USGS says 'glacial collapse' caused 'catastrophic impacts downstream'

The US Geological Survey has confirmed that what it had initially reported as an earthquake "was instead a glacial collapse and debris flow" that "caused subsequent catastrophic impacts downstream". It had first reported the event as a magnitude 4.4 earthquake on Wednesday. "Additional analysis of nearby seismic stations, long period seismic waves, and satellite imagery led to the determination that the seismic event was instead a glacial collapse and debris flow, and th