09-02-2017, 03:56 AM
(09-02-2017, 03:49 AM)guohua Wrote:Quote:Still, the ongoing swarm is now one of the longest and largest on record. The largest swarm ever recorded was in October 1985; it lasted for three months and included more than 3,000 earthquakes.Source
There was another large swarm in 2010, when more than 2,000 events were recorded over a month.
Hmmm... 1985 to 2010 = 25 years apart, 2010 to 2017 = 7 years apart... me does think the contractions are getting closer...