Tsunami

Science / Geology / Tsunami: A large sea wave normally produced by sudden movement of the ocean floor caused by an earthquake or volcanic eruption. These waves can travel at high speeds across an ocean basin and cause great destruction when they reach land.

Long Period Waves

Science / Tides and Currents / Long Period Waves: Forced or free waves whose lengths are much longer than the water depth. See tidal wave and tsunami. MORE

National Water Level Observation Network (NWLON)

Science / Tides and Currents / National Water Level Observation Network (NWLON): The network of tide and water level stations operated by the National Ocean Service along the marine and Great Lakes coasts and islands of the United States. The NWLON is composed of the primary and s MORE

Tidal Wave

Science / Geology / Tidal Wave: A term that is incorrectly used in reference to a tsunami. Tsunamis have nothing to do with the tides. MORE

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