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Crescent City Downgrades Tsunami Warning to Advisory After Four-Foot Surge Damages Dock

Officials warn that strong currents along beaches pose hazards for residents returning to shore.

Dozens of onlookers March 12, 2011, came to see the damage at the Crescent City Harbor, which sustained the most damage of any harbor along the California coast after an earthquake in Japan the previous day triggered a tsunami.
Crab-fishing boats docked at the marina in Crescent City, Calif.
Crescent City, whose marina is seen here, is expected to see the worst tsunami waves in Northern California.
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Overview

  • NOAA issued a tsunami warning late Tuesday after an 8.8-magnitude earthquake struck off Russia’s Kamchatka Peninsula, triggering local sirens.
  • Crescent City Harbor Patrol directed roughly 100 vessels to move to deeper waters as waves approached.
  • Waves peaked at four to five feet before dawn Wednesday, lifting and submerging the harbor’s wave-attenuator dock.
  • City Manager Eric Wier reported no flooding or injuries, allowing downtown businesses and offices to reopen at their usual elevation.
  • The Mendocino Fracture Zone’s offshore ridge funnels and amplifies tsunami waves, sustaining Crescent City’s high vulnerability to surges.