Overview of Earthquake activity

Earthquake activity throughout the country is described in a weekly summary that is written by a Natural Hazard Specialist. The weekly summary is published on the web every Tuesday. It covers the activity of the previous week in all seismic areas and volcanic systems in the country. If earthquake swarms are ongoing or significant events such as larger earthquakes have occurred during the week, they are specifically discussed. 

Weekly overview

Weekly overview, 10. – 16. July, week 28.

Around 2700 earthquakes were detected this week by IMO's SIL system, of which just over 500 events have been manually reviewed. A volcanic eruption started at 16:40 on 10. July by Litli Hrútur on the Reykjanes Peninsula. The fissures formed combined extended 800 meters, but quickly contracted into one main crater. Seismic activity on the peninsula reduced quickly at the start of the eruption. The activity started on 4. July and counted around 1500 events. Of the 2700 events detected this week around 2400 were on the peninsula, mostly around the dyke intrusion between Litli Hrútur and Keilir and around half of all events detected this week occurred before 17:00 on 10. July.
Other activity this week was continued seismic activity Southeast of Skjaldbreiður which started 3 weeks ago and besides Reykjanes Peninsula the most activity detected this week was on the Tjörnes Fracture Zone, of which around 30 earthquakes occurred 10 km Northeast of Grímsey.

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