Any country that has experienced a tsunami recently or that may be hit by one need some kind of warning system to protect their people. Although Sri Lanka is not part of the Pacific tsunami warning system, some officials at the Hawaii station were informed that a tsunami could be developing. The officials then sent a message to Sarath Weerawatnakula, the director of Sri Lanka’s Geological Survey and Mines Bureau. Weerawarnakula said that his organization received an alert from “international bodies” about the quake. He also stated that it took time to decipher the meaning of the message, and then it was too late to get out a signal.
Overall it seems that there currently is not enough public interest and awareness to prepare roughly 12 million individuals for a national disaster. Most don't take into consideration what kinds of effects this is going to have on us and our society. Many of the important buildings in St. Louis that have been around for a century are at great risk due to the states failure to upgrade their structures to withstand such an immense earthquake. This kind of structure collapse would also lead to many more fatalities and injuries which is another thing that has not be thoroughly addressed in planning for this castatrophy. Places like hospitals out of all places still remain to be very vulnerable and in times of disasters these types of buildings should be the very last to crumble Another problem that also shows our incompetence is that the retrofitting of our bridges and highways is also at low priority.
As Stated from the article, “Scientists predicted another earthquake should occur in 1993, but it didn't happen until 2004” (Oskin). No matter the amount of time and research we put into we still do not have a direct date. It is a crazy thought to think that with so much research and facts that scientist would be wrong but that is the beauty of earthquakes. As stated from the article, “What will really happen when San Andreas Unleashes the Big One” it states, “While seismologists can’t predict exactly when that will happen, every few years they release a forecast for the likelihood of such an event” (Zielinski). It seems as if this is as far as we will be getting as a date for when this earthquake will occur.
With improvements in technology, lives have been saved and many more will. All that remains is to research what takes place before, during, and after an earthquake. This has been done for years to the point now that a successful earthquake prediction was made and was accurate. This paper will discuss a little about earthquakes in general and then about how predictions are made. Earthquake, “vibrations produced in the earth's crust when rocks in which elastic strain has been building up suddenly rupture, and then rebound.”(Associated Press 1993) The vibrations can range from barely noticeable to catastrophically destructive.
One being that a large magnitude 7.2 earthquake struck just two days before and was even followed by a tsunami (Sorkhabi). Normally, when such a large earthquake occurs, it signifies to people that the big earthquakes are done, at least for that time; nobody fathomed that this would be the precursor to such a devastating event. The other reason was that such a large earthquake was unprecedented in Japanese history; Japan had suffered through some very serious earthquakes over the years, but generally, Japan learned from these disasters and made several preparations over the years (in roads, infrastructure, etc.) to handle similar events. Simply because it never happened, nobody figured that an over-nine magnitude earthquake would occur (Sorkhabi).
If the earthquake occurs more than 100 km below the surface, a tsunami will not occur because there is not enough vertical displacement of the water. Bibliography "Physics for Scientists and Engineers", (2004), Serway and Jewett, Brooks/Cole Thomson Learning "Furious Earth - The Science and Nature of Earthquakes, Volcanoes, and Tsunamis", (2000), Ellen Prager, McGraw-Hill Publishing "The Official Tommy Tsunami and Ernie Earthquake Coloring Book", (1980), Jewell Hermon, Alaska Emergency Services
Without a proper technique for finding the number of parent atoms, researchers should not even begin dating specimens on Earth. The number of beginning parent atoms should be carefully measured to ensure reliable results of radiometric datin... ... middle of paper ... ...his is because the moisture would “leech out” radioactive material, changing its internal makeup. Specimens are not tested for contaminations; they are assumed to be free of them and should be put through a series of processes to examine the specimen to add validity to the dating technique. Although it is used worldwide, radiometric dating’s assumptions cause it to be an invalid method. Scientists do not know if a specimen began with only parent atoms and no daughter isotopes have been created.
The only thing that troubled me and probably most scientists, is magnitude, there is no possible way of predicting an earthquakes magnitude. Which is what we are really trying to predict. Earthquakes happen all the time, but what we are really trying to figure out how to predict is when a major earthquake is going to occur. I learned that earthquakes are almost unpredictable, and devastating acts of nature. I also learned how earthquakes occur and almost all of the "earthquake dictionary".
Individuals need to be concerned about the risks associated with the massive mega quakes. However, it seems that the people in the potential inundation zone have very little knowledge on the risks involved with mega quakes. Individuals that would be given a chance to live in the Pacific Northwest say that they would think twice. There is the need to offer education and training for the residents of the Pacific Northwest on the need for emergency preparedness and the things that should be done in case of massive mega quakes.
As an informed, and voting, citizen of the next millenium, you will need to keep listening, looking, and being alert to new research and evidence. Science Is global warming occurri... ... middle of paper ... ... reside with chapter Lead Authors... Some Lead Authors ignored valid critical comments or failed to... reflect dissenting views..." The report was therefore the result of a political rather than a scientific process. Claim: The majority of scientists believe global warming is a process underway and that it is human-induced. Fact: A 1992 Gallup survey of climatologists found that 81 percent of respondents believed that the global temperature had not risen over the past 100 years, were uncertain whether or not or why such warming had occurred, or believed any temperature increases during that period were within the natural range of variation.