A tsunami is a series of large waves generated by an abrupt movement on the ocean floor that can result from an earthquake, an underwater landslide, a volcanic eruption or - very rarely - a large meteorite strike. However, powerful undersea earthquakes are responsible for most tsunamis.Mar 10, 2011
The following are guidelines for what you should do if a tsunami is likely in your area:Turn on your radio to learn if there is a tsunami warning if an earthquake occurs and you are in a coastal area.Move inland to higher ground immediately and stay there.Stay away from the beach.More items...
Stay away from coastal areas until officials announce that it is safe to return. Evacuation should not be automatic. Before evacuating you should determine if you are in a hazard zone and consider possible hazards that may exist along your evacuation route. Know if you live, work, or play in a tsunami hazard zone.
A tsunami is a series of very long ocean waves created when a large body of water is displaced. ... It's often incorrectly called a tidal wave, which is a periodic movement of water produced by the gravitational pull of the sun and moon. Tsunamis are not connected with the weather or tides.Sep 29, 2009
Tsunami are actually waves caused by sudden movement of the ocean due to earthquakes, landslides on the sea floor, land slumping into the ocean, major volcanic eruptions or large meteorite impacts. ... the top of an underwater volcano may collapse downwards, so that the overlying water also drops.
What happens when a tsunami encounters land? ... Just like other water waves, tsunamis begin to lose energy as they rush onshore - part of the wave energy is reflected offshore, while the shoreward-propagating wave energy is dissipated through bottom friction and turbulence.
As a tsunami approaches shorelines, water may recede from the coast, exposing the ocean floor, reefs and fish. 3. Abnormal ocean activity, a wall of water, and an approaching tsunami create a loud "roaring" sound similar to that of a train or jet aircraft.
Plan an evacuation route that leads to higher ground. Know the warning signs of a tsunami: rapidly rising or falling coastal waters and rumblings of an offshore earthquake.
Cover yourself and stay protected during the earthquake. 2. If authorities warn or you have reason to believe a tsunami is imminent,climb to higher ground or higher floors, at least 30 meters above sea level. If there is no higher ground available, a forest could offer protection.Jan 7, 2005
A tsunami is a series of waves generated in an ocean or other body of water by a disturbance such as an earthquake, landslide, volcanic eruption, or meteorite impact. ... Undersea landslides, which can be caused by large earthquakes, can also cause tsunami waves to form as water attempts to find a stable position.Apr 28, 2016