Tsunami survival pods are available for purchase in Japan

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And while the capsule is small, it has room for a variety of items. Johnson said she’ll have a bike helmet, Mustang life preservers, flares, 40-days worth of freeze-dried camping food and water bladders inside hers. Dr. Bernard suggests that there would be a four-hour window in which the tsunami’s flooding would continue to take place.

Johnson said she will also have the ability to tether her capsule via a 100-foot steel cable connected to a concrete plug in the ground outside her house, essentially turning her into a buoy.

And in the event that the water becomes deeper than 100 feet, the sheer pin on the cable will break, allowing the pod to float freely. Inside, the seats feature a four-point harness. The water bladders, when full, help create ballast and keep it floating upright. It has a ceramic lining to help protect from heat and cold. Larger models of the pod can also feature two doors and dry powder toilets.

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