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Tjörnes Fracture Zone - news & activity updates
Sat, 5 Oct 2013, 09:00
The Húsavík-Flatey (HFF) transform faut and location of earthquakes in the TFZ (IMO)
The earthquake swarm has decreased in intensity. At least some scientists believe that the cause has been a magmatic intrusion in Iceland's northern rift zone that activated the Húsavík-Flatey (HFF) transform fault at the southern limit of the TFZ where the earthquakes were concentrated.
Tue, 1 Oct 2013, 16:06
Location of recent quakes at the TFZ
An intense earthquake swarm has been going on offshore North Iceland, 10 km NW of Gjögurtá, since 25 September. This morning, 2 earthquakes reaching magnitude 3 and 3.2 occurred at 06:14 and 07:41. In total, more than 1000 quakes have been recorded by IMO. ...more
Fri, 2 Aug 2013, 04:32
Location of recent quakes at the TFZ
A (probably tectonic) swarm of earthquakes has been occurring since yesterday in the eastern part of the TFZ, about 10-15 km north of the shore at various depths mostly below 15 km. It includes more than 100 quakes yesterday including 6 above magnitude 3 (up to 3.8 yesterday morning).
Depth vs time of earthquakes at the TFZ
Mon, 8 Apr 2013, 15:39
The seismic swarm continues with a decreasing trend. "Only" 65 earthquakes have been counted so far today, the largest being a 3.3 event 14 km NE of Grímsey this morning.
Sun, 7 Apr 2013, 06:24
Earthquakes in the TFZ during the past 48 hours (Icelandic Met Office)
The powerful earthquake swarm that started a week ago continues, but at reduced intensity compared to 2 April when the large magnitude 5.4 quake struck. Each day, hundreds of earthquakes have been occurring (more than 200 > magnitude 2 during the past 2 days). ...more
Tue, 2 Apr 2013, 15:22
Depth vs time of quakes under the Tjörnes Fracture Zone
A strong earthquake swarm including a widely felt magnitude 5.4 earthquake at 15 km depth this morning and hundreds of pre- and aftershocks is occurring in the Tjörnes Fracture Zone in a N-S elongated area about 15 km east of the island of Grimsey.
Map of recent quakes at the TFZ
Fri, 1 Mar 2013, 17:11
Recent earthquakes in Iceland (note the red dots of the swam in the TFZ north off Iceland)
An earthquake swarm is in progress east of Grímsey Island. So far, the largest quakes are below magnitude 3.
Wed, 30 Jan 2013, 16:49
Depth vs time of quakes (Jan 2013) in the TFZ
Earthquakes continue with typically 10-20 quakes recorded in the TFZ. The swarm that had started 20 Oct last year has now been going on for over 3 months and shows no signs of stopping.
Depth vs time of quakes (Dec 2012) in the TFZ
Tue, 11 Dec 2012, 06:06
Quakes during the past 7 days (red=during the past 48 hours)
The earthquake swarm in the Tjörnes Fracture Zone north off Iceland still continues at reduced intensity and there seems no end in sight. Most quakes are very small, but there are still occasional quakes at around magnitude 3, and the area remains at risk for a larger quake.
Time and depth of quakes at the TFZ since October
Tue, 20 Nov 2012, 12:05
The earthquake swarm still continues at much reduced pace.
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