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An M5.5 earthquake occurred east of Grímsey 2nd April 2013 followed by several hundred aftershocks. This marked the onset of an intensive swarm. The activity continued with gradually decreasing intensity the following day on both clusters. Around midnigh two earthquakes of magnitude 3.4 and 3.6 occurred in the northwestern part of the cluster and were felt in Grímsey. This led to a temporary increase in activity, which since then has been decreasing.

A M5.5 earthquake occurred at 00:59 on 2nd April 2013 about 15 km east of Grímsey island offshore North Iceland. The earthquake was felt at Grímsey, Húsavík, Raufarhöfn, Mývatnssveit, Akureyri and Sauðarkrókur. Another M4.7 earthquake followed at 08:56 and was located about 7.5 km northwest of the night's main event.

The Icelandic Met Office has developed an experimental avalanche web map viewer aimed at easing access of the public and specialists to the avalanche data gathered and processed within the institute. The current edition of this viewer features information on snow depth, risk zones, evacuation zones, and past avalanches.

6.3.2013 As everyone in Iceland is aware of, very bad weather is prevalent in all of the country. Reykjavík is unusually hard hit by winds and snow. Users of the web are advised to observe frequently updated maps and text forecasts, found at the upper part of the front page. Blowing snow is expected in the south and west parts until evening.

Discharge levels in the upper reach of the Hvítá catchment are decreasing rapidly. At 14:00 UTC 27 February, floodwater discharge at Fremstaver was about 264 cubic metres per second, which is 50% lower than yesterday's observations. Water-level measurements at all other monitoring locations in the catchment show that discharge levels are decreasing progressively. Although no further intense rainfall is forecast for the region during the coming days, flood conditions are expected to last for the next one to two days.