A major 7.7-magnitude earthquake shook
an area in the Pacific Ocean off the coast
of the US state of Alaska early Saturday,
the United States Geological Survey
(USGS) said.
The epicenter of the quake, which
occurred at 1328 GMT, was located 102
kilometers (63 miles) west of Craig,
Alaska, according to the USGS.
There were no immediate reports of
casualties or damage.
The Pacific Tsunami Warning Center said
there was no widespread threat of a
tsunami at this time, but it issued a
regional warning affecting the Alaskan
coast in the proximity of the epicenter.
The earthquake reading was based on the
open-ended Moment Magnitude scale
used by US seismologists, which
measures the area of the fault that
ruptured and the total energy released.
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