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Katla volcano (Southern Iceland): continuous seismic swarm may trigger glacial flood, jökulhlaup warning

Di, 18. Okt 2022, 04:57 04:57 AM | VON: MARTIN
Distribution of earthquakes beneath Mýrdalsjökull glacier, blue lines refer to water/drainage divides, MY signs refer to cauldrons (image: Kristín Jónsdóttir)
Distribution of earthquakes beneath Mýrdalsjökull glacier, blue lines refer to water/drainage divides, MY signs refer to cauldrons (image: Kristín Jónsdóttir)
A swarm of small earthquakes has been occurring beneath Mýrdalsjökull glacier covering Katla volcano over the past 2 days.
The most of events have been registered with a magnitude less than M 3 and only a couple of them exceeded M 3.
From the embedded image below, the current seismic activity has been taking place in the proximity of ice cauldrons numbered 10, 11 and 12.
In case a glacial flood will happen, the meltwater makes it into Múlakvísl river.
The seismic swarm is located in an area of persistent geothermal heat sources that leads to melting overlying ice and subsiding the ice sheet.

Vorherige Nachrichten

Fr, 4. Sep 2020, 08:13

Katla volcano (Iceland): earthquake yesterday

Earthquake detected near the Katla caldera yesterday (image: Volcano Discovery)
The Icelandic Met Office (IMO) recorded an earthquake with magnitude M 3.1 that occurred at 12:39 local time yesterday located in the northeastern part of the Katla caldera near Austmannsbunga. ... Read all
Do, 23. Jul 2020, 09:05

Katla volcano (Iceland): earthquake today

The Icelandic Met Office (IMO) recorded an earthquake with magnitude M 3.3 that occurred at 05:36 local time this morning. Another earthquake with magnitude M 2.7 occurred at 01:59 local time today. Few smaller earthquakes have also been detected. ... Read all
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Katla Vulkan
subglacial volcano 1512 m / 4,961 ft
Southern Iceland, 63.63°N / -19.06°W
Aktueller Status: normal / ruhend (1 von 5) Ausbrüche des Katla:
920 AD, 950 AD (?), 1150, 1177, 1245, 1262, 1311, 1357, 1416, 1440, 1450, 1500, 1580, 1612, 1625, 1660-61, 1721, 1755-56, 1823, 1860, 1918, 1955(?), 1999(?), 1918
Typische Aktivität
Explosive basaltic and dacitic eruptions, voluminous lava flows
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