Southeast 3-10 m/s in the south and west parts and light rain or sleet, increased precipitation in the afternoon. Light wind and dry in North- and East-Iceland, but becoming cloudy late afternoon with sleet or snow, and northeast 8-15 there in the evening. Temperature 1 to 6 deg. C, but around freezing in the north and east.
Southeast 8-13 tomorrow in the south and west parts with light rain or sleet, temperature 0 to 5 deg. C. Lighter wind in North- and East-Iceland, mostly fair and frost 0 to 5 deg. C.
Forecast made 02.03.2021 05:00
If the map and the text forecast differs, then the text forecast applies
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Preliminary results
Size | Time | Quality | Location |
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5.1 | 01 Mar 16:35:46 | Checked | 1.3 km ESE of Keilir |
4.9 | 01 Mar 01:31:37 | Checked | 2.6 km SW of Keilir |
4.7 | 28 Feb 19:01:37 | Checked | 2.0 km SSW of Keilir |
An intense earthquake swarm started on the Reykjanes Peninsula on February 24th with an earthquake M5.7 followed by an M5.0.
Since then, quite a few earthquakes over M4.0 have been detected and two earthquakes over M5.0. They occurred on February 27th and March 1st.
Such intense swarms are not unknown, e.g. on June 10th in 1933, five earthquakes M4.9-M5.9 were recorded in Fagradalsfjall.
The swarm is still ongoing and since February 24th. the SIL system has detected around 14 000 earthquakes in the area.
Yesterday at 19:53 an earthquake of magnitude M3.3 occurred 16 km NNE of Grímsey island.
To night around 03:00 two earthquakes above magnitude 4 occured on Reykjanes, M4.3 and M4.6.
Written by a specialist at 02 Mar 06:56 GMT
Over 11 thousand earthquakes were recorded by the SIL-seismic network, but vast majority of them was located on Reykjanes peninsula were intense seismic swarm began on 24th of February. 1400 earthquakes have been manually reviewed. Three earthquakes M5.0 or larger have occurred. The largest one was M5.7 at 10:05 the morning of 24th of February. It was located by the NE end of Fagradalsfjall and was felt widely over the SW part of Iceland and the IMO also received felt reports from Snæfellnes peninsula, Westfjords, NW-Iceland and southern part of Iceland east to Vík and the Westman Islands. The second largest earthquake was M5.2 and occurred in the morning of 27th of February in a similar location as the M5.7 earthquake. Many other earthquakes were detected on 24th of February in the area between Grindavík and Kleifarvatn. Largest of them were M5.0 at 10:30 just N of Vigdísarvellir and M4.8 in Kleifarvatn. Total of 29 earthquakes M4.0 or larger were measured this week since the swarm began. Following the largest earthquakes rockfall was reported from steep slopes near the epicenter of the largest earthquakes and the Road administration has reported small cracks in roads in the area. More
River | Place | Flow | Water temperature |
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Norðurá | Stekkur | 31.6 m³/s | |
Austari Jökulsá | Skatastaðir | ||
Jökulsá á Fjöllum | Grímsstaðir | ||
Eldvatn | Eystri-Ásar | 1.2 m³/s | |
Ölfusá | Selfoss | 576.4 m³/s | 1.0 °C |
The avalanche bulletin is at a regional scale. It does not necessarily represent avalanche danger in urban areas.
Region | Tue Mar 02 | Wed Mar 03 | Thu Mar 04 |
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Southwest corner (experimental)
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Northern Westfjords
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Tröllaskagi
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East fjords
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On February 24th 2021, two earthquakes above magnitude M5 were recorded. The larger one, M5.7, was at 10:05 and at 10:30 a M5.0 was measured. Later that day at 12:37 a M4.8 was recorded. Since the beginning of this unrest 16 earthquakes above M4 have been recorded and 90 earthquakes above M3. They have been felt widely in the SW part of the country and the larges once in the NW part as far as Ísafjörður. Note that all reviewed earthquakes have occurred on the Reykjanes Peninsula, roughly between Kleifarvatn and Svartsengi.
Read moreThe year 2020 was stormy. The average wind speed was remarkably high and number of windy days was unusually high.
The annual mean temperature at all stations was higher than the 1961 to 1990 mean, but below the average of the last ten years. It was relatively warmer in the East and Northeast but colder in the Southwest and West.
The year was wet in the North and East. The annual precipitation in Akureyri has never been higher since the beginning of registration in 1928.
From 15 to 18 December 2020, several landslides hit the town of Seyðisfjörður, destroying or damaging more than 10 buildings. Thankfully, there were no injuries. The largest landslide occurred on 15 December, and it ranks as the most damaging landslide to have affected an urban area in Iceland.
Read moreAn article recently published in the journal Frontiers in Earth Science on glacier changes in Iceland describes changes in the volume and mass of the Icelandic glaciers since they reached historical maximum extent at the end of the so-called Little Ice Age shortly before 1900. The results of a number of studies covering about 99% of the glacier area are summarized in the article, which is a collaborative effort of many glaciologists at several institutes that conduct measurements and research on glaciers in Iceland.
Read moreLast week a series of earthquakes occurred on the Reykjanes Peninsula, between Fagradalsfjall and Kleifarvatn - the largest of which was a magnitude 5.6 earthquake in the vicinity of Núpshíðarháls, which occurred at 13:43 on 20th October. The maps displayed here show ground deformation associated with movement on faults during the period 16th-22nd October.
Read moreSeismic
activity has decreased significantly in recent days. About 180 earthquakes of
magnitude 2.2 or less were detected the last two days, for comparison, during
the first 24 hours following the 5.6 earthquake in Núpshlíðarháls, about 1700
earthquakes were detected in the area.
Ice in the ocean around Iceland has mostly arrived from afar.
It comes here from the Denmark strait, which connects the Atlantic Ocean and the Arctic Ocean, between Iceland and Greenland. Sometimes the ice comes directly from north to the northeast corner of Iceland, but all the ice comes from the same source: the East-Greenland current which flows from the Arctic Ocean due south along the east coast of Greenland, passing northwest Iceland.
Read more