Such landslides fall from a comparatively high
elevation, cause extensive disruption and upheaval of loose materials and soils in their
way, and can travel considerable distances uphill against opposing slopes.
Secondly, there are medium-sized or large, rapid debris flows that are released from com-
paratively high elevations and are confined to gullies as they travel down the mountain-
side, similar
/media/vedurstofan-utgafa-2016/VI_2016_006_rs.pdf
temperature trend, 1.2°C per century.
Figure 3. Winter (Dec to March) temperatures at Stykkishólmur. The red line corresponds to a linear trend of 1.2°C per century.
We also see that the individual warm and cold winter periods are similar to the corresponding annual ones in temporal behaviour. There are a few warm winters during the 19th century warm period with temperatures
/climatology/articles/nr/1213
temperature trend, 1.2°C per century.
Figure 3. Winter (Dec to March) temperatures at Stykkishólmur. The red line corresponds to a linear trend of 1.2°C per century.
We also see that the individual warm and cold winter periods are similar to the corresponding annual ones in temporal behaviour. There are a few warm winters during the 19th century warm period with temperatures
/climatology/articles/nr/1213/
cannot rule-out a sudden escalation in seismicity in connection with a hazardous flood.
On-line overview of seismicity levels within the caldera is available.
An overview of the Katla volcanic system is given in the Catalogue of Icelandic Volcanoes.
News
2023
2022
/about-imo/news/micro-earthquake-activity-at-myrdalsjokull
On Thursday the
26th of March an on-line Scientific Advisory Board meeting was held
to discuss the ongoing unrest in the Reykjanes peninsula. Scientists from IMO,
University of Iceland, ISOR and representatives from Civil Protection, HS-Orka,
ISAVIA-ANS, and the Environment Agency of Iceland attended the meeting.Magmatic intrusion still the most likely explanation for
the ongoing
/about-imo/news/more-research-is-needed-to-decipher-the-on-going-activity-at-the-reykjanes-peninsula-as-a-whole
This can now be observed on the web on a graph that updates every five minutes.
At the time of writing (16:00), the level of subsidence exceeds 12 m but this represents only 10% of the expected total. In the coming days, the rate of subsidence will continue to increase. It is possible that radio contact will soon be lost with the GPS station, as subsidence will disrupt the line-of-sight for the radio
/about-imo/news/nr/3203
can run. The hazard related to lava flow is
more commonly on infrastructure, that is, damage or destruction of buildings or
other structures i.e. power line and roads. Lava flows can also close off
escape routes. Lava flows can threaten water sources due to pollution from the
magma, it can also slow down the infiltration into aquifers.
An example of damages from lava flows is the eruption
/volcanoes/volcanic-hazards/lava-flow/
increased.
Around March 17th, magma seems to have started to make its way upwards from the intrusion. The pipe is nearly vertical and lies below the eastern part of the ice-cap, but changes its direction at 2-3 km depth and runs approximately 4.5 km horizontally eastwards to the eruption site outside the ice margin (shown by a small, black line and a star). The relative locations show shallow
/about-imo/news/nr/1859
the cumulative seismic moment release per week (blue dots), i.e. the sum of the moment of all earthquakes in the respective week, in the left panel for the caldera and in the right panel for the dyke intrusion. The red line marks the onset of the eruption and the zero point is the beginning of the earthquake swarm on 16 August 2014. The last data point shows the current week (might still rise).
Note
/earthquakes-and-volcanism/articles/nr/3083