glacier compared to previous week with a M3.2 in Bárðarbunga caldera on April 23rd and on the same date three events of M2.5 and above were located in Grímsvötn, the largest
one of M3.3. Activity in Askja and Heðurbreið was less than previous week but three earthquakes were located in Geitlandsjökull glacier.
One event was located in Fljót in Skagafjörður, of M2.8, where earthquakes are rare but have
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