Seismologists have recorded about 20 aftershocks after the earthquake of Alaska

© 2018 AFP / Frederick Florin a Seismograph. archival photoSeismologists have recorded about 20 aftershocks after the earthquake of Alaska© 2018 AFP / Frederick Florin

About 20 aftershocks were recorded after a powerful earthquake off the coast of Alaska, according to the US Geological survey (USGS).

The most powerful aftershock of magnitude 5.6 occurred at 02.47 am local time (14.47 GMT) in 240 kilometers from the city of Kodiak. The focus lies at a depth of 24 kilometers.

As previously reported, the U.S. Geological survey (USGS), off the coast of the U.S. state of Alaska in 278 kilometers South-East of the city of Kodiak earthquake with a magnitude of 8.2, was declared the tsunami threat. Later, the magnitude was downgraded to 7.9.

After the earthquake, national center for tsunami warning in the USA (NTWC) has announced the tsunami threat. The inhabitants of the coastal parts of the U.S. state of Alaska and the canadian province of British Columbia was encouraged to climb the hills.

At the moment, the center canceled a tsunami threat, but warned about the possibility of high waves in some coastal areas.

Seismologists have recorded about 20 aftershocks after the earthquake of Alaska© Infographical worst natural disasters of the XXI century

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