NW 8-15 m/s, strongest winds by the north coast. Light to moderate breeze in other parts. Rain or even sleet in the N- and NW-part, mainly near the coast. Mostly fair elsewhere. Temperature 3 to 11 deg. C, warmest in the southernmost part.
Gradually decreasing wind in the north tomorrow and becoming fair in the western part. Becoming northwest 5-13 m/s with light rain or sleet in the northeast until late afternoon. Somewhat cooler.
Forecast made 26.09.2016 09:40
|2.9||25 Sep 12:31:31||Checked||3.4 km NNW of Hveragerði|
|2.7||24 Sep 12:30:28||Checked||4.7 km N of Hábunga|
|2.5||25 Sep 09:59:11||Checked||4.8 km NNW of Hábunga|
Yeasterday (25 September) at 12:31 pm an M2.9 earthquake occurred just 2.2 km north of the town of Hveragerði in S-Iceland. It was well felt by people there in the vicinity and reported through our web-page.
Written by a specialist at 26 Sep 06:37 GMT
Around 800 earthquakes were detected last week by the national seismic network of the Icelandic Meteorological Office. An earthquake swarm began in Hellisheiði on 17 September. The largest quake of the sequence was magnitude 3.6 on 18 September at 22:29; it was felt in many places in south Iceland and in the capital. Another earthquake of magnitude 3.2 occurred the same day at 23:32 and it was also felt in many places. In total, over 400 earthquakes were measured in the swarm. The largest earthquake of the week was magnitude 3.8 in Bárðarbunga caldera on 18 September at 20:42. Seven earthquakes over magnitude 3.0 occurred this week, four in Bárðarbunga and three in Hellisheiði. An earthquake of magnitude 0.8 was detected in Hekla on 12 September. More
|Jökulsá á Fjöllum||Grímsstaðir||247.6 m³/s||4.8 °C|
|Ölfusá||Selfoss||323.5 m³/s||7.3 °C|
Generally stable springsnow conditions in the mountains. Avalanche bulletins will not be released any more this winter unless special conditions develop in the mountains.
Written by a specialist at 27 May 17:45 GMT
The avalanche forecast is written for large areas and doesn't necessarily represent avalanche danger in urban areas.
In June 2016 a weather station was established on the upper reaches of Dyngjujökull, about 10 km north of the Grimsvötn caldera, at 1689 m above sea level.
A seismometer has been in operation by the IMO at the site since the
autumn of 2014 and the main purpose of the new weather station is to monitor conditions at this important location in the network, amongst the
volcanoes of Vatnajökull.
Heavy rainfall in the East fjords and heavy rain is forecast for the North. River levels are elevated due to rain, with the possibility of mud flows.
Heavy rain and discharge is forecast for Northern Iceland. Flash flows cannot be excluded.Checking on drainage near buildings is encouraged. Read more
8.9.2016: The level of Skaftá river has risen significantly. This suggests that a glacial outburst flood is in progress.
Hydrogen sulphide is released from the floodwater as it drains from the ice-cap and H2S is particularly potent at the ice margin (poisonous levels). Travellers must stay away from the edges of Skaftárjökull and Tungnaárjökull while the flood occurs.
Crevasses will develop rapidly around the ice cauldron, so travellers on Vatnajökull should stay away from the region.Read more
Since mid-June, there has been heightened earthquake activity in the Katla caldera. Summertime increases in caldera seismicity are an almost annual occurrence at Katla, often associated with the drainage of geothermal meltwater in the form of minor floods in glacial rivers from Mýrdalsjökull
These are not necessarily precursors to an imminent volcanic eruption.
Similar unrest has taken place at Katla several times since the 1950s
without culminating in an explosive eruption.
Travellers are urged to not spend time close to Múlakvísl, especially the upper reaches of the river, as measurements near to the source show unhealthy levels of hydrogen sulphide, signifying high concentrations of geothermal fluids.Read more
The 47th Nordic Seismology Seminar will be held in Reykjavík, 11-13 October 2016.
The meeting will commence on Tuesday in the early afternoon and last until Thursday evening.
Those who are interested in attending, are encouraged to apply for participation.
The eruption in Holuhraun in central Iceland in 2014 - 2015 was the largest seen in Iceland since 1783. The ice-filled caldera of Bárðarbunga central volcano collapsed during the eruption as 1.9 km³ of magma flowed laterally from a magma reservoir under the volcano. Eruptions of this type are not common. This caldera collapse is the first where it has been possible to carry out detailed observations during the events. Unique data was obtained that threw new light on the mechanism of caldera collapses and their interaction with the associated eruptions. A large team of scientists has analyzed the data from Bárðarbunga and published the results in the journal Science.Read more