Over the last four articles, we have dissected the tsunami, from the anatomy of the wave to the natural warning signs, the foot evacuation, and vertical evacuation. We have moved from the theoretical to the tactical. But knowledge alone is not enough, it must be accessible when the ground shakes and the sea recedes.

In a crisis, “cognitive fragmentation” sets in. You will forget things you know perfectly well. You might remember to grab your phone but forget your shoes. You might remember the route but forget that the first wave isn’t the last.

This Master Checklist is your external brain. It consolidates the entire Tsunami Preparedness Series into a linear, chronological protocol. Print this out. Laminate it. Keep it by the door. It is the script that ensures you don’t just hope for the best, you execute a professional-grade response to the worst.

Disclaimer: The information provided in this article is for general informational and educational purposes only. It is not intended as, and should not be considered, legal, medical, or emergency-response advice. Tsunami risks vary greatly by geography. Always follow the instructions of local authorities and tsunami warning centers.

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Phase 1: Blue Sky Readiness (Seasonal Prep)

Goal: Map the routes and build the plan before the ground shakes.

The Intelligence

• Confirm Your Zone: Check local tsunami evacuation maps to see if you’re in a hazard zone.
• Map High Ground: Identify the nearest high ground (100 feet up or 2 miles inland).
• Map the Route: Identify and walk your primary and backup evacuation routes.
• Time It: Time your evacuation on foot.

The Vertical Option

• Identify: Your nearest tsunami evacuation structure or tall reinforced building.
• Confirm: It has accessible stairs (not just elevators).
• Map: The fastest route to it.

The Kit

• Go-Bag: Water, flashlight, whistle, sturdy shoes, charged phone, by the door.
• Alerts: Enable Wireless Emergency Alerts on your phone.

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Phase 2: The Earthquake (The Warning)

Goal: Recognize that the shaking is the warning.

• Drop, Cover, Hold On: During the shaking.
• Move: The moment the shaking stops, move to high ground on foot.
• Do Not Wait: For an official alert. The earthquake is the warning.

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Phase 3: The Natural Signs (The Confirmation)

Goal: Act on any natural warning sign.

• Receding Water: If the sea pulls back dramatically, run to high ground.
• The Roar: If you hear a freight-train roar from offshore, run to high ground.
• The Rule: Any one of these signs is enough. Do not wait for all three.

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Phase 4: The Evacuation (The Foot Race)

Goal: Reach high ground on foot.

• On Foot: Do not drive. Roads will be gridlocked.
• The Route: Follow your pre-mapped route to high ground.
• The Backup: If the route is blocked, go up and inland by any path.
• Vertical: If you can’t reach high ground, climb a tall reinforced building.

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Phase 5: The Wait (The Series)

Goal: Survive the series of waves.

• Stay Put: Remain on high ground for hours.
• Do Not Return: After the first wave. The first is rarely the largest.
• The All-Clear: Wait for the official all-clear before returning.

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Phase 6: The Recovery (After the All-Clear)

Goal: Return safely.

• Watch: For downed power lines, debris, and contaminated water.
• Check In: Account for family and neighbors.
• Document: Photograph damage for insurance.
• Boil Water: Assume tap water is contaminated until authorities say otherwise.

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Final Tips

• Print this checklist: Keep a physical copy by the door.
• The Family Drill: Practice the full evacuation, including once at night.
• The Neighbor Pact: Know which neighbors have high ground or a tall building, and agree to help each other.