Earthquake Vs Rat Island 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

Over more than 50 decades there has been multiple earthquakes that have been caused by the activity that takes place beneath and above the surface of the earth. For every earthquake there are various effects and consequences, these are generally not preventable but teachable moments. As we study and explore landforms we learn and better understand how today 's structures came about, what took place decades ago and where do we go from here. Thanks to the technology and inquiring minds we are able to study past events like the 1906 San Francisco earthquake and the 1964 Alaska earthquake. In comparing these two events we can get an overview of what happened and better prepare ourselves for something like that in the future.

Have you ever been in a deadly earthquake? In 2013, the people of the Philippines experienced one. A 7.1 magnitude earthquake that affected around 43,000 people with 2,211 aftershocks that ended up killing a total of 185 people. Earthquakes are known as one of the most dangerous natural disasters. This horrific event happened October 15th, 2013. The earthquake hit hardest in the central Philippines, it was reported to be caused by the East Bohol Fault. People act in a response to a natural disaster by gathering resources, spreading word, and government aid.

On April 18, 1906, in San Francisco, California there was an earthquake that was a major geological disaster that affected people in many ways. According to www.History.com, San Francisco had a population of around 400,000, and 3,000 people. The earthquake destroyed over 28,000 buildings and around 250,000 people became homeless. The damage costs were $500 in 1906. The magnitude of the earthquake was estimated to be a 7.8, but only lasted for 1 minute. The earthquake started many fires that burned for days and destroyed around 500 city blocks. The earthquake could be felt from Los Angeles to southern Oregon, and in central Nevada. This earthquake was caused by the transform plate boundary from the pacific and North American plates. The 2 plates rubbed against each other creating the earthquake. (decodedscience.org).

There are many dangers to an earthquake. Earthquakes can cause damage to cities and many people end up injured or dead. The shaking of the ground can cause mudslides and landslides.Earthquakes can also cause terrible tsunamis.Earthquakes can occur on convergent, divergent, and transform boundaries. They can also can occur on subduction zones. In this case, the earthquake occurred on a subduction zone. Subduction is the process of which the denser plate sinks under the less dense

(May 22, 1960, Valdivia, Chile, Magnitude 9.2) The largest earthquake ever recorded was in Chile in 1960 and it was recorded at a magnitude 9.2. It’s said that 1,655 people were found dead and over 3,000 were injured. Two million citizens were left homeless after this natural disaster. ( March 27, 1964, Prince William sound,Alaska,Magnitude 9.2) The Gulf of Alaska was devastated by the Prince William Sound earthquake that of the 131 people killed during the earthquake, 119 died in the tsunami. Most were killed by the tsunamis triggered by underwater landslides, not by the earthquake-induced tsunami. (December 26, 2004, Northern Sumatra Indian) The giant earthquake of 2004 in Sumatra ruptured the longest fault length that has ever been recorded

The Largest Earthquake Was In Valdivia, Chile In May, 1960. It Had A Magnitude Of 9.5. It Started Beneath The Pacific Ocean. The Motions Of This Earthquake Destroyed Thousands Of Land Structures. Most Damage And Deaths Were From The Tsunamis Formed By The Quake. They Pushed Buildings Away From Their General Location!!!

To begin with, what exactly caused both of these quakes? Well, a cycle is happening above as well as beneath the surface. This cycle involves the movement of tectonic plates. Both of these earthquakes were caused by the movement of two very different plates. The Chilean earthquake was caused by the Nazca Plate sub-ducting under the South American plate. This means these two plates collided along the plate boundaries, which made one slip underneath the other. The bottom plate slowly pushed the top plate, and was then released causing the earthquake. The magnitude for the quake was of 9.5, being the largest earthquake ever recorded. The Haiti quake was caused by a lateral strike slip motion. There was a separation in the boundary region of the Caribbean Plate and North American Plate. As the plates glided past one another, strain and compression was building along the fault. There was a release of energy that resulted in ground shaking. The Haiti earthquake had a magnitude of 7.0.

There are many historical disasters associated with past earthquakes. The greatest Southern California earthquake in modern history was the Fort Tejon Earthquake on January 9, 1857 that measured 8.0 on the Richter Scale. Damage was not nearly as serious as it would be today, mostly because Southern California was sparsely populated. The effects of the quake were quite dramatic, even frightening. If the Fort Tejon shock were to happen today, the damage would easily run into billions of dollars, and the loss of life would be substantial (County of Los Angeles). There were also earthquakes in China, Shansi on January 23, 1556 with damage of about 270 miles away and 830,000 in deaths, Sumatra, Indonesia on December 26, 2004 with 227,898 in deaths from the earthquake and tsunami, and in January 12, 2010 in Haiti with 222,570 deaths and

On the day of December 26 of 2004 there was an earthquake off the coast of Sumatra, Indonesia that caused massive Waves raging havoc and killing of an estimated 230,000 people the earthquake magnitude was a 9.3 this magnitude was as close as the earthquake chili incident in 1960 except this event had happened at sea instead of happening on land if this incident had occurred on land the devastation would have been on a larger scale

The Loma Prieta earthquake of 1989 was the first major earthquake occurring on that fault since the previous major earthquake which was The Great San Francisco Earthquake of 1909. The 1909 Great San Francisco Earthquake caused significantly more deaths which generated up to an estimated three thousand, and caused more damage mostly from the fires that occurred in the aftermath. The 1909 earthquake occurred on the same fault however it had a much longer section of the fault slip and was reportedly a much larger earthquake in comparison because of that. Which is why many researchers believe that although the Loma Prieta was a very bad earthquake it was only a precursor for a larger one to come. There have been some fairly large slips in between

     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

The Christchurch earthquake with a magnitude of 6.3 (Ritcher scale) hit New Zealand’s second largest city, Christchurch, on February 22, 2011 (Fig1).

The 2010 Canterbury Earthquake happened near Christchurch, New Zealand on the South Island on September 4, 2010 at 4:35 a.m. (see figure 1) (Te Ara Encyclopedia of New Zealand, n.d.). The focus of the earthquake was at 5 km or 3.1 miles below the surface (United States Geological Survey, n.d.). It had a 7.1 magnitude on the Richter Scale and it caused widespread damage in the city. Two people were injured and one person died from a heart attack, but it was not known if it was related to the earthquake. There were very few causalities because most people were home at the time of the earthquake. It was caused by movement along a previously unknown fault in the Canterbury Plains. The fault appeared about 50 miles from the boundary between the Australian and Pacific tectonic plates (Te Ara Encyclopedia of New Zealand, n.d.).

I believe that earthquakes are way more dangerous than volcanoes. I believe that they are more dangerous than volcanoes because they can affect any city, state, or country at any time anywhere. The aftermath of the earthquakes are more destructive to an area, and cost way more for the government to clean up. For example, the earthquake that happened in Haiti several years ago devastated the country a lot. The devastating earthquake was a magnitude of 7, and left 230,000 dead, as well as over 300,000 people injured. Most of the country went into poverty right after this, and the Red Cross immediately got involved. The earthquake also damaged over 250,000 residences and 30,000 commercial buildings, as well as 15,000 primary schools and 1,500