The undersea earthquakes cause movements of sea water (tidal waves or tsunamis). Tsunamis are a series of tidal waves, earthquakes product at the bottom of the sea or near coastal areas, the collapse of large masses of ice on land or sea or a lake, and occasionally may result from collapse the crater of a volcano located near or below sea level. Are also called tsunamis. On approaching the shore with his strength and huge size, the waves burst with destructive force, being able to disappear populations found on the shore. We know that is not the first wave that causes the most damage, and his strength is less than the following.
The truth is that tsunamis are the result of submarine volcanic eruptions and earthquakes that shake the planet. Tsunamis cross the ocean in the form of low waves, often without the ships on the high seas are perceived, because the speed with which slide reaches to 270 km per hour at 15 minute intervals. Approaching the beach on a huge rise (with waves of 18 meters and 30 meters aplaceradas areas in the coves) and burst with destructive force, but not always the first is what does more damage. The tsunami wave has its origin in a seismic wave caused by the sudden displacement of a water body that is able to travel huge distances before coming into contact with the earth and its speed is related to water depth. Of such natural phenomena, occurring in the Pacific are the most disasters have caused to mankind, especially in countries like Japan, Chile and Peru.
Before arriving at a beach, we suspect the arrival of a tsunami, first because the waves get bigger and become stronger. But the most powerful signal is when the water begins to move away from the shore leaving dry boats, reefs and even fish. When this happens, run out to sea and stay away as much as possible to high places, because the next thing will be the deafening noise of a huge wave which can vary between six and twenty meters high and in the bays can reach frightening proportions. In deep water, a tsunami can have up to 200 miles wide, but only 0.5 meters high. As it travels towards the shoreline and shallow waters, can reach over 700 kph speed, as fast as a jet. For when it reaches the coast, a tsunami can get 50 meters high. Hitting land buildings and vegetation can drag with incredible strength
The truth is that tsunamis are the result of submarine volcanic eruptions and earthquakes that shake the planet. Tsunamis cross the ocean in the form of low waves, often without the ships on the high seas are perceived, because the speed with which slide reaches to 270 km per hour at 15 minute intervals. Approaching the beach on a huge rise (with waves of 18 meters and 30 meters aplaceradas areas in the coves) and burst with destructive force, but not always the first is what does more damage. The tsunami wave has its origin in a seismic wave caused by the sudden displacement of a water body that is able to travel huge distances before coming into contact with the earth and its speed is related to water depth. Of such natural phenomena, occurring in the Pacific are the most disasters have caused to mankind, especially in countries like Japan, Chile and Peru.
Before arriving at a beach, we suspect the arrival of a tsunami, first because the waves get bigger and become stronger. But the most powerful signal is when the water begins to move away from the shore leaving dry boats, reefs and even fish. When this happens, run out to sea and stay away as much as possible to high places, because the next thing will be the deafening noise of a huge wave which can vary between six and twenty meters high and in the bays can reach frightening proportions. In deep water, a tsunami can have up to 200 miles wide, but only 0.5 meters high. As it travels towards the shoreline and shallow waters, can reach over 700 kph speed, as fast as a jet. For when it reaches the coast, a tsunami can get 50 meters high. Hitting land buildings and vegetation can drag with incredible strength
Historical tsunamis: Since 1596 Japan has been the victim in 15 cases of tsunamis. The 1896, named centennial killed 27.122 people. The tsunami that resulted from the explosion of Krakatoa volcano, with waves of 40 feet, devastated the coasts of Java and Sumatra, killing more than 30 000 people. The tsunamis that were caused by the explosion of the volcano Krakatoa in the East Indies in 1883, and whose waves that swept the world were caught up by the tide gauges of the Channel. Hawaii was the victim of these tsunamis or tidal waves in 1946 and 1957, due to the effects of earthquakes in the Aleutian Trench, a distance of more than 3.200
kms. of the archipelago. On that sad occasion, Kawela Bay collapsed and killed 159 people.
The tsunami in Japan: recently, in Japan there was an earthquake of 8.9 magnitude on the Richter step. This earthquake produce a devastating earthquake. In this tsunami destroyed many buildings, many people killed (over 10,000), missing people and people without shelter.
"Here is a video of how the tsunami hit the area every nord west of Japan and the strength that it had:
kms. of the archipelago. On that sad occasion, Kawela Bay collapsed and killed 159 people.
The tsunami in Japan: recently, in Japan there was an earthquake of 8.9 magnitude on the Richter step. This earthquake produce a devastating earthquake. In this tsunami destroyed many buildings, many people killed (over 10,000), missing people and people without shelter.
"Here is a video of how the tsunami hit the area every nord west of Japan and the strength that it had:
MAREMOTOS O TSUNAMIS
Los terremotos submarinos provocan movimientos del agua del mar (maremotos o tsunamis). Los maremotos son una serie de olas gigantescas, producto de movimientos telúricos en el fondo del mar o cerca de las áreas costeras, de la caída de grandes masas de tierra o hielo sobre el mar o un lago y, ocasionalmente, pueden ser resultado del colapso del cráter de un volcán ubicado cerca o debajo del nivel del mar. Reciben también el nombre tsunamis. Al acercarse a la orilla con su fuerza y tamaño descomunal, las olas revientan con fuerza destructora, siendo capaces de desaparecer las poblaciones que se encuentran en la orilla. Se sabe que no es la primera ola la que causa mayor daño, pues su fuerza es menor a las siguientes.
Lo cierto es que los Tsunamis son el producto de las erupciones volcánicas y temblores submarinos que sacuden el planeta. Los tsunamis atraviesan el océano en forma de olas bajas, muchas veces sin que las naves que están en alta mar las perciban, porque la velocidad con que se deslizan alcanza hasta los 270 Kms. por hora, a intervalos de 15 minutos. Al acercarse a las playas se elevan de forma descomunal (con olas de 18 metros en áreas aplaceradas y 30 metros en las calas) y revientan con fuerza destructora, aunque no siempre la primera es la que hace más daño. La ola tsunami tiene su origen en una onda sísmica provocada por el súbito desplazamiento de una masa de agua que es capaz de recorrer enormes trayectos antes de tener contacto con la tierra y su velocidad está relacionada con la profundidad de las aguas. De este tipo de fenómenos naturales, los que suceden en el océano Pacífico son los que más desastres han causado a la humanidad, especialmente en países como Japón, Chile y Perú.Antes de llegar a una playa, podemos sospechar la llegada de un tsunami, primero porque las olas se agrandan y llegan con más fuerza. Pero la señal más inequívoca es cuando el agua comienza a alejarse de la orilla dejando en seco embarcaciones, arrecifes y hasta peces. Cuando esto suceda, corra fuera del mar y aléjese lo más que pueda hacia lugares altos, porque lo siguiente que vendrá será el ruido atronador de una inmensa ola que puede variar entre los seis y veinte metros de altura y que en las ensenadas puede alcanzar pavorosas proporciones. En aguas profundas, un maremoto puede tener hasta 200 kilómetros de ancho, pero sólo 0,5 metros de altura. A medida que viaja en dirección a la costa y las aguas menos profundas, puede alcanzar más de 700 k.p.h. de velocidad, tan rápido como un avión jet. Para cuando llega a la costa, un maremoto puede adquirir 50 metros de altura. Al golpear tierra firme puede arrastrar edificios y vegetación con una fuerza increíble.
Tsunamis históricos:A partir de 1596 Japón ha sido víctima en 15 ocasiones de los tsunamis. El de 1896, llamado del centenario, causó la muerte de 27,122 personas. El tsunami que se produjo por la explosión del volcán Krakatoa, con olas de 40 metros de altura, devastó las costas de Java y Sumatra, matando a más de 30 mil personas. Los tsunamis que se produjeron por la explosión del Volcán Krakatoa en las Indias Orientales, en 1883, y cuyas olas que recorrieron el mundo fueron captados hasta por los mareógrafos del Canal de la Mancha. Hawaii fue víctima de estos tsunamis u ondas de marea en 1946 y 1957, por efectos de terremotos en la Fosa de las islas Aleutianas, distante más de 3,200
kms. de este archipiélago. En aquella triste ocasión, la bahía de Kawela se hundió y fallecieron 159 personas.
El maremoto del Japón: hace poco, en Japón hubo un terremoto de 8.9 grados en la escalera de Richter. Este terremoto produzco un devastador terremoto. En este maremoto muchos edificios quedaron destruidos, mucha gente muerta(más de 10.000), gente desaparecida y habitantes sin lugares donde refugiarse.
-Aquí hay un video de cómo el tsunami golpeo toda lo zona nord oeste del Japón y de la fuerza que tenia:
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