Photo: Julia Volk

Can you ride a tsunami?

You can't surf a tsunami because it doesn't have a face. Many people have the misconception that a tsunami wave will resemble the 25-foot waves at Jaws, Waimea or Maverick's, but this is incorrect: those waves look nothing like a tsunami.

hilo.hawaii.edu - Why You Can't Surf a Tsunami - UH Hilo

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Why You Can’t Surf a Tsunami

You can’t surf a tsunami because it doesn’t have a face. Many people have the misconception that a tsunami wave will resemble the 25-foot waves at Jaws, Waimea or Maverick’s, but this is incorrect: those waves look nothing like a tsunami. On the contrary, a tsunami wave approaching land is more like a wall of whitewater. It doesn’t stack up cleanly into a breaking wave; only a portion of the wave is able to stack up tall. Since the wave is 100 miles long and the tail end of the wave is still traveling at 500 mph, the shore end of the wave becomes extremely thick, and is forced to run far inland, over streets and trees and houses. If you’re a surfer, you know how little control you have if your board is in whitewater. On a tsunami, there’s no face, so there’s nothing for a surfboard to grip. And remember, the water isn’t clean, but filled with everything dredged up from the sea floor and the land the wave runs over—garbage, parking meters, pieces of buildings, dead animals. This is not what you want to be caught paddling around in. You can’t duck-dive because the entire water column is in motion, not just the top few feet. You can’t exit the wave, either, because the trough behind is 100 miles away, and all that water is moving towards you. Big-wave riders should save their talents—and their lives—for big waves that are generated by massive storms. The only safe place to be during a tsunami is far inland and up on high ground.

You can't surf a Tsunami

Video transcript:

0:00 It’s just like a big mound of whitewater rolling in

0:07 taking buildings down, trees, cars, people.

0:10 And it’s never just one wave

0:13 it’s always a series of waves.

0:15 When you go to the beach and see surf,

0:16 you know that there’s not going to be just one wave that day.

0:19 There’s wave after wave after wave.

0:20 Well the same thing with a tsunami, there may be, um

0:24 a dozen waves spread out over two or three hours.

0:29 So nothing at all like the waves you surf.

0:31 And absolutely nothing you could survive if you were out there

0:35 trying to surf a regular swell

0:37 when a tsunami struck.

0:38 And bear in mind that after that first tsunami wave washes in

0:42 it’s going to pick up everything in its path

0:45 it’s going to pick up rocks, and trees, and houses

0:48 and covered with roofing iron

0:50 and it’s going to suck all that back out to sea

0:52 and the second wave’s going to have all that in it.

Also visit our tsunami gallery.

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