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Mount St. Helens in 1980
mountsthelens1980.bsky.social
did:plc:g2pgiogj2d5g2csxnkckrxt4
USGS: "Earthquake activity at Mount St. Helens was not monitored by seismologists until seismometers were installed near the volcano in 1972. From January 1975 through early 1980, only 44 earthquakes were located within 35km (22 mi) of the volcano."
2024-07-04T20:07:44.578Z