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Strategies to tackle natural and man made disaster
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The effects of the Alaskan earthquake, unfortunately are what secured its place as one of the deadliest earthquakes ever recorded. From property damages, to the massive death toll, this earthquake devastated the lives of the people of anchorage, and multiple other towns within its destructive range. Unfortunately, the effects of an earthquake do not strictly come as one configuration. The disaster comes in the form of violent shaking of the earth, tsunamis, landslides and other incidents. Because the earthquake’s focus was approximately 15.5 miles below the surface, which aided the fact it spanned over 100,000 square miles. [2] The Alaska Earthquake was caused by an oceanic plate sinking under a continental plate, otherwise known as subduction. Although the epicenter was approximately 75 miles southeast of the city, Anchorage sustained by far the most damage, as it is incomparably the most densely populated city of Alaska. The city was obliterated due to many insufficiently designed houses, structures, and base (cleared boulevards, walkways, water and sewer mains, electrical frameworks, and other man-made gear), especially in the few avalanche zones along Knik Arm. Two hundred miles southwest, a few regions close Kodiak were raised by 9.1 meters while regions such as Turnagain Arm dropped as much as 2.4 meters. [3] Tidal …show more content…
waves extremely influenced Whittier, Seward, Kodiak, and other Alaskan groups, as well as individuals and property aside from Alaska such as British Columbia, Washington, Oregon, and California. The largest wave produced by the quake was approximately 67 meters tall, recorded hitting Alaska. Tidal waves additionally brought on harm to the islands of Hawaii and Japan. Confirmation of movement specifically identified with the seismic tremor was accounted for from everywhere on the planet. [2] The total fatality count tallied to 139 people as a result of the Alaskan quake and all of its following disasters.
Fifteen people died as a result of the earthquake itself. One-hundred and six died from the subsequent tsunami hitting Alaska directly. Prince William Sound, Port Valdez endured a huge avalanche within the ocean, bringing about the deaths of 30 people. A 27-foot wave devastated the town of Chenega, massacring the small town, killing 23 people. Five people passed on from the tidal wave that reached Oregon, and 13 from the wave that impacted California. Damages were estimated around $2.29 billion in U.S. dollars at todays value.
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The 1906 San Francisco Earthquake hit the Northern California coastline. The San Andreas fault shook 296 miles of the coast causing major damage throughout San Francisco, destroying about 80% of the city. Fires broke out throughout the city that lasted for several days. This was one of the worst Earthquakes recorded in history, killing 3,000 people.("The Great 1906 San Francisco Earthquake")
Imagine if a 9.0 earthquake struck the West Coast today, resulting in a giant tsunami. Coastal towns would be washed away or completely isolated, and electricity would be lost (FOX5). There would be $70 billion in damage and people would only have 15 minutest to evacuate or move to higher ground resulting in 10,000 deaths (FOX5). This sounds like a plot for a scary movie, but this is actually a reality. The Oregon Coast in located on a subduction zone, which makes it very susceptible to major earthquakes and tsunamis. With the Cascadia subduction zone running along he West Coast the threat of a major tsunami is very real.
1906 San Francisco Earthquake Jared E. Gatchalian San Jose State University. 1906 San Francisco Earthquake The 1906 San Francisco earthquake was one of the largest earthquakes in the United States. Even though it only lasted less than a minute, the damage and aftermath of the earthquake were disastrous. These damages were not just from the earthquake, but also from other hazards that occurred because of it. It also had a huge effect on the people living in San Francisco.
TOHOKU, Japan, Friday, Mar. 11 -Yesterday, a 9.0 magnitude Earthquake struck the east of Tohoku, Japan. The epicentre of the earthquake was located approximately 72 km east of Tohoku (38.3 degrees North latitude and 142.4 degrees East longitude), or 130 km east of Sendai as shown by the X in figure 3 below. The focus of the earthquake was 24.4 km under the epicentre. The earthquake therefore caused a tsunami due to the displacing of water above the Pacific Plate. The earthquake and tsunami together have caused approximately 20,000 deaths, 6152 injuries and 2500 people missing. Approximately 90% of these deaths were by drowning. Approximately 140,000 people have been displaced and over 500,000 buildings and structures have been destroyed or damaged. The early warning system of Japan stopped many bullet trains, and many residents received texted warnings of the earthquake and tsunami on their mobile phones giving them time to evacuate. Figures 1 and 2 show exactly how destructive the tsunami caused by the Tohoku Earthquake was.
Before examining the Northridge event, understanding the naturally occurring hazard that is an earthquake will help to better understand exactly what happened and why it was such an important geological event. With four distinct layers, two layers, the crust and upper portion of the mantle, compose the skin that is the surface layer of the Earth. The crust is not a single, continuous piece. It is actually several different pieces, or plates, that come together to form the puzzle that comprises the surface of the Earth. These plates are in constant motion rubbing against one another. These areas, known as fault lines, where the plates rub up against one another have spots where one plate ”gets stuck while the rest of the plate keeps moving. When the plate has moved far enough, the edges unstick and is how most of the earthquakes around the world occur” (Wald, 2012). The energy stored from the friction of the two plate...
During the years of 1811-1812 three earthquakes occurred near the small town of New Madrid, Missouri. Based on the on the Richter scale the magnitudes of each or these earthquakes measured at a 7.0 or higher. These earthquakes were felt as far away as Boston, Hartford, and New Orleans. The damage caused by these earthquakes went as far as Cincinnati, Ohio and St.Louis Missouri. These earthquakes are known as the New Madrid Earthquakes.
The harm that came from the earthquake was harsh and most everything was destroyed. Buildings collapse, people died, and landslides occurred, trapping everyone hopelessly in the zone where the
The earthquake was caused by a strike-slip fault. A strike-slip fault is when the rupture is almost nearly vertical movement. During an earthquake, they slide past each other.
People did not know if their family, friends, or coworkers were even alive and had no way to contact them for 2 days with the power being out. (San Francisco) After the earthquake 12,000 people were left homeless and more than 11,000 homes were left destroyed. (“Snow”)
It was known as the great Alaska earthquake. On March 27, 1964, an earthquake with a magnitude of 9.2 struck the Prince William Sound region of Alaska. This earthquake is the second largest earthquake ever recorded in the world, the first as a magnitude 9.2 in Chile in 1960. In other words, this earthquake released 10 million times more energy than the atomic bomb dropped on Hiroshima Japan. Equally important, this (Abby Lautt) earthquake produced landslides and caused catastrophic damage covering an area of 130,000 square kilometers, which is the entire state of Alaska, parts of Canada and Washington. The earthquake lasted approximately four minutes with eleven substantial after shock occurring over the next 24hrs causing damages in the amount of almost $400,000 and killed 131 people.
Earthquakes happen about 20,000 times a year worldwide. They can destroy almost anything.In 2011, Japan had 9.1 magnitude earthquake, close to the highest magnitude of 9.2 in Alaska. They suffered tremendous damage from such a strong earthquake. The year before Haiti suffered from a 7.0 magnitude earthquake, still quite high compared to small tremors at magnitude 0-2. Japan recovered and rebuilt much faster than haiti did though. Haiti isn't even quite done recovering yet. The earthquakes had such different effects on the countries because of their economy, the condition of their people, and population rates.
While the early warning saved thousands of people, the Japan’s Meteorological Agency underestimated this earthquake as the subduction zone of Japan should not produce the magnitude 9.0 quake (Oskin, 2013a). The Tohoku Earthquake and its tsunami approximately killed 16 thousand people, injured 6 thousand people and around 3 thousand people were missing. Most people died from drowning. Around 300 thousand buildings, 4000 roads, 78 bridges, and many more were affected by the earthquake, tsunami, and fires from leaking oils and gas. Electricity, telecommunication, and railways were severely damaged. The debris of 25 million tons was generated and carried out to the sea by water (BBC News, 2012). The country’s authorities estimated more than 309 billion US dollars of damages. Landslides occurred in Miyagi and liquefaction in Chiba, Tokyo, Odaiba, and Urayasu (USGS, 2013). Furthermore, the tsunami destroyed protective tsunami seawalls. Approximately 217 square miles of Japan covered in water (Oskin,
Looking for Alaska is a book ,written by John Green. The main theme of the book is “Looking for the Great Perhaps.” In the first three chapters of the book, the main characters, Miles “Pudge” Halter, Chip “Colonel” Martin, and Alaska Young are introduced. Looking for Alaska is a story about a guy named Miles Halter who recently switched to a boarding in school in Alabama in order to find out who he really is as a person. At the boarding school, Miles becomes very close friends with his roommate, The Colonel, and a girl named Alaska Young. The Colonel is a very confident guy who’s pretty poor in money, but he’s rich in love and appreciation for people. Alaska is a very beautiful, yet strange girl who is fascinated with death and isn't afraid
The death toll climbs to over 10,000 and is still rising (Branigan 2). The disaster in Japan began without warning on Friday March 11, 2011 at 2:46pm with a 9.0 magnitude earthquake, the strongest ever recorded in the country (Fackler 3). A massive thirty-three foot high tsunami, generated by the earthquake, swept over lands in northern Japan, taking objects and debris with it. To make matters worse, the tsunami caused the cooling systems at several nuclear power plants to fail. The disaster in Japan was a tragic event, and it had a plethora of causes and effects.
Earthquakes belong to the class of most disastrous natural hazards. They result in unexpected and tremendous earth movements. These movements results from dissemination of an enormous amount of intense energy in form of seismic waves which are detected by use of seismograms. The impact of earthquakes leaves behind several landmarks including: destruction of property, extensive disruption of services like sewer and water lines, loss of life, and causes instability in both economic and social components of the affected nation (Webcache 2).