Volcano earthquake report for Tuesday, 21 Jul 2020

Tuesday Jul 21, 2020 06:50 AM | BY: EARTHQUAKEMONITOR

World map showing volcanoes with shallow (less than 20 km) earthquakes within 20 km radius  during the past 24 hours on 21 Jul 2020 Number in brackets indicate nr of quakes.

World map showing volcanoes with shallow (less than 20 km) earthquakes within 20 km radius during the past 24 hours on 21 Jul 2020 Number in brackets indicate nr of quakes.

Quakes detected near: Ambang (1 quake mag 3.1), Brennisteinsfjöll (9 quakes between mag 0.1-2.0), Clear Lake (9 quakes between mag 0.3-1.0), Cosigüina (8 quakes between mag 2.0-3.0), Coso (11 quakes between mag 0.2-1.8), Eldey (12 quakes between mag 0.1-1.9)
Etna (8 quakes between mag 1.3-1.9), Grímsnes (1 quake mag 1.2), Grímsvötn (2 quakes between mag 0.8-1.3), Helgrindur (1 quake mag 1.6), Katla (15 quakes between mag 0.2-2.0), Kilauea (5 quakes between mag 1.9-2.5), Kolbeinsey Ridge (1 quake mag 1.5), Krísuvík (226 quakes between mag 0.1-4.3), Loki-Fögrufjöll volcano (1 quake mag 1.0), Long Valley (5 quakes between mag 0.4-1.4), Makushin (1 quake mag 1.1), Mauna Loa (3 quakes between mag 1.2-2.3), Reykjanes (380 quakes between mag 0.1-3.7), Snaefellsjökull (1 quake mag 1.3), Spurr (1 quake mag 1.2), Taranaki (1 quake mag 2.8), Tenerife (4 quakes between mag 0.9-1.3), Tindfjallajökull (1 quake mag 2.0), Tjörnes Fracture Zone (2 quakes between mag 0.7-1.0), Vatnafjöll (2 quakes between mag 0.5-1.6) (updated 06h50)

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:

Ambang volcano (Sulawesi & Sangihe Islands): magnitude 3.1 earthquake

A magnitude 3.1 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 16 km distance SSW from the volcano.
Earthquake details:
M 3.1 quake: Minahassa Peninsula, Sulawesi (Indonesia) on Mon, 20 Jul 17h12 (16 km SSW)
All earthquakes at Ambang

Cosigüina volcano (Nicaragua): 8 earthquakes up to magnitude 3.0

8 earthquakes occurred near (under) the volcano during 18 hours, the last being recorded quake 3 hours ago. Hypocenter depths ranged between 10.0 and 1.0 km.
Earthquake details: (only 5 largest)
M 3.0 quake: 1 Km al suroeste de Desembocadura del Río Estero Re (Nicaragua) on Mon, 20 Jul 10h12 (19 km WSW)
M 3.0 quake: 2 Km al noroeste de Desembocadura del Río Estero Re (Nicaragua) on Mon, 20 Jul 22h32 (17 km WSW)
M 3.0 quake: 4 Km al noreste de Desembocadura del Río Estero Rea (Nicaragua) on Mon, 20 Jul 09h21 (16 km W)
M 2.7 quake: 5 Km al sureste de Potosi, Cosiguina, Nicaragua on Tue, 21 Jul 03h51 (10 km W)
M 2.7 quake: 3 Km al noreste de Desembocadura del Río Estero Rea (Nicaragua) on Mon, 20 Jul 15h33 (19 km W)
All earthquakes at Cosigüina

Coso volcano (California): 11 earthquakes up to magnitude 1.8

Possible earthquake swarm: 11 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 36 minutes ago. Hypocenter depths ranged between 9.7 and 1.0 km.
Earthquake details: (only 5 largest)
M 1.8 quake: 13km E of Little Lake, CA (USA) on Tue, 21 Jul 05h11 (13 km S)
M 1.3 quake: 13km E of Little Lake, CA (USA) on Tue, 21 Jul 05h06 (13 km S)
M 1.1 quake: 13km E of Little Lake, CA (USA) on Tue, 21 Jul 05h07 (13 km S)
M 1.0 quake: 14km E of Little Lake, CA (USA) on Tue, 21 Jul 05h23 (13 km S)
M 0.9 quake: 22km E of Little Lake, CA (USA) on Mon, 20 Jul 10h04 (17 km SSE)
All earthquakes at Coso

Eldey volcano (Iceland): 12 earthquakes up to magnitude 1.9

Possible earthquake swarm: 12 earthquakes occurred near (under) the volcano during 11 hours, the last being recorded quake 13 hours ago. Hypocenter depths ranged between 14.0 and 1.1 km.
Earthquake details: (only 5 largest)
M 1.9 quake: 5.1 km SSE of Eldey (Iceland) on Mon, 20 Jul 07h25 (6 km WSW)
M 1.6 quake: 11.4 km NW of Eldeyjardrangur (Iceland) on Mon, 20 Jul 08h53 (11 km NE)
M 1.6 quake: 17.6 km N of Geirfuglasker (Iceland) on Mon, 20 Jul 18h03 (18 km NE)
M 1.5 quake: 9.9 km NNW of Geirfuglasker (Iceland) on Mon, 20 Jul 08h02 (14 km ENE)
M 1.2 quake: 6.5 km SSW of Eldeyjardrangur (Iceland) on Mon, 20 Jul 11h54 (7 km SSE)
All earthquakes at Eldey
Eldey is located at the beginning of the Reykjanes Ridge off the SW tip of Iceland. Its highest elevation is the top of Eldey Island, but most of the volcanic edifice is submerged.
Several eruptions occurred in historic times, last in 1926.

Katla volcano (Iceland): 15 earthquakes up to magnitude 2.0

Possible earthquake swarm: 15 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 14.5 and 0.1 km.
Earthquake details: (only 5 largest)
M 2.0 quake: 6.2 km E of Goðabunga (Iceland) on Mon, 20 Jul 15h13 (3 km ENE)
M 1.6 quake: 5.1 km ESE of Goðabunga (Iceland) on Mon, 20 Jul 15h13 (5 km E)
M 1.6 quake: 4.8 km ESE of Goðabunga (Iceland) on Mon, 20 Jul 09h37 (5 km E)
M 1.3 quake: 7.0 km N of Hábunga (Iceland) on Mon, 20 Jul 15h12 (3 km ENE)
M 1.1 quake: 4.2 km SE of Goðabunga (Iceland) on Mon, 20 Jul 15h27 (6 km E)
All earthquakes at Katla

Kilauea volcano (Hawai’i (Big Island)): 5 earthquakes up to magnitude 2.5

5 earthquakes occurred near (under) the volcano during 19 hours, the last being recorded quake 5 hours ago. Hypocenter depths ranged between 5.7 and 1.1 km.
Earthquake details:
M 2.5 quake: 12 km SSE of Volcano, Hawaii (USA) on Mon, 20 Jul 08h45 (13 km SW)
M 2.4 quake: 7 km WSW of Volcano, Hawaii (USA) on Mon, 20 Jul 08h39 (1 km E)
M 2.1 quake: 5 km SW of Volcano, Hawaii (USA) on Tue, 21 Jul 02h04 (2 km WSW)
M 2.0 quake: 5 km SW of Volcano, Hawaii (USA) on Mon, 20 Jul 07h06 (2 km NW)
M 1.9 quake: 9 km SSE of Volcano, Hawaii (USA) on Mon, 20 Jul 09h44 (11 km WSW)
All earthquakes at Kilauea

Krísuvík volcano (Iceland): 226 earthquakes up to magnitude 4.3

Possible earthquake swarm: 226 earthquakes occurred near (under) the volcano during 24 hours, the last being recorded quake 17 minutes ago. Hypocenter depths ranged between 13.3 and 0.2 km.
Earthquake details: (only 5 largest)
M 4.3 quake: 3.2 km ENE of Fagradalsfjall (Iceland) on Tue, 21 Jul 01h05 (6 km ESE)
M 3.4 quake: 1.4 km ENE of Fagradalsfjall (Iceland) on Mon, 20 Jul 08h15 (8 km ESE)
M 2.5 quake: 1.4 km NW of Fagradalsfjall (Iceland) on Mon, 20 Jul 11h58 (10 km E)
M 2.5 quake: 1.1 km WNW of Fagradalsfjall (Iceland) on Mon, 20 Jul 10h32 (10 km E)
M 2.4 quake: 0.4 km ENE of Fagradalsfjall (Iceland) on Mon, 20 Jul 06h59 (9 km ESE)
All earthquakes at Krísuvík

Mauna Loa volcano (Hawai’i (Big Island)): 3 earthquakes up to magnitude 2.3

3 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 1 hour 2 minutes ago. Hypocenter depths ranged between 2.2 and 0.5 km.
Earthquake details:
M 2.3 quake: 27 km E of Honaunau-Napoopoo, Hawaii (USA) on Tue, 21 Jul 05h47 (0 km WSW)
M 2.0 quake: 26 km E of Honaunau-Napoopoo, Hawaii (USA) on Mon, 20 Jul 15h09 (0 km SSE)
M 1.2 quake: 30 km E of Honaunau-Napoopoo, Hawaii (USA) on Tue, 21 Jul 00h52 (3 km NW)
All earthquakes at Mauna Loa

Reykjanes volcano (Iceland): 380 earthquakes up to magnitude 3.7

Possible earthquake swarm: 380 earthquakes occurred near (under) the volcano during 24 hours, the last being recorded quake 17 minutes ago. Hypocenter depths ranged between 16.3 and 0.3 km.
Earthquake details: (only 5 largest)
M 3.7 quake: 2.7 km NE of Grindavík (Iceland) on Mon, 20 Jul 11h45 (7 km WSW)
M 3.7 quake: 2.1 km SW of Fagradalsfjall (Iceland) on Mon, 20 Jul 08h55 (11 km W)
M 3.2 quake: 3.3 km SW of Fagradalsfjall (Iceland) on Mon, 20 Jul 18h18 (10 km W)
M 3.1 quake: 32.1 km SSE of Stykkishólmur (Iceland) on Mon, 20 Jul 07h08 (8 km N)
M 3.1 quake: 4.0 km SW of Fagradalsfjall (Iceland) on Mon, 20 Jul 08h20 (9 km W)
All earthquakes at Reykjanes

Taranaki volcano (North Island): 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 5.0 km depth at 17 km distance NNE from the volcano.
Earthquake details:
M 2.8 quake: New Zealand on Mon, 20 Jul 09h34 (17 km NNE)
All earthquakes at Taranaki

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