1889
The Hawiia Rift collapses sending a slab of Rock 25 miles long and ten miles wide Down into the Ocean.
The Run on travels up to 75 miles at speeds reaching 200 MPH.
Ten Hours later the resulting wave reaches the coasts. As it climbs the Shelfs it reaches heights of over 2000 feet.
With a wave lenght of of 50~ 75 miles It take 15~20 minutes for the back edge to finally reach the Coast.
From Mexico North to Alaska and then south to Indonesia, almost nothing is left from the coast to hundreds of miles inland.
The Wave washed over the isle of Japan and into the sea of Japan, Destroying Japan, Korea and Russian Amur Province.
It raced up the flat Banks of the Yellow River all the way to the Three Gorges.
When it receded nothing was left below 2000 feet, No people animals, Buildings, Boats or even Trees.
The wave reaches as far or farther inland along the American Coast.
By the time the return wave reaches Hawaii, it is a minor Tsunami no more than 50 feet high.
Hawaii is the only remains of Civilization left in the north Pacific, and over the next several decades uses this to become a regional power.