tsunami
Let an agent handle tsunamis safely: route people to official warnings and evacuation advice first, explain natural warning signs and describe past events from reliable sources.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent handle tsunamis safely: route people to official warnings and evacuation advice first, explain natural warning signs and describe past events from reliable sources.
A series of large ocean waves caused by the sudden displacement of water, usually by undersea earthquakes, but also by landslides, volcanic eruptions or meteorite impacts, which can flood coasts far from the source.
What it is for: A natural hazard requiring warnings, preparedness and response.
It can be find official tsunami warnings; recognise natural warning signs and act; find evacuation routes and zones; learn about past tsunamis from sources.
Distinguishing features
Caused by water displacement
Long wavelengths and high speed in deep water
Can travel across oceans
Multiple waves over hours
What it looks like
A rapidly rising sea or a wall of water, sometimes preceded by the sea drawing back.
How it is recognised
Sudden sea withdrawal or rise
Tsunami warning signs and evacuation routes
Storm surges and tidal bores are different phenomena
Related models
is a kind of - category
is caused by - common cause
is warned by - service
is contrasted with - related hazard
In practice
Families and kinds
earthquake-generated tsunamis
landslide tsunamis
volcanic tsunamis
meteotsunamis
megatsunamis (rare)
Standards and regulation
UNESCO IOC tsunami warning systems
National civil protection plans
Failure modes and hazards
Returning to the shore too early
Going to watch the sea withdraw
Relying on unofficial information
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Emergency Act now.
Life safety comes first.
Warning
Official warnings.
Warning
Official warning.
- Is there an official tsunami warning for this coast right now? provenance
- What evacuation instructions are given? provenance
Signs
Natural warnings.
Signs
Natural warning signs.
- Has there been a strong or long earthquake, or has the sea suddenly withdrawn or risen? boundary
- Should people move immediately to high ground or inland, as official guidance advises? action
Preparedness Before.
Preparation saves lives.
Zones
Evacuation zones.
Zones
Evacuation zones.
- Is this location in a tsunami hazard zone, according to official maps? provenance
- Where is the nearest evacuation route? provenance
Alerts
Sign-up.
Alerts
Alert systems.
- How are tsunami alerts issued here, such as sirens or phone alerts? provenance
- How can visitors receive them? action
After Recovery.
Danger lasts hours.
Return
All clear.
Return
Returning.
- Has the official all clear been given? provenance
- Why can later waves be larger? definition
Help
Aid and tracing.
Help
Help after disaster.
- Where can affected people get aid and trace relatives? provenance
- Which organisations are responding? provenance
Science Understanding.
Science explains tsunamis.
Physics
Waves.
Physics
Tsunami physics.
- Why do tsunamis grow as they reach shallow water? definition
- How fast do they travel? measurement
History
Past events.
History
Past events.
- Which past tsunamis affected this region, according to reliable sources? provenance
- What lessons were drawn? provenance
What the second pass must settle
- Should historical tsunamis be separate entries?
- How should warning centres be linked by region?
- How should evacuation maps be linked?