Volcano earthquake report for Thursday, 5 Aug 2021

Quakes detected near: Cheb Basin volcanic area (1 quake mag 2.9), Chiginagak (1 quake mag 1.6), Clear Lake (10 quakes between mag 0.4-2.0), Coso (9 quakes between mag 0.4-1.5), Fourpeaked (1 quake mag 1.1), Katmai (2 quakes between mag 0.6-1.9)
Kialagvik (5 quakes between mag 2.1-3.2), Kilauea (35 quakes between mag 0.3-2.5), Krafla (3 quakes between mag 0.1-1.5), Loki-Fögrufjöll volcano (2 quakes between mag 1.1-1.9), Long Valley (2 quakes between mag 1.1-2.5), Mammoth Mountain (1 quake mag 1.2), Maroa (1 quake mag 1.9), Matutum (1 quake mag 2.2), Nisyros (9 quakes between mag 1.5-3.5), Nyiragongo (1 quake mag 3.6), Prestahnukur (2 quakes between mag 1.1-1.7), Reykjanes (8 quakes between mag 0.1-3.0), Rotorua (1 quake mag 3.0), Salton Buttes (3 quakes between mag 0.6-1.6), Sunset Crater (1 quake mag 3.0), Tjörnes Fracture Zone (7 quakes between mag 0.6-1.6), Yantarni (4 quakes between mag 1.8-2.1) (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:

Cheb Basin volcanic area volcano (Czechia): magnitude 2.9 earthquake

A magnitude 2.9 earthquake occurred at the volcano 20 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.0 km depth at 18 km distance NNE from the volcano.
Earthquake details:
2.9 quake 8.5 km northeast of Cheb, Karlovarský kraj, Czechia, 5 Aug 2021 6:03 am (GMT +2) (18 km NNE)
All earthquakes at Cheb Basin volcanic area

Kialagvik volcano (Alaska Peninsula): 5 earthquakes up to magnitude 3.2

5 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 7 hours ago. Hypocenter depths ranged between 8.5 and 0.0 km.
Earthquake details:
3.2 quake Kodiak Island Parish, 160 mi west of Saint Paul, Kodiak Island, Alaska, USA, 4 Aug 2021 5:45 pm (GMT -8) (14 km ESE)
3.1 quake Kodiak Island Parish, 157 mi west of Saint Paul, Kodiak Island, Alaska, USA, 4 Aug 2021 5:42 pm (GMT -8) (14 km ENE)
3.0 quake Kodiak Island Parish, 157 mi west of Saint Paul, Kodiak Island, Alaska, USA, 4 Aug 2021 7:21 pm (GMT -8) (15 km E)
2.4 quake 69 Km ESE of Ugashik, Alaska, 5 Aug 2021 8:56 am (GMT -8) (19 km E)
2.1 quake 60 Km SE of Ugashik, Alaska, 4 Aug 2021 8:07 pm (GMT -8) (9 km E)
All earthquakes at Kialagvik

Kilauea volcano (Hawai'i (Big Island)): 35 earthquakes up to magnitude 2.5

Possible earthquake swarm: 35 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 1 hour 35 minutes ago. Hypocenter depths ranged between 2.3 and 0.2 km.
Earthquake details: (only 5 largest)
2.5 quake 7 Km SW of Volcano, Hawaii, 5 Aug 2021 9:32 am (GMT -10) (2 km SE)
2.5 quake 6 Km S of Volcano, Hawaii, 4 Aug 2021 9:40 pm (GMT -10) (6 km ESE)
2.4 quake 4 Km S of Volcano, Hawaii, 5 Aug 2021 6:47 am (GMT -10) (6 km ESE)
2.3 quake 6 Km SW of Volcano, Hawaii, 5 Aug 2021 3:26 am (GMT -10) (1 km E)
2.2 quake 7 Km SW of Volcano, Hawaii, 5 Aug 2021 11:20 am (GMT -10) (0 km SSW)
All earthquakes at Kilauea

Long Valley volcano (California): 2 earthquakes up to magnitude 2.5

2 earthquakes occurred near (under) the volcano during 10 minutes, the last being recorded quake 23 hours ago. Hypocenter depths ranged between 6.8 and 6.1 km.
Earthquake details:
2.5 quake 14km SE of Mammoth Lakes, CA, 4 Aug 2021 5:27 pm (GMT -7) (17 km S)
1.1 quake 14km SE of Mammoth Lakes, CA, 4 Aug 2021 5:37 pm (GMT -7) (17 km S)
All earthquakes at Long Valley

Matutum volcano (Mindanao): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 24 hours ago. The quake, which might be volcanic in origin, was located at a depth of 12.0 km depth at 18 km distance N from the volcano.
Earthquake details:
2.2 quake Province of Sultan Kudarat, Soccsksargen, 16 km southwest of Magsaysay, Philippines, 5 Aug 2021 8:08 am (GMT +8) (18 km N)
All earthquakes at Matutum

Nisyros volcano (Greece): 9 earthquakes up to magnitude 3.5

9 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 19.9 and 1.9 km.
Earthquake details: (only 5 largest)
3.5 quake Aegean Sea, 61 km southwest of Kos, Dodecanese, South Aegean, Greece, 5 Aug 2021 4:12 pm (GMT +3) (14 km SSW)
3.2 quake Aegean Sea, 51 km south of Kos, Dodecanese, South Aegean, Greece, 5 Aug 2021 10:48 am (GMT +3) (15 km S)
2.4 quake Aegean Sea, 48 km south of Kos, Dodecanese, South Aegean, Greece, 5 Aug 2021 3:32 am (GMT +3) (12 km S)
2.2 quake Aegean Sea, 53 km south of Kos, Dodecanese, South Aegean, Greece, 5 Aug 2021 11:54 am (GMT +3) (19 km SSE)
2.1 quake Aegean Sea, 51 km south of Kos, Dodecanese, South Aegean, Greece, 6 Aug 2021 12:46 am (GMT +3) (15 km SSW)
All earthquakes at Nisyros

Nyiragongo volcano (Democratic Republic of Congo (DRC)): magnitude 3.6 earthquake

A magnitude 3.6 earthquake occurred at the volcano 24 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 14 km distance SSW from the volcano.
Earthquake details:
Earthquake or seismic-like event reported: 2.7 km northwest of Goma, Nord Kivu, Congo - Kinshasa, 5 Aug 2021 2:11 am (GMT +2) (14 km SSW)
All earthquakes at Nyiragongo

Reykjanes volcano (Reykjanes Peninsula, Iceland): 8 earthquakes up to magnitude 3.0

8 earthquakes occurred near (under) the volcano during 9 hours, the last being recorded quake 13 hours ago. Hypocenter depths ranged between 5.7 and 3.2 km.
Earthquake details: (only 5 largest)
3.0 quake Iceland: 2.2 Km NE of Reykjanestá 5 Aug 2021 7:29 am (GMT +0) (12 km SW)
1.3 quake Iceland: 2.7 Km NNE of Reykjanestá 5 Aug 2021 8:43 am (GMT +0) (11 km SW)
0.9 quake Iceland: 3.4 Km NNE of Reykjanestá 5 Aug 2021 8:43 am (GMT +0) (10 km SW)
0.4 quake Iceland: 3.3 Km NNE of Reykjanestá 5 Aug 2021 8:41 am (GMT +0) (10 km SW)
0.4 quake Iceland: 2.2 Km NE of Reykjanestá 5 Aug 2021 8:36 am (GMT +0) (11 km SW)
All earthquakes at Reykjanes

Rotorua volcano (New Zealand): 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 6 km distance SE from the volcano.
Earthquake details:
Unconfirmed quake or seismic-like event reported: 5.6 km east of Rotorua, Bay of Plenty, New Zealand, 5 Aug 2021 7:19 pm (GMT +12) (6 km SE)
All earthquakes at Rotorua

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 16 km distance SSW from the volcano.
Earthquake details:
Unconfirmed quake or seismic-like event reported: 5.4 mi northeast of Flagstaff, Coconino County, Arizona, USA, 4 Aug 2021 11:24 pm (GMT -7) (16 km SSW)
All earthquakes at Sunset Crater

Yantarni volcano (Alaska Peninsula): 4 earthquakes up to magnitude 2.1

4 earthquakes occurred near (under) the volcano during 2 hours, the last being recorded quake 21 hours ago. Hypocenter depths ranged between 7.3 and 0.0 km.
Earthquake details:
2.1 quake 65 Km SSE of Ugashik, Alaska, 4 Aug 2021 7:04 pm (GMT -8) (15 km ESE)
2.1 quake 65 Km SSE of Ugashik, Alaska, 4 Aug 2021 6:30 pm (GMT -8) (15 km ESE)
2.0 quake 71 Km SSE of Ugashik, Alaska, 4 Aug 2021 4:58 pm (GMT -8) (18 km SE)
1.8 quake 69 Km SSE of Ugashik, Alaska, 4 Aug 2021 6:54 pm (GMT -8) (17 km ESE)
All earthquakes at Yantarni