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If someone needs immediate help with tsunami natural signs, use emergency mode.
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DEVELOPMENT FIXTURE — After coastal earthquake or sudden sea retreat exposing seabed — a tsunami may follow within minutes.
The essentials if you need to act right now.
Sea pulled back or big quake — run uphill inland now. Warn others. Do not wait.
What might I see? Observable signs — no diagnosis required.
DEVELOPMENT FIXTURE — Waterline suddenly far out, loud ocean roar, felt strong coastal quake.
DEVELOPMENT FIXTURE — Official warning or locals shouting tsunami.
Optional deeper explanation — not required to act.
DEVELOPMENT FIXTURE — Tsunami can arrive before official warning systems activate.
DEVELOPMENT FIXTURE — Receding sea exposes fish and seabed — classic natural sign.
Check the scene before you approach.
Civilian-safe actions you can take.
DEVELOPMENT FIXTURE — Drop everything. Run perpendicular to beach uphill.
DEVELOPMENT FIXTURE — Shout tsunami warning to everyone in earshot.
DEVELOPMENT FIXTURE — Climb at least 30 m elevation or 2 km inland if flat — higher is better.
DEVELOPMENT FIXTURE — Stay away from river mouths — tsunami travels up rivers.
When and how to get professional help.
DEVELOPMENT FIXTURE — Self-evacuate on natural signs. Do not stay to film.
DEVELOPMENT FIXTURE — 112 from high ground — report location and people missing from beach.
DEVELOPMENT FIXTURE — Follow official all-clear before descending.
DEVELOPMENT FIXTURE — Coastal rescue continues hours after first wave.
Dangerous actions, when not to attempt rescue, and common myths.
DEVELOPMENT FIXTURE — Do NOT go to beach to look at exposed seabed.
DEVELOPMENT FIXTURE — Do NOT assume one wave only — surges repeat for hours.
DEVELOPMENT FIXTURE — Wait for SMS alert before leaving beach after earthquake
DEVELOPMENT FIXTURE — Natural signs mean evacuate immediately — waves can arrive in minutes.
DEVELOPMENT FIXTURE — Caught on beach filming receding water.
Other scenarios in the same family.
Aftershock
DEVELOPMENT FIXTURE — The ground shakes again after the main earthquake.
Avalanche warning
DEVELOPMENT FIXTURE — Avalanche danger is high on slopes where you are traveling or living.
Buried in avalanche
DEVELOPMENT FIXTURE — You or someone nearby is buried in avalanche snow.
Compound disaster
DEVELOPMENT FIXTURE — Multiple disasters overlap — e.g. earthquake and tsunami, cyclone and flood.
DEVELOPMENT FIXTURE — Injured on evacuation route — flag passing rescue vehicles.