Seismicity increased slowly since February 1991 and peaked in an earthquake swarm at Gede volcano between 29 April and 1 May 1991, but was not followed by an eruption. On its peak on 29-30 April, about 100 volcanic earthquakes (40 deep and 60 shallow) were recorded per day, an increase of a factor of 10 compared to normal levels. On 30th April 3 shocks were felt. Seismic activity returned to normal levels in May.
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Improved multilanguage support
Thanks to your past donations, these features have been added recently:
Earthquake archive from 1900 onwards
Detailed quake stats
Additional seismic data sources
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