This type of devastation happened on March 11 2011 in Japan when a very powerful tsunami ruined the land, and on October 17 1989 when California was hit by huge earthquake named Loma Prieta. This essay will compare and contrast these two world shaking events and give some research about the two events as well. Maybe you will learn about some interesting facts about the two. A earthquake is described as a sudden and violent shaking of the ground, resulting from the movement within the earth’s crust or from volcanic action. It sometimes causes great destruction.
This is an analysis on what is known to be the largest earthquake and biggest tsunami ever to hit Japan on March 11, 2011. The earthquake and tsunami Japans coast lies in ruins after the earthquake hit followed by the tsunami picking up everything in its path like cars, houses, and warehouses. Seismometers, strain gages, and title gages records the disaster. P-waves travel at four miles a second and within seconds warnings flash across the country. The S-waves shake the ground making earthquakes so damaging and the reactor core is shut down (Kerger, 2011.
Some earthquakes, how-ever, are not accompanied by these noises. At the time of the terrible shock which destroyed Riobamba in Ecuador on February 4, 1797, a complete silence reigned. Many changes are produced on the earth’s surface by earth-quakes. They cause landslips and cracks in the earth, which will sometimes alter the drainage system of a country. They are fre-quently accompanied by great sea waves, which will often sweep rocks and sand great distances inland.
Other scientists say that the repositioning of the world’s landmasses was disastrous for dinosaurs. As continents heaved upward, ocean currents were redirected and global sea levels fell. The Interior Seaway, which once divided North America in half, simply drained away as the Colorado Plateau rose thousands of feet. Though all these theories are well supported and make a lot of since, I think the continental drift theory is the better of them. First, an asteroid explosion so big to wipe out all the dinosaurs most likely would have made a bigger impact on the Earth.
Another problem is trash lifted by the tsunami waters from anywhere and everywhere, including debris from the earthquake disaster, has also been released and swept out to the ocean. The ocean’s waves and currents distribute the trash, along with the nuclear waste, throughout the waters, polluting the environment, near and far. Along with the physical devastation of getting infrastructure usable again, Japan is faced with environmental issues and daunting health concerns that must be improved, if not solved. The Fukushima Daiichi nuclear power plant is one of the largest and oldest plants in the world existing for over 40 years now. It is now facing great threat due to the recent natural disasters.
The December 26, 2004 Indian Ocean tsunami was caused by an earthquake that is thought to have had the energy of 23,000 Hiroshima-type atomic bombs. The epicenter of the 9.0 magnitude quake was under the Indian Ocean near the west coast of the Indonesian island of Sumatra. The violent movement of sections of the Earth’s crusts known as tectonic plates displaced an enormous amount of water, sending powerful shock waves in every direction. The tectonic plates in this area had been pushing against each other, building pressure for thousands of years – they continue to do so and will likely cause underwater earthquakes and tsunamis in the future. The shifting of the earth’s plates in the Indian Ocean on Dec. 26, 2004 caused a rupture more than 600 miles long, displacing the seafloor above the rupture by perhaps 10 yards horizontally and several yards vertically.
Now drop 3 or 4 of these around and carpet bomb the city and BANG! You have mass destruction. By why aren't these bombs out lawed as well? They are mass destruction too aren't they? They just took out Auckland City.
The actual speed of P and S seismic waves depends on the density and elastic properties of the rocks and soil through which they pass. In most earthquakes, the P waves are felt first. The effect is similar to a sonic boom that bumps and rattles windows. Some seconds later, the S waves arrive with their up-and-down and side-to-side motion, shaking the ground surface vertically and horizontally. This is the wave motion that is so damaging to structures.
* why a volcano erupts, and what happens afterwards; * what happens after a loved one's death. The below example shows a cause essay, one that would explain how and why an event happened. If this cause essay were about a volcanic eruption, the thesis statement might go something like:"Pressure and heat built up beneath the earth's surface; the effect of this was an enormous volcanic eruption." The next example shows an effect essay, one that would explain all the effects that happened after a specific event, like a volcanic eruption. If this effect essay were about a volcanic eruption again, the thesis statment might go something like: "The eruption caused many terrible things to happen; it destroyed homes, forests, and polluted the atmosphere."