New analysis finds real, though rare, tsunami threat to upper Cook Inlet


This panorama photo shows the shallow mudflats of upper Cook Inlet against the municipality of Anchorage. Photo courtesy of the Anchorage mayor’s office.

Scientists assessing tsunami threats throughout Alaska recently modeled the flooding scenario of the 1964 Great Alaska Earthquake and discovered that a tsunami could reach upper Cook Inlet, countering a long-held public belief that the region has no tsunami risk.

A new report by the University of Alaska Fairbanks and Alaska Division of Geological & Geophysical Surveys reveals an updated understanding of how tsunamis interact with tides and of the region’s potential tsunami hazard.

The report indicates that flooding could follow about four hours

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