Preview

Essay On San Andreas Fault

Good Essays
Open Document
Open Document
513 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Essay On San Andreas Fault
The San Andreas Fault is a fault that goes about 800 miles through California. The fault is named after the San Andreas Lake which is a lake that formed in the middle of the Fault. A fault is a break in the earth's surface where two tectonic plates meet. The San Andreas Fault forms the boundary between the Pacific Plate and the North American Plate. The San Andreas
Fault is the most famous fault in the world. It is about ten miles deep.

The San Andreas Fault caused the 1906 San Francisco Earthquake. It is a magnitude 7.8 earthquake that measures XI on the Mercalli scale. The earthquake killed over 3,000 people, and about 80% of San Francisco was destroyed. The San Andreas Fault moves just over an inch a year, a foot each decade. The San Andreas
…show more content…
For many years, The San Andreas Fault has been building up a large amount of pressure, and when it builds up too much pressure it will quickly release it making the North American Plate and The Pacific Plate slide past each other creating a large earthquake. A study from 2009 by the USGS shows that a magnitude 7.8 earthquake from the San Andreas can cause about 1,800 deaths and about 213 billion dollars in damage to California’s west coast.

Large earthquakes that have been caused by the San Andreas are: The 1857 Fort Tejon
Earthquake which was a magnitude 7.9, the 1906 San Francisco Earthquake which was a magnitude 7.8, the 1957 San Francisco Earthquake which was a magnitude 5.7, the 2004
Parkfield Earthquake that was a magnitude 6.0 and the 1989 Loma Prieta Earthquake which was a magnitude 6.9, this earthquake postponed the Baseball 1989 world series.The San Andreas
Fault runs through many populated areas like San Bernardino or Wrightwood. It is easy to see how the fault moves by looking at how fences that are pulled apart, cracks in sidewalks and many other deformations in the ground near the San Andreas Fault. Lakes and streams along

You May Also Find These Documents Helpful

  • Powerful Essays

    FXT2 Task3

    • 1454 Words
    • 7 Pages

    Type of event, training, or exercise: (actual event, table top, functional or full-scale exercise, pre-identified planned event, training, seminar, workshop, drill, game, etc.)…

    • 1454 Words
    • 7 Pages
    Powerful Essays
  • Good Essays

    On April 18, 1906 at 5:12 a.m. an 8.0 magnitude earthquake, with its epicenter just offshore of San Francisco, struck, lasting around one minute. Just weeks before this earthquake, San Francisco was a busy city full of excitement and everyday activity, not knowing…

    • 769 Words
    • 4 Pages
    Good Essays
  • Good Essays

    The great San Francisco earthquake of 1906 was a powerful earthquake that shook mainly the city of San Francisco (USA) the morning of April 18, 1906. The earthquake was of magnitude between 7.9 and 8.6 degrees Mw1 and its epicenter was according to the experts of the United States Geological Survey, on the coast of Daly City and southwest of San Francisco.…

    • 496 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    Paige Loma Prieta Report

    • 546 Words
    • 2 Pages

    The 1989 Loma Prieta earthquake was one of the biggest earthquakes California has ever had and people are still talking about it today. I have heard a lot about the earthquake and I know that it occurred on October 17, 1989 at 5:04pm and that it lasted 15 seconds. The earthquake was 6.9 on the Richter scale and was caused by a slip along the San Andreas Fault. People felt the earthquake for miles, from north of San Francisco to far below Santa Cruz. The earthquake killed 63 people, injured 3757 people, left 10,000 people homeless and caused over $6 billion dollars of damage. It was a big one!!…

    • 546 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    1960 Chile Earthquake

    • 1173 Words
    • 5 Pages

    The largest earthquake recorded in the 20th century is the 1960 Valdivia earthquake, also known as the Great Chilean earthquake which occurred on May 22, 1960 and hit approximately 100 miles off the coast of Chile, which is parallel to the city of Valdivia. With a rate of 9.5 on the moment magnitude scale, this earthquake occurred in the afternoon and lasted approximately 2 minutes (brit). After just thirty minutes of the major earthquake, a foreshock shook the area near the towns of Valdivia and Peurta Montt (kids). The four foreshocks that followed had a magnitude of greater than 7.0. The largest earthquake had a magnitude of 7.9 and caused a large amount of damage to the Concepcion area. The devastating earthquake triggered a tsunami just off the coast of central Chile, which affected the entire Pacific Basin (usgs). After Chile, the tsunami traveled hundreds of miles and caused destruction all around the Pacific. The places that experienced the most impact was Hawaii and Japan (2010). The earthquake set off waves which bounced back and forth across the Pacific Ocean for a week (history). The Great Chilean earthquake along with the large tsunamis, has caused substantial damage to the country, it resulted to loss of life and homes, and presented long-term effects. Although the massive destruction had an overall negative…

    • 1173 Words
    • 5 Pages
    Good Essays
  • Better Essays

    The New Madrid Fault Zone

    • 2168 Words
    • 9 Pages

    New Madrid, MO was founded in 1789 with about 400 hundred residents and the 1811, 1812 earthquakes were named after New Madrid as this was the only place with a sizeable population at the time. The New Madrid Fault System extends approximately 150 miles southward crossing five state lines. West coast fault zones are called transform faults in contrast, the New Madrid fault is called an intraplate zone. This means that there is a weak spot in the middle of the North American Plate with a series of faults in the Earth’s crust and is called the Reelfoot Rift, named after Reelfoot Lake in Tennessee, that was formed during the quake, (The Encyclopedia of Arkansas History & Culture).…

    • 2168 Words
    • 9 Pages
    Better Essays
  • Good Essays

    Plate Tectonic Assignment

    • 568 Words
    • 3 Pages

    This a map showing the distribution of earthquakes from 1990 to 1996. A similar map is on page 54 in your text.…

    • 568 Words
    • 3 Pages
    Good Essays
  • Good Essays

    hsm 220 week 9

    • 282 Words
    • 2 Pages

    California is bordered by Oregon to the north, Nevada to the east, Arizona to the southeast, and the Mexican State of Baja California to the south. California's diverse geography ranges from the Pacific Coast in the west, to the Sierra Nevada in the east – from the Redwood–Douglas-fir forests of the northwest, to the Mojave Desert areas in the southeast. The center of the state is dominated by the Central Valley, a major agricultural area. California contains both the highest and lowest points in the contiguous United States (Mount Whitney and Death Valley), and has the 3rd longest coastline of all states (after Alaska and Florida). Earthquakes are a common occurrence because of the state's location along the Pacific Ring of Fire: about 37,000 are recorded annually.[13]…

    • 282 Words
    • 2 Pages
    Good Essays
  • Good Essays

    New Madrid Earthquake

    • 663 Words
    • 3 Pages

    Just after 2 o’clock AM of December 16, 1811, the Mississippi River valley was hit by an earthquake so strong that it awakened people in cities as distant at Pittsburgh, Pennsylvania, and Norfolk, Virginia.(Page) This shock started what must have been the most frightening sequence of earthquakes ever to occur in the United States. The strong shaking continued through March 1812 and aftershocks strong enough to be felt occurred through the year 1817. The initial earthquake of December 16 was followed by two other principal shocks, one on January 23, 1812, and the other on February 7, 1812. (Nuttli) No other earthquakes have lasted so long or produced so much evidence of damage as the New Madrid earthquakes. Three of the earthquakes are on the list of America’s top earthquakes: the first one on December 16, 1811, a magnitude of 8.1 on the Richter scale; the second on January 23, 1812, at 7.8; and the third on February 7, 1812, at as much as 8.(Page)…

    • 663 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Today, over 1000 seismographs measure minute shaking over California, much of which goes unnoticed by human detection. This array of seismographs helped to develop a subsurface model of fault systems and an understanding of which faults potentially hold higher strain. This helps us understand which faults would be more likely to produce strong earthquakes, the relative probability of earthquake occurrence, and expected shaking. Unfortunately, the occurrence of earthquake detection is probabilistic in nature and therefore is limited to long-term predictions. This is similar to the 100-year flood. Scientists determine a 100-year flood based on historical records of flooding, but this doesn't stop two 100-year floods from happening back to back and then none for several hundred…

    • 657 Words
    • 3 Pages
    Good Essays
  • Good Essays

    There are also secondary effects that can be a disastrous to Los Angeles like faulting and ground ruptures, aftershocks, and fires. Earthquakes originate from the sudden movement of faults. As the faults move, in any direction, the blocks of rock on both sides of the fault will rub against each other and that cause the vibrations. The more the faults move, the larger the amount and intensity of vibrations in the earthquake will be. The reason that Los Angeles is prone to an earthquake at any given time is because the center of the city is located directly above a group of thrust faults. These faults occur at convergent boundaries. It is also located closely the fault known as the San Andreas Fault, which has produced some of the largest earthquakes the world has ever seen. Thrust faults can give way to immense pressure, which will cause one slab of rock to push against another slab of rock and ultimately it will push the other plate upward. Earthquakes have devastated Los Angeles in the past. The largest quake in modern history was the Fort Tejon Earthquake in 1857. It measured 8.0 on the Richter scale. Southern California was scarcely populated, so…

    • 746 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Schulz, Sandra S., and Robert E. Wallace. "The San Andreas Fault." The San Andreas Fault. USGS, 24 June 1997. Web. 15 Nov. 2012. <http://pubs.usgs.gov/gip/earthq3/safaultgip.html>.…

    • 1766 Words
    • 8 Pages
    Powerful Essays
  • Good Essays

    Earthquakes; Not only does the San Andreas Fault, marking the conservative margin between the Pacific and North American plates, cross Southern California, but LA was built across a myriad of transform faults. These include the Santa Monica fault, the San Fernando fault, and the Northridge/Santa Barbara fault.…

    • 372 Words
    • 2 Pages
    Good Essays
  • Best Essays

    Plate Tectonics Paper

    • 1866 Words
    • 8 Pages

    Britt, R. R. (2005). Tiny shifts confirm quake risk in central U.S. MSNBC News – Technology and Science. Retrieved April 25, 2010 from http://www.msnbc.msn.com/id/8317517/ns/technology_and_science-science//…

    • 1866 Words
    • 8 Pages
    Best Essays
  • Good Essays

    There then becomes massive pressure on the fault lines resulting in the fault lines giving way, and plates move over, against or apart from each other.There is then a earthquake at this point. In the form of seismic waves (like water ripples) the escaping energy radiates outward from the fault in every directions. The seismic waves shake the earth as they move through it. When the waves reach the earth’s surface, it shakes everything on it causing houses to fall and roads to crack.…

    • 514 Words
    • 3 Pages
    Good Essays