-fluid pressure
can cause
increased seismicity. Decreased glacial loading could
also be
another
explanation.This graph shows seismicity since 2011. High
earthquake rates are observed, and the largest earthquakes have magnitudes
above M4. Seismicity has decreased in the past year.When will Katla erupt?Seismic
activity in Katla has, in recent years,
been
mainly
characterized by shallow
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