“The most probable cause for the ‘disappearing’ of the inlet delta is a combination of liquefaction and compaction of saturated sediments and some possible sliding and later spreading on the delta toward the deeper part of the lake”, Said Claudio Berti, director and state geologist from the Idaho Geological Survey.
Experts aren’t sure what caused the earthquake yet, however, it’s believed geologists are still looking into the matter.
The geologists think it’s unusual it would happen in such a quiet area,16 miles north of the Sawtooth Fault.
A 40-mile stretch of fault line discovered nearly a decade ago and since believed to be seismically inactive.
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