5 ms·
USGS page on the quake: http://earthquake.usgs.gov/earthquakes/eventpage/us1000778i#executive http://earthquake.usgs.gov/earthquakes/eventpage/us1000778i#...
by saretired 10y ago
USGS page on the quake: http://earthquake.usgs.gov/earthquakes/eventpage/us1000778i#executive http://earthquake.usgs.gov/earthquakes/eventpage/us1000778i#...