The Cause Of The Mexico Earthquake

The loma prieta earthquake was one of the strongest earthquakes ever recorded ed with a magnitude of 8.9 on the richter scale.Since many forecasts had been presented for the region near Loma Prieta, seismologists were not taken by surprise by the October 1989 event.between

California’s unique geography as a state makes it a very appealing place to call home. From the odd east to west transverse San Gabriel mountain ranges of the Los Angeles Basin, to the bumpy coastal ranges of the Bay Area, any person can find a compatible topographic terrain to their liking. California may seem to be the perfect place to live with its ideal climate and extensive geographic features. However, due to California’s location over the shifting continental plates, coupled with its enormous and also multiple faults, at any time this great state can fall victim to a seismic disaster. After examining evidence from both Rong-Gong Lin’s II Los Angeles Times article of April 18, 2016 and the NOVA videos Killer Quake ( 2006), Earthquake (2007), as well as Geologic Journey II – Episode 3 (The Pacific Rim: Americas) – Part 3 (San Francisco) and The Great San Francisco Earthquake (American Experience ~ 2005), one can take a comparative account of the three major earthquakes of California’s past. Although each earthquake was very devastating on is own; the Great Quake 0f 1906, the Loma Prieta quake of 1989, and the NorthRidge quake of 1994 each amounted to an extensive forfeiture of property and life. Each of these earthquakes created much suffering and loss. It is imperative for each citizen of this great state to understand the damage that a California quake can actually do and be prepared; for the threat of one always looms.

The earthquake was located on the San Andreas fault which is a seismic zone between two of the earth’s tectonic plates. Seismic events which occur is caused as a result of the earth’s tectonic plates moving against each other and this can cause huge earthquakes and volcanoes (“Young”). The transform boundary passes through California and this is where the Pacific and North American plates move past each other without colliding. The event in which this occurred was the San Andreas fault (“Young”). When the plates move past each other and the resistance builds up, this causes an earthquake like the 1906 San Francisco earthquake. This earthquake caused a separation and displacement in the landscape which was seen over several kilometers

On August 24, 2014 a magnitude 6.0 earthquake occurred in and around the city of Napa, CA. The earthquake killed one person and injured over 150 people. And these people were treated at Queen of the Valley Medical Center in Napa [1]. More and more earthquakes occurred on this earth. So this grasps people’s attention.

The first major earthquake in this series was in December 1811 where the center of the earthquake was said to be started in northeast Arkansas; the people of Arkansas were the first to be shake. How did all this start? Earthquakes start when rock beneath the earth’s surface shifts in a swift and sudden way. I believe we see the earth changing overtime, but its overtime where as an earthquake is not. An earthquake is under the surface and we only see the effects of one. How do we know the New Madrid Earthquake occurred? It’s a tough question, but there’s enough documentation at our fingertips to answer the question. Many of the people that lived during the earthquake shared their experience, Crist wasn’t the only one. And that’s how we can say it’s

The 1906 San Francisco Earthquake tectonic setting was in the outermost shell of earth known as the crust this is composed of rigid plates that have been moving for hundreds of millions of years. Two of these moving plates meet in western California; the boundary between them is a zone of faults, the principal one being the San Andreas fault. The horizontal sliding of the Pacific Plate relative to the North American Plate, causes earthquakes along the San Andreas fault and similar plates near the region. The San Andreas fault is a transform plate boundary, accommodating horizontal relative motions (usgs.gov).

The tectonic setting for the 1906 San Francisco Earthquake was in the outermost shell of earth consisting of rigid plates that have been moving for hundreds of millions of years. Two of these moving plates meet in western California; the boundary between them is a zone of faults, the principal one being the San Andreas fault. The Pacific Plate (on the west) slides horizontally northwestward relative to the North American Plate (on the east), causing earthquakes along the San Andreas and associated faults. The San Andreas fault is a transform plate boundary, accommodating horizontal relative motions (usgs.gov).

According to the court clerk of the U.S. District Court of San Francisco, the earthquake lasted around a minute, however that minute was enough to inflict one of the most devastating disasters in United States history. The earthquake was felt from Oregon to Las Angeles as well as Nevada with the epicenter occurring 2 miles away from San Francisco in the Pacific Ocean. The quake resulted in water mains and gas lines breakages, and the fires raged unchecked which spread to over 500 blocks in San Francisco. Although the earthquake of 1906 is known as the San Francisco earthquake, the cities of Santo Rosa and San Jose were affected as well and lost much of their infrastructure.

What did the people of San Francisco suffer after the earthquake of 1906? In order to answer this question, we need to know what the San Francisco earthquake was. The San Francisco earthquake happened in 1906 with a magnitude of 7.8 and caused a fire that burned for 7 days. This was the biggest recorded earthquake in San-Francisco. The foreshock started at 5:12am and 25 seconds later the earthquake started that lasted 40 to 60 seconds, with most San-Franciscans asleep in rooms, they became trapped with only their hope to save them. The earthquake and fire of San-Francisco in 1906 will go down as one of the worst earthquakes in the United States’ history. It’s after affects can still be felt in the California area.

The 1906 disaster, a major earthquake estimated at between 7.8 and 8.3 magnitude. Haiti’s was a 7.0 in 2010.On

Arch C. Johnston and Eugene S. Schweig researched the New Madrid seismic activities of 1811-1812 and concluded that: The first earthquake was likely caused by slippage along a fault within the Blytheville arch and along the Bootheel fault. The length of the two reactivated fault segments was around 140 kilometers (deBoer & Sanders, n.d., p. 117-119). Johnston and Schweig believe the second earthquake was likely due to the breakup of the New Madrid fault that runs northeast to southwest, close to New Madrid. The slippage was estimated to be about 8 meters (deBoer & Sanders, n.d., p. 117-119) They believe the third earthquake was likely due to the rupturing of the Reelfoot fault, where the slippage was as much as 10 meters (deBoer & Sanders,

Despite the damage done by the earthquake, the people's biggest enemy was that of the government. The government of Mexico at the time was run by the (PRI) or Institutional Revolutionary Party, unfortunately for its citizens however this party was not interested in picking up the pieces of the community or helping rebuild. Instead they were focused on advancing their own means, this became clear when the military was authorized to help “Friends” of the party and ignore those who might be seen as dissidents. When one hears the term party friends images of the Soviet Union or China come to mind, however while not as dramatic as the Soviets that is indeed what was happening in Mexico at the time. With the Institutional Revolutionary Party’s reputation still stained from the events of the Tlatelolco massacre, the government's failure to assist its people with even the most basic forms of aid did not bode well for the parties

could possibly be a fore shock for a bigger one. It is also stated that the “Ring of fire” is

This earthquake occurred on July 27th, 1976 northern eastern part of China in Tangshan. The earthquake had a magnitude of 7.5, but there was a major aftershock 15 hours later. The actual number of people dead was never really confirmed, but people say that over 244,000 people were killed.

     Most of the worst earthquakes are associated with changes in the shape of the Earth's outermost shell, particularly the crust. These so called tectonic earthquakes are generated by the rapid release of strain energy that is stored within the rocks of the crust, which on continents is about 22 miles thick. A small proportion of earthquakes are associated with human activity. Dynamite or atomic explosions, for example, can sometimes cause mild quakes. The injection of liquid wastes deep into the Earth and the pressures