seismic sea wave

West Coast, rekindled concerns that a seismic sea wave along the northwest coast could kill, injure or displace tens of thousands of people and cause billions of dollars in damage.

West Coast, rekindled concerns that a seismic sea wave along the northwest coast could kill, injure or displace tens of thousands of people and cause billions of dollars in damage.

Fortunately, the rupture stopped when it reached about 40 km below the surface; if it had reached nearer the ocean floor, the seismic sea wave would have been far more devastating.

There must have been some surface changes because a tsunami, a seismic sea wave commonly miscalled a tidal wave, spread swiftly southward from Alaska.

Some 2,800 miles from the epicenter, at Hilo, Hawaii, the seismic sea wave caused the ocean to rise 121 ft.