Tsunamis are waves, or series of waves, created by a disturbance in the ocean. Most of the time this disturbance is by an earthquake but can be from meteorites, landslides, or even explosions. They are sometimes known as tidal waves but this is a misnomer because tsunamis have nothing to do with tides. While tsunamis are feared particularly in light of the December 26th tsunami, the physics behind them is fascinating. One the largest tsunamis in recent history was the Cascadia tsunami in 1700.
That means that you won’t be able to go to that beach for a while until everything calms down, and the tsunami most likely wiped out all of the shops and places that you like to hang out, so you can’t go there anymore. More than anything, though, earthquakes cause death. If there is an earthquake in your town, or the town of a loved one, they could die or get seriously injured and then that will affect you and your feelings. Chile Earthquake The world’s largest recorded earthquake since the 1900’s is the earthquake in Chile in 1960. The earthquake occurred in Chile on May 22, 1960 at 7:11 p.m. and the aftershocks lasted through November 1.The earthquake occurred approximately 100 miles off the coast of Chile, parallel to the city of Valdiva; (Southern Chile, Valdiva-Puerto Montt area) This earthquake killed many people and also caused a major tsunami by the time it had finished.
A Tsunami in Santa Cruz Out of all the natural disasters that we talk about in class, the most deadly would have to be a Tsunami. Compared to earthquakes, Tsunamis have cause more deaths since 1945. A Tsunami is likely to strike anywhere on the west coast, including Santa Cruz in California – United States – North America – 36:58:24N 122:02:09W. A Tsunami is a giant “wave” of water that is caused by a sudden shift in the sea floor. The wave is a result of the water attempting to regain its equilibrium, which is driven by gravity.
Earthquakes can be predictable, and unpredictable. They can be harmless, or your worst nightmare. The consequences of natural disasters are unimaginable and it is impossible to fully comprehend the thoughts running through the heads of those left homeless or family less. On March 11, 2011, Japan’s coast was hit by a tsunami, its results affecting almost everywhere in the world. “A tsunami (pronounced soo-NAHM-ee) is a series of huge waves that occur as the result of a violent underwater disturbance, such as an earthquake or volcanic eruption.
Volcanoes: When violent volcanic eruptions happen, impulsive disturbances are susceptible of generating an Earthquake or a Tsunami. Tsunamis generated by Volcanoes are infrequently. Meteorite impact: Asteroids and meteors colliding with earth are really rare but the “scientists realize that if these celestial bodies should strike the ocean, a large volume of water would undoubtedly be displaced to cause a tsunami.” Meteor impact is the less common factor that could generate a tsunami. Tsunami generated by meteoric impacts is very rare. Landslides: Icefalls, rock falls and underwater slumps or landslides could move water that could cause a tsunami.
Earthquakes Geologists today define an earthquake as the shaking and the trembling of the earth’s surface, known as the ground. Earthquakes are caused by the sudden release of energy, usually as a result of faulting which involves displacements of rocks along fraction. All of this energy has been building up for a long period of time and then suddenly just blows. Most earthquakes result from energy being released along plate boundaries and as such “earthquakes are manifestation of earth’s dynamic nature to the fact that earth is an internally active planet” (Hough). After an earthquake’s continuing adjustments along a fault may then generate a series of earthquakes.
Nothing will stand a chance in the path of a tsunami as it's huge wave of destruction takes its course. Another disater would be a landslide which is often more desturctive than the earthquake itself. In Alaska, Turnagain Heights, an entire residential area was destroyed by a shock induced landslide. Many seimologists believe that earthquakes do not kill people, buildings do. They feel that during an earthquake the destruction of buildings and man made structures crashing down cause most of the deaths.
The Oregon Coast in located on a subduction zone, which makes it very susceptible to major earthquakes and tsunamis. With the Cascadia subduction zone running along he West Coast the threat of a major tsunami is very real. The scenario mentioned above was based on the rupture located along the Cascadia fault line. This fault system runs from Northern California to Vancouver Island about 700 miles off the shore (FOX5). Scientists use to believe that the San Andreas Fault was where a large earthquake tsunami would originate, but recently their attention has shifted to the Cascadia subduction zone which is now said to be much more dangerous than previously thought (FOX5).
If the mountain is very tall, then there is a greater chance that it was formed from past eruptions. When the lava cools, it makes the mountain bigger and higher. Depending on the type of volcano, layers can differ in lava/ash content. (Plu... ... middle of paper ... ...p; Ziehm 6 Mt.Vesuvius is just one of several active volcanoes throughout the world. They have wiped out populations in the past and have the potential to decimate more in the future.
The ring of fire is filled while volcanoes both active and inactive. Some active volcanoes include the popular Mount Fuji in Japan, Kilauea which is one of the most active volcanoes in the world and Mount St. Helens, located in Washington State, here in the U.S. The ring it is also a hot spot for tsunamis. One of the more notable tsunamis recently include the Indian Ocean tsunami that really devastated Indonesia. An earthquake in the ocean triggered a massive tsunami which was more than 30 meters in height.