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Tidal waves are shallow water waves caused by the gravitational interactions from the sun, moon and Earth, and tsunamis are large ocean waves triggered by volcanic eruptions, landslides and large earthquakes under the oc... More »

www.reference.com Science Earth Science Tsunamis

According to the National Oceanographic and Atmospheric Administration, a hurricane is a cyclonic storm that forms over tropical or subtropical waters and has sustained wind speeds of at least 74 mph, while a tsunami is ... More »

www.reference.com Science Weather & Tides Storms

Tsunamis usually occur when earthquakes take place underneath the ocean at tectonic plate boundaries, or when volcanic eruptions or landslides take place in the ocean. Underwater earthquakes cause the ocean floor to fall... More »

www.reference.com Science Earth Science Tsunamis
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Tsunamis happen when earthquakes, landslides or volcanic eruptions disturb the ocean floor. Most tsunamis occur when there are earthquakes at tectonic plate boundaries. When the ocean floor at the boundary rises or falls... More »

www.reference.com Science Earth Science Tsunamis

Tsunamis are formed by violent underwater earthquakes, landslides, volcanic eruptions, and, rarely, meteor impacts. These events cause sudden and drastic displacement of water, forming massive waves in the process. More »

www.reference.com Science Earth Science Tsunamis

Tsunamis, giant waves that sometimes travel across entire oceans, are triggered by underwater earthquakes or volcanic eruptions. In the open ocean, tsunamis can be barely noticeable, but as they approach land, the waves ... More »

www.reference.com Science Earth Science Tsunamis

A tsunami is a series of waves generated by a disturbance on the ocean floor. This disturbance can be caused by earthquakes, landslides, volcanic eruptions, explosions or meteorites. The waves have very long wavelengths,... More »

www.reference.com Science Earth Science Tsunamis