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Katla volcano
subglacial volcano 1512 m / 4,961 ft
Southern Iceland, 63.63°N / -19.06°W
Current status: normal or dormant (1 out of 5)
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Katla volcano eruptions:
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
Typical eruption style:
Explosive basaltic and dacitic eruptions, voluminous lava flows
Last earthquakes nearby
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Katla volcano news & activity updates

Katla volcano update: Small earhquakes

Wednesday Jul 16, 2014 14:14 PM | BY: T

Location and time vs depth of recent earthquakes under Katla volcano
Location and time vs depth of recent earthquakes under Katla volcano
An increased number of small earthquakes, up to magnitude 2.7, has been occurring near the surface or at very shallow depths under Katla's ice cap since yesterday.
These quakes are most likely related to weight adjustments of the thick ice cap during the ongoing seasonal melting and unlikely to represent a true seismic swarm caused by (internal) volcanic activity.
In the meanwhile, the alert (uncertainty level) for the areas around rivers from the Mýrdalsjökull glacier has been cancelled by Iceland authorities.
Previous news
Epicenters of earthquakes at Katla during the past 7 days
Wednesday, Jul 09, 2014
Earthquakes have been more frequent recently under the volcano recently. Most of them were small (below mag. 3) and shallow events. It is unknown whether these relate to magmatic movements inside the volcano, increased hydrothermal activity or are adjustments of the ice cap due to increased melting. ... [more]
Depth and magnitude of quakes near Katla during August
Thursday, Aug 23, 2012
As can be seen from our new plots of recent nearby quakes, the number of earthquakes near Katla appears to have been gradually increasing during August. However, most quakes are very shallow and probably NOT caused by magmatic movements, but adjustments of the shallow hydrothermal system. A possibility is that this is a seasonal pattern caused by the warming and increased melting of ice during summer. ... [more]
Friday, Aug 17, 2012
A small swarm of quakes has been going on at Katla since yesterday. So far, 10 quakes have occurred today, including a M2.8 quake at 1.8 km depth 6.8 km E of Goðabunga. [more]
Friday, Jun 22, 2012
Another seismic swarm has occurred at Katla volcano yesterday. About 30 small quakes at shallow depths mostly between 1 and 6 km in the central part of the caldera were recorded and could indicate another intrusion or changes in the hydrothermal system. [more]

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