)
2.8 quake 3.3 Km WSW of Keilir, Iceland, 16 April 2021 06:00 GMT (4 km NE)
2.7 quake 3.1 Km NE of Fagradalsfjall, Iceland, 16 April 2021 05:58 GMT (4 km NE)
1.7 quake 2.8 Km ENE of Fagradalsfjall, Iceland, 16 April 2021 05:59 GMT (3 km NE)
1.7 quake 2.8 Km ENE of Fagradalsfjall, Iceland, 16 April 2021 05:56 GMT (3 km NE)
1.6 quake 2.8 Km ENE of Fagradalsfjall, Iceland, 16 April 2021 05:44 GMT (3 km NE)
All earthquakes at Fagradalsfjall

Kaikohe-Bay of Islands volcano (North Island): 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 19 km distance E from the volcano.
Earthquake details:
Unconfirmed quake reported: Near Kerikeri, Northland, New Zealand, 16 April 2021 13:02 GMT (19 km E)
All earthquakes at Kaikohe-Bay of Islands

Krísuvík volcano (Reykjanes Peninsula, Iceland): 14 earthquakes up to magnitude 1.6

Possible earthquake swarm: 14 earthquakes occurred near (under) the volcano during 14 hours, the last being recorded quake 10 hours ago. Hypocenter depths ranged between 5.9 and 0.5 km.
Earthquake details: (only 5 largest)
1.6 quake 2.2 Km SSW of Keilir, Iceland, 16 April 2021 14:10 GMT (5 km W)
1.5 quake 3.6 Km N of Krýsuvík, Iceland, 16 April 2021 01:16 GMT (2 km ESE)
1.4 quake 2.2 Km SSW of Keilir, Iceland, 16 April 2021 02:46 GMT (5 km W)
1.2 quake 2.6 Km SSW of Keilir, Iceland, 16 April 2021 00:16 GMT (5 km WSW)
1.0 quake 2.3 Km SSW of Keilir, Iceland, 16 April 2021 02:07 GMT (5 km W)
All earthquakes at Krísuvík

Megata volcano (Honshu): 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 10.2 km depth at 11 km distance S from the volcano.
Earthquake details:
2.7 quake Japan Sea, 19 km west of Tennō, Katagami, Akita, Japan, Apr 16, 2021 19:30:28.77 (11 km S)
All earthquakes at Megata

Midagahara volcano (Honshu): 2 earthquakes up to magnitude 3.0

2 earthquakes occurred near (under) the volcano during 8 minutes, the last being recorded quake 11 hours ago. Hypocenter depths ranged between 3.1 and 3.1 km.
Earthquake details:
3.0 quake Ōmachi-shi, 9.9 km west of Ōmachi, Omachi, Nagano, Japan, Apr 16, 2021 21:32:35.16 (16 km ESE)
2.6 quake Ōmachi-shi, 10.2 km west of Ōmachi, Omachi, Nagano, Japan, Apr 16, 2021 21:40:55.56 (16 km ESE)
All earthquakes at Midagahara

Nisyros volcano (Greece): 11 earthquakes up to magnitude 2.9

Possible earthquake swarm: 11 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 48 minutes ago. Hypocenter depths ranged between 17.8 and 5.0 km.
Earthquake details: (only 5 largest)
2.9 quake Aegean Sea, 49 km south of Kos Town, Dodecanese, South Aegean, Greece, 16 April 2021 23:01 GMT (12 km S)
2.9 quake Aegean Sea, 45 km south of Kos Town, Dodecanese, South Aegean, Greece, 16 April 2021 16:26 GMT (14 km SSE)
2.9 quake Aegean Sea, 55 km south of Kos Town, Dodecanese, South Aegean, Greece, 16 April 2021 00:22 GMT (15 km SSW)
2.8 quake Aegean Sea, 54 km south of Kos Town, Dodecanese, South Aegean, Greece, 16 April 2021 04:58 GMT (17 km SSW)
2.7 quake Aegean Sea, 48 km south of Kos Town, Dodecanese, South Aegean, Greece, 16 April 2021 21:26 GMT (11 km SSE)
All earthquakes at Nisyros

Paco volcano (Mindanao): magnitude 2.4 earthquake

A magnitude 2.4 earthquake occurred at the volcano 6 hours ago. The quake, which might be volcanic in origin, was located at a depth of 8.0 km depth at 19 km distance SE from the volcano.
Earthquake details:
2.4 quake 39 km southeast of Surigao City, Philippines, 17 April 2021 - 01:42 AM (PST) (19 km SE)
All earthquakes at Paco

Sunset Crater volcano (Arizona): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 17 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 4 km distance SSE from the volcano.
Earthquake details:
Unconfirmed quake reported: Near Flagstaff, Arizona, USA, 16 April 2021 06:53 GMT (4 km SSE)
All earthquakes at Sunset Crater

Takahara volcano (Honshu): magnitude 2.6 earthquake

A magnitude 2.6 earthquake occurred at the volcano 21 hours ago. The quake, which might be volcanic in origin, was located at a depth of 9.6 km depth at 2 km distance E from the volcano.
Earthquake details:
2.6 quake Nikko-shi, 20 km west of Ōtawara, Tochigi, Japan, Apr 16, 2021 11:49:04.74 (2 km E)
All earthquakes at Takahara

Tenorio volcano (Costa Rica): magnitude 2.8 earthquake

A magnitude 2.8 earthquake occurred at the volcano 17 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.0 km depth at 7 km distance NNW from the volcano.
Earthquake details:
2.8 quake 27 km southeast of San Jose, Upala, Provincia de Alajuela, Costa Rica, 16 de abril del 2021 1:15 am (7 km NNW)
All earthquakes at Tenorio

Washiba-Kumonotaira volcano (Honshu): 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 2.8 km depth at 17 km distance NE from the volcano.
Earthquake details:
2.6 quake Ōmachi-shi, 9.9 km west of Ōmachi, Omachi, Nagano, Japan, Apr 17, 2021 01:31:51.21 (17 km NE)
All earthquakes at Washiba-Kumonotaira