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The word seaquake was first coined in the 1880's by Eberhart Rudolph, Professor of Geophysics at the University of Strassburg in Germany. As defined by Professor Rudolph, the word was originally intended to reference an earthquake "felt" by crew members on a vessel.
Underwater earthquakes disturb the solid earth as well as the water above the epicenter. The disturbance in the solid earth is called a earthquake whereas the disturbance in the water is called a seaquake.
A tsunami is properly referenced as a seaquake since the waves in the water are produced by an earthquake in the solid earth.
For an interesting treatment on seaquakes, read Captain David Williams' SEAQUAKE THEORY to explain why whales mass strand themselves on beaches around the world.
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What tsunami is not a tidal wave?
The one that is not caused by and earthquake or seaquake. Well you can see that a tsunami will still be in the air, it can be called the wall of water, it goes over land. Wile a tidal wave is a beach wave that still goes over land, that means that a tsunami is worse.
How do an earthquake occur?
An earthquake occurs when there is a sudden release of energy in the Earth's crust, resulting in seismic waves that shake the ground. This release of energy is usually caused by the movement of tectonic plates along faults in the Earth's crust. The point on the Earth's surface directly above where the earthquake originates is called the epicenter.
What is the difference between a tidal wave and a rogue wave?
A tidal wave is a shallow-water wave caused by the gravitational interactions between the Earth, Sun, and Moon, typically associated with tides. A rogue wave, on the other hand, is an abnormally large and unpredictable ocean wave that can occur even in calm conditions, often posing a threat to ships at sea. Rogue waves are not related to tides and can appear suddenly and unexpectedly.
How do tsunamis travel across the sea?
When tsunamis form in the open ocean they can reach speeds of 500 miles per hour, but they are very small: usually less than three feet high. When they hit shallow water as they approach a shoreline, they slow down, sometimes to less than 50 miles per hour, but build dramatically in weight because of how heavy the water is.2nd Answereer says: In the deep open sea, tsunamis move at speeds approaching a jet aircraft (500 mph or more). As they approach the shore, they slow down. When a tsunami arrives at the shore, it usually does so as a rapidly rising tide moving at about 70 km/hour (45 mph).
