
USGS ShakeAlert
@USGS_ShakeAlert • 50,013 subscribers
ShakeAlert EEW System public safety information, news, and updates. ShakeAlert contributes to a Hazard Ready Nation (HRN). Posts & "likes" are not endorsements.
Videos

At 5:12 am on April 18, 1906, a magnitude 7.9 #earthquake shook San Francisco for over 60 seconds igniting several fires that burned for three days and destroyed nearly 500 city blocks. Today we commemorate 120 years of #seismic discovery, research, and resilience. USGS Earthquakes USGS California Governor's Office of Emergency Services Berkeley Seismo Lab California Geological Survey Caltech Seismo Lab San Francisco Department of Emergency Management SSA
USGS ShakeAlert42,185 Aufrufe • vor 2 Monaten

Today #ShakeAlert #EEW gets a boost! It's even more ready to take on the biggest quakes. It now includes Global Navigation Satellite System (GNSS) sensors that detect Earth-surface movement via satellite. GNSS includes the well-known US-based Global Positioning System (GPS).USGS
USGS ShakeAlert21,979 Aufrufe • vor 2 Jahren
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