tsunami
Hazard Guide
Tsunami
Long-wavelength sea waves caused by seismic events that can inundate coastal zones with little warning.
Overview
Understanding Tsunami
Tsunamis are rare but high-impact events. Fast self-evacuation from coastal areas is vital when warnings are issued.
Overview
Overview
Tsunamis can produce multiple powerful waves and strong currents, with impacts lasting for hours.
Preparedness
Preparedness
Know natural warning signs, mapped evacuation routes, and assembly points on higher ground.
Warnings
Warnings
Treat strong or long earthquakes and sudden sea withdrawal as immediate natural tsunami warnings.
Evacuation
Evacuation
Evacuate on foot to high ground without delay and remain there until official all-clear messages are issued.
Response
Response
Follow emergency broadcasts, assist vulnerable persons when safe, and avoid coastal return too early.
Recovery
Recovery
Return only after clearance, assess contamination risks, and coordinate with response agencies.