 * A tsunami with damaging waves and powerful currents is
   possible.
 * Repeated coastal flooding is possible as waves arrive
   onshore, move inland, and drain back into the ocean.
 * Strong and unusual waves, currents and inland flooding
   can drown or injure people and weaken or destroy structures
   on land and in water.
 * Water filled with floating or submerged debris that can
   injure or kill people and weaken or destroy buildings and
   bridges is possible.
 * Strong and unusual currents and waves in harbors,
   marinas, bays, and inlets may be especially
   destructive.
 * Some impacts may continue for many hours to days after
   arrival of the first wave.
 * The first wave may not be the largest so later waves may
   be larger.
 * Each wave may last 5 to 45 minutes as a wave encroaches
   and recedes.
 * Coasts facing all directions are threatened because the
   waves can wrap around islands and headlands and into bays.
 * Strong shaking or rolling of the ground indicates an
   earthquake has occurred and a tsunami may be imminent.
 * A rapidly receding or receded shoreline, unusual waves and
   sounds, and strong currents are signs of a tsunami.
 * The tsunami may appear as water moving rapidly out to sea,
   a gentle rising tide like flood with no breaking wave,
   as a series of breaking waves, or a frothy wall of water.
