An earthquake is a shaking of a part of the earth’s surface, often causing great damage. (merriam webster.com) Earthquakes kill approximately 8,000 people each year. An average earthquake only lasts about one minute. (Randomhistory.com) Earthquakes are important and relevant because of the lives they take and the damage they cause.
On 1960, May 22 the strongest earthquake hit off the southern coast of Chile. At a magnitude of 9.5 it left approximately 2 million people homeless. (Britannica.com) About 1,655 Chilean people were killed. (kids-fun-science.com) The great Chilean earthquake caused $550 million in damage in southern Chile. (Earthquake.usgs.gov) This earthquake was caused by the South American and Nazca plates colliding.(People.uwec.edu) The Chilean earthquake was a huge disaster and everyone hopes nothing like this will happen again.
Earthquakes are a huge threat to
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Some of it dives into the earth’s interior others thrust upwards this leads to an earthquake. Huge movements cause earth to release lots of energy. Some of the energy takes the form of shock waves, called seismic waves. Shocks radiate from the center of the earthquake. Seismic waves can cause violent shaking. There are two different types of Seismic waves: Body and Surface waves. Body waves you won’t feel. Surface waves you’ll feel rolling or swaying motion. (scholastic.com) What causes an earthquake may play a role in what type of earthquake it is. There are four different types of earthquakes. The first one is when two tectonic plates push up together creating a mountain. The second one is when one tectonic plate goes underneath the other one. The third is when both plates pull apart from each other. The last one is when two tectonic plates push against each other than ultimately side swipe. (Winchester 16-17) All these earthquakes can vary in size and there are ways to measure
But people have similar and different views and opinions on this earthquake, and that is seen “Comprehending the Calamity” by Emma Burke and in Fred Hewitt’s “Horrific Wreck of the City”. In 1906, the San Francisco earthquake struck a little after five in the morning. The earthquake, at a magnitude of 7.8, shook and destroyed buildings. At least 250,000 people were homeless, and many camped out in a park. But that wasn't all.
Rocks are heated underneath the crust then pushed out through a volcano or the oceanic plate. The rock substance that becomes the crust will deposit back underneath the crust. All of the process can be credited to the dynamic nature of Earth.
- Crust - cool, lightweight, brittle, which floats on top of mantle. It is the outer layer of earth. Tectonic processes reshape continents and also cause earthquakes - Tectonic plates- plates caused by convection currents in the mantle that causes earthquakes. - Ocean basins form where continents crack and pull apart. - Magma – is molten rock
The two plates that moved were the North American tectonic plate and the Pacific tectonic plate. The plates moved about 15 feet, this is huge because the average movement of tectonic plates during an earthquake is only 2 inches. The earthquake only lasted a minute but it quickly destroyed the city. The earthquake
The impact of the New Madrid earthquake, although did not result in a lot of fatalities or destruction, left lasting effects on the land and those involved. Many did not know what to do, and it caused terror and fear in those who were ill prepared for the earthquake. It remains the largest earthquake in North America, and will always be remembered in the hearts of the Americans.
Although the report released by Lawson provided insight about earthquake occurrence, it cannot help scientists and geologists to accurately predict when the next earthquake will occur. However, with advanced monitoring systems and computing power may help in better preparation of future earthquakes. The 1906 San Francisco earthquake brought geologists and scientists together and led to an understanding of earthquakes; how they occur, why they occur and how the world can prevent and manage such disasters in
The San Francisco earthquake of 1906 had a magnitude of 7.9. This devastating event killed thousands. It was a normal day, people did not prepare for this, it just happened. Despite a quick response from San Francisco's large military population, the city was devastated. The earthquake and fires killed an estimated 3,000 people and left half of the city's 400,000 residents homeless.
The Earth’s crust has several moving pieces. They are composed of a variety of igneous metamorphic and sedimentary rocks. The tectonic plates are always colliding or pulling apart, creating mountains. Earthquakes and volcanoes occur at the edge of these tectonic plates because of the impact of the plate movements are greatest there.
Recently, on January 7th 2016, there was an earthquake caused by fracking, in Oklahoma, where earthquakes are rare. This particular quake was a 4.8 on the Richter Scale, which is the highest ever recorded. It occurred in the center of the state, was felt all over. Also, within the past week, there have been more than 20 quakes all over the state. in recent years, since 2011, earthquakes have occurred more and more often.
The California earthquake of April 18, 1906 ranks as one of the most significant earthquakes of all time…. a foreshock occurred with sufficient force to be felt widely throughout the San Francisco Bay area.... Violent shocks punctuated the strong shaking which lasted some 45 to 60 seconds. The book Dragonwings says, Wood and stone and brick and the very earth became fluidlike…. The whole world had become unglued….
On April 18, 1906 an earthquake hit San Francisco for mere minutes. The earthquake registered 8.25 on the Richter scale (eyewitnesshistory). The damage from the earthquake paled in comparison to the level of destruction that followed. The quake cost 3,000 people their lives and not only rattled the residences of San Francisco, but people from Oregon to L.A and as far inland as Nevada(history.com).
How do earthquakes form? Earth quakes form when two earth blocks slide past each other. When they slip past each other it is called a fault. Earth quakes
Which 40% of the houses, farms, livestock are destroyed during Valdivia earthquakes, also they are 1,655 people dead, 3,000 injured, 2,000,000 homeless and $550 million damage. So for the Alaska earthquake, are also known as the Great Alaskan Earthquake, the Portage Earthquake and the Good Friday Earthquake. This earthquakes is a largest earthquake that happened in North America and the second most powerful earthquake recorded in history. Which the earthquakes event are killed 131 people, and 119 people are die because of tsunami while this damage are cost $311 million in 1964
These two plates push and shove each other causing small tremors throughout which can cause landslides,volcanic eruptions and once in a couple years, quakes with devastating results. The strongest earthquake recorded occurred in 1991 with a measure of 7.6 on the Richter scale. This earthquake left 4 dead and buildings as well as bridges and road were completely destroyed. If another Earthquake occurs, the coastal cities would be the most affected ones as they are closer to the plates.
The earthquake of 2010 was a 7.0 on the Richter Scale. This large earthquake caused the death of 230,000 people. This was due to poor building structure and little warning. There were too many bodies to move and so few people who were capable of moving them (due to injuries) that the bodies would just be piled up on roads and in city squares. As a result of the earthquake, a total of 10,000 children were left orphaned.