Volcano earthquake report for Saturday, 31 Jul 2021

Sat, 31 Jul 2021, 23:50
23:50 PM | BY: EARTHQUAKEMONITOR
World map showing volcanoes with shallow (less than 20 km) earthquakes within 20 km radius  during the past 24 hours on 31 Jul 2021 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 31 Jul 2021 Number in brackets indicate nr of quakes.
Quakes detected near: Biliran (1 quake mag 2.5), Brennisteinsfjöll (5 quakes between mag 0.6-1.5), Clear Lake (20 quakes between mag 0.2-3.4), Coso (6 quakes between mag 0.6-1.5), Eldey (6 quakes between mag 0.1-1.5), Fourpeaked (1 quake mag 2.0)
Ilopango (1 quake mag 2.0), Iriga (1 quake mag 3.1), Iztaccíhuatl (2 quakes between mag 2.2-2.2), Katla (13 quakes between mag 0.1-3.3), Kilauea (1 quake mag 1.8), Kolumbo (2 quakes between mag 1.9-2.2), Krísuvík (3 quakes between mag 0.1-1.6), La Malinche (2 quakes between mag 3.5-3.5), Long Valley (2 quakes between mag 0.4-1.2), Maunaloa (1 quake mag 2.3), Mayotte Island (1 quake mag 2.2), Nisyros (1 quake mag 1.7), Reykjanes (8 quakes between mag 0.1-1.2), Salton Buttes (2 quakes between mag 1.1-1.5), San Cristobal (1 quake mag 2.3), Santorini (1 quake mag 3.3), Tangkubanparahu (1 quake mag 3.0), Taupo (2 quakes between mag 1.3-2.5), Tenerife (1 quake mag 1.3) (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:




Biliran volcano (Central Philippines): magnitude 2.5 earthquake

A magnitude 2.5 earthquake occurred at the volcano 18 hours ago. The quake, which might be volcanic in origin, was located at a depth of 11.0 km depth at 17 km distance WSW from the volcano.
Earthquake details:
2.5 quake Leyte, 11 km south of Naval, Biliran, Eastern Visayas, Philippines, 31 July 2021 - 01:32 PM (PST) (17 km WSW)
All earthquakes at Biliran

Clear Lake volcano (California): 20 earthquakes up to magnitude 3.4

Possible earthquake swarm: 20 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 16 minutes ago. Hypocenter depths ranged between 3.4 and 0.7 km.
Earthquake details: (only 5 largest)
3.4 quake 13 mi southwest of Clearlake, Lake County, California, USA, 31 Jul 2021 8:15 am (GMT -7) (17 km S)
2.2 quake 6km W of Cobb, CA, 31 July 2021 18:03 GMT (16 km S)
1.2 quake 4km WNW of Cobb, CA, 31 July 2021 15:38 GMT (15 km S)
1.1 quake 10km WNW of The Geysers, CA, 31 July 2021 19:57 GMT (18 km SSW)
1.1 quake 6km W of Cobb, CA, 31 July 2021 18:02 GMT (16 km S)
All earthquakes at Clear Lake

Iriga volcano (Luzon Island): magnitude 3.1 earthquake

A magnitude 3.1 earthquake occurred at the volcano 21 hours ago. The quake, which might be volcanic in origin, was located at a depth of 1.0 km depth at 18 km distance NE from the volcano.
Earthquake details:
3.1 quake Philippines Sea, 23 km northeast of Iriga City, Philippines, 31 July 2021 02:58 GMT (18 km NE)
All earthquakes at Iriga

Iztaccíhuatl volcano (Western & Central Mexico): 2 earthquakes up to magnitude 2.2

2 earthquakes occurred near (under) the volcano during 7 minutes, the last being recorded quake 20 hours ago. Hypocenter depths ranged between 10.0 and 4.0 km.
Earthquake details:
2.2 quake 7.2 km northeast of Amecameca, México, Mexico, 2021-07-30 22:40:46 (Hora de México) (7 km WSW)
2.2 quake 7.1 km northeast of Amecameca, México, Mexico, 2021-07-30 22:33:22 (Hora de México) (8 km W)
All earthquakes at Iztaccíhuatl

Katla volcano (Iceland): 13 earthquakes up to magnitude 3.3

Possible earthquake swarm: 13 earthquakes occurred near (under) the volcano during 15 hours, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 1.1 and 0.1 km.
Earthquake details: (only 5 largest)
3.3 quake Iceland: 6.7 Km E of Goðabunga 31 July 2021 12:53 GMT (4 km WNW)
2.9 quake Iceland: 3.0 Km NNW of Hábunga 31 July 2021 13:00 GMT (7 km SW)
2.1 quake Iceland: 2.8 Km NW of Hábunga 31 July 2021 12:59 GMT (5 km SW)
1.9 quake Iceland: 3.4 Km NW of Hábunga 31 July 2021 03:43 GMT (6 km W)
1.4 quake Iceland: 5.4 Km ESE of Goðabunga 31 July 2021 04:38 GMT (4 km W)
All earthquakes at Katla

Kolumbo volcano (Greece): 2 earthquakes up to magnitude 2.2

2 earthquakes occurred near (under) the volcano during 40 minutes, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 13.6 and 11.7 km.
Earthquake details:
2.2 quake Aegean Sea, 13 km northeast of Oia, Kykladene, South Aegean, Greece, 31 July 2021 19:03 GMT (7 km NE)
1.9 quake Aegean Sea, 19 km northeast of Oia, Kykladene, South Aegean, Greece, 31 July 2021 19:43 GMT (10 km NE)
All earthquakes at Kolumbo

La Malinche volcano (Western & Central Mexico): 2 earthquakes up to magnitude 3.5

2 earthquakes occurred near (under) the volcano during 4 minutes, the last being recorded quake 19 hours ago. Hypocenter depths ranged between 6.0 and 5.0 km.
Earthquake details:
3.5 quake 20 km northeast of Puebla City, Mexico, 2021-07-31 00:17:39 (Hora de México) (10 km S)
3.5 quake 19 km northeast of Puebla City, Mexico, 2021-07-31 00:13:20 (Hora de México) (11 km SSW)
All earthquakes at La Malinche

Maunaloa volcano (Hawai'i (Big Island)): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 22 hours ago. The quake, which might be volcanic in origin, was located at a depth of 0.1 km depth at 15 km distance E from the volcano.
Earthquake details:
2.3 quake 23 Km W of Volcano, Hawaii, 31 July 2021 01:20 GMT (15 km E)
All earthquakes at Maunaloa

Mayotte Island volcano (Indian Ocean): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 2 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 10 km distance SE from the volcano.
Earthquake details:
2.2 quake Mozambique Channel, 13 km south of Mamoudzou, Mayotte, 31 July 2021 21:28 GMT (10 km SE)
All earthquakes at Mayotte Island

San Cristobal volcano (Nicaragua): magnitude 2.3 earthquake

A magnitude 2.3 earthquake occurred at the volcano 18 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 17 km distance NNE from the volcano.
Earthquake details:
2.3 quake 31 km northeast of Chinandega, Nicaragua, 2021-07-31 00:08:12 (17 km NNE)
All earthquakes at San Cristobal

Santorini volcano (Greece): magnitude 3.3 earthquake

A magnitude 3.3 earthquake occurred at the volcano 3 hours ago. The quake, which might be volcanic in origin, was located at a depth of 13.1 km depth at 19 km distance E from the volcano.
Earthquake details:
3.3 quake Aegean Sea, 82 km southwest of Kos Town, Dodecanese, South Aegean, Greece, 31 July 2021 20:26 GMT (19 km E)
All earthquakes at Santorini

Tangkubanparahu volcano (West Java): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 7 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.0 km depth at 15 km distance SSW from the volcano.
Earthquake details:
Unconfirmed seismic-like event reported: 8.9 km northwest of bandon, West Java, Indonesia, 31 July 2021 16:24 GMT (15 km SSW)
All earthquakes at Tangkubanparahu

Taupo volcano (New Zealand): 2 earthquakes up to magnitude 2.5

2 earthquakes occurred near (under) the volcano during 47 minutes, the last being recorded quake 12 hours ago. Hypocenter depths ranged between 3.0 and 2.9 km.
Earthquake details:
2.5 quake 30 km southwest of Taupo, Waikato, New Zealand, 31 July 2021 11:20 GMT (16 km WSW)
1.3 quake New Zealand 31 July 2021 10:33 GMT (14 km WSW)
All earthquakes at Taupo

Unnamed 57.87°N/155.42°W volcano (Alaska Peninsula): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 5 hours ago. The quake, which might be volcanic in origin, was located at a depth of 11.6 km depth at 12 km distance NNW from the volcano.
Earthquake details:
2.2 quake 75 Km NW of Karluk, Alaska, 31 July 2021 18:26 GMT (12 km NNW)
All earthquakes at Unnamed 57.87°N/155.42°W

Previous news

Fri, 30 Jul 2021, 23:50
World map showing volcanoes with shallow (less than 20 km) earthquakes within 20 km radius  during the past 24 hours on 30 Jul 2021 Number in brackets indicate nr of quakes.
Quakes detected near: Bardarbunga (1 quake mag 1.9), Brennisteinsfjöll (2 quakes between mag 0.6-1.4), Buzzard Creek (1 quake mag 1.5), Clear Lake (29 quakes between mag 0.4-2.6), Fagradalsfjall (7 quakes between mag 0.1-1.0), Fourpeaked (1 quake mag 1.3) ... Read all
Thu, 29 Jul 2021, 23:50
World map showing volcanoes with shallow (less than 20 km) earthquakes within 20 km radius  during the past 24 hours on 29 Jul 2021 Number in brackets indicate nr of quakes.
Quakes detected near: Brennisteinsfjöll (14 quakes between mag 0.1-2.2), Bulusan (1 quake mag 2.2), Buzzard Creek (1 quake mag 1.3), Chiginagak (1 quake mag 3.5), Clear Lake (21 quakes between mag 0.3-2.1), Coso (3 quakes between mag 0.1-1.8) ... Read all
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