Shouldn't be too bad; USGS forecasts up to 1 meter tsunami.

e12e 21 hours ago | parent | next [-]

Nhk has some more information - looks like the areas hardest hit will have been hit by now, with 3m high waves:

https://www3.nhk.or.jp/nhkworld/en/news/weather-disaster/tsu...

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ekianjo 21 hours ago | parent [-]

No, estimated height has nothing to do with actual measurements

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ctxc 21 hours ago | parent [-]

Can you elaborate?

	▲	ekianjo 3 hours ago \| parent [-]
		Yes. The Japan Meteorological agency has a piss poor machine learning model that basically defaults to predicting 3 meters wave every time there is an earthquake in the sea and in the end it's usually a few dozens of centimeters. They lost all credibility by crying wolf every single time.

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Kye 20 hours ago | parent | prev [-]

1 meter is bad. That's a lot of water full of things you don't want slamming into you or any structure. Then it comes back full of even worse things.

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belorn 19 hours ago | parent [-]

Is 1 meter bad? In context it seems to be missing what kind of waves normally hit the coast line, and what kind tide differences exist, and what the current water level is when the wave hit.

What is a typical maximum wave height during hurricane seasons in north of japan?

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astrobe_ 19 hours ago | parent [-]

Apparently 2 meters is : A 2 meters (6 ft 7 in) high tsunami hit Chiba Prefecture about 2+1⁄2 hours after the quake, causing heavy damage to cities such as Asahi. (Tohoku 2011) [1]

WRT comparison with hurricane waves, I assume they carry a lot less energy than tsunami's, because they are "superficial waves" - caused by the friction of the wind on the water - whereas a tsunami wave is caused by the movement of a huge mass of mater.

[1] https://en.wikipedia.org/wiki/2011_T%C5%8Dhoku_earthquake_an...

	▲	Kye 18 hours ago \| parent [-]
		People vastly underestimate the danger of a moving body of water in general, but especially when that water is where it isn't normally. Even a relatively tame storm surge picks up sewage, dangerous chemicals, debris, and confused wild animals.