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Unlike Japan California's' continental shelf is very steep and almost acts like a drop off when you get far enough out. Most of a Tsunamis power is below the surface so If a Tsunami were to approach California It would lose a great deal of energy as it hit the shelf and the remaining would still need to travel almost 30 miles until it reached the coast at the longest near San Fransisco and 10 miles until it reached the coast near Cambria at the smallest.

So could a Tsunami happen in California?

If it was significantly stronger than the recent one that hit Japan than yes and the force that created such a strong wave would also create another Tsunami that would wipe the island country off the map.

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14y ago

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