Alaska Earthquake
The tsunami threat is over, but according to the USGS, since 1900 there have been six other earthquakes of magnitude 7.0 and higher within 155 miles (250 km) of Tuesday’s quake. The largest of those was a 8.2 quake in 1938.
The United States Geological Survey says powerful 7.8 quake struck off Alaska's southwest coast; initially issuing tsunami warnings.
This quake hit the Alaska Peninsula on Tuesday at about 11:12 p.m. PST. It had a depth of 6 miles 9.6 kilometers and was centered 60 miles (96 kilometers) south-southeast of Perryville, Alaska.