Predicting an earthquake is something seismologists have wanted to do forever, but unfortunately it is impossible to know exactly. All they know is that there will be one in the future due to San Francisco's active seismic history and to the fact that it sits right on a fault line. It could be in 2018 but it also could be in 2118, no one knows, and no one will know until it occurs.
2007-07-23 03:21:43
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answer #1
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answered by Anonymous
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There is no question that SF will have a major earthquake sooner or later, but no one has the technology to predict exactly when. San Andreas and other nearby faults are continually active and there is some correlation between increased activity and earthquakes, but they can also occur without much warning. The real question is how severe a quake and how catestrophic the results, but you can be sure a serious one will occur .
2007-07-23 03:55:21
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answer #2
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answered by squeezie_1999 7
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Watch carefully for the following symptoms.It may help you to decide.Methods for prediction of earthquakes & Tsunami
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1. Seismic gape: - The earthquake at a particular place may occur for every fixed gape of time. By knowing the past records of the quakes affected at that place may help to decide when the earthquake is next due.
2. Planet position.: - When the stress is accumulated at the tectonic plate boundary and the same time if the position of more than 2 planets comes in a straight line this may help to accelerate the earthquakes. There fore the full moon days and new moon days are more vulnerable days for earthquakes. Some time this method fails why? Think of a sick patient. New moon and full moon days are dangerous for only sick patents. These days will not affect the healthy people. The same way if there is no accumulated stress at the tectonic plate boundaries no need to worry about the planet positions.
3. Sun rays falling method: - If you observe the position of the sun rays falling on our wall at a particular time on all days it should form an angular infinity symbol. If there is any deviation in its path it means that there is some difference in height of the earth. That means some strain noticed at that place. Somebody claims that they can predict the place of epicenter by observing this. The laser beam measuring method of earth height from satellite also will help.
4. MCDB:- Chinese scientist claims that they can predict up to 60 % accuracy by sensing electro magnetic rays.
5. Cloud forming: - Few hours to a few days before the occurrence of earthquakes a cloud reader claims that he has noticed a peculiar mosaic type of formation .We may also notice some lightening in the sky.
6. By sound :- A professor from Ajmeer University claims that he was able to hear a low frequency noise under 125 meter depth in a bore well. The same thing was reported by one Mr. Nair that he heard some roaring noise under the earth one week before the occurrence of earthquake in Gujarat.
7. By frequency of waves :- Mr Richter Allen of Berkley University claims that he can decide the magnitude of earthquake just 4 seconds after observing the frequency of the primary wave. Present method needs the full seismographic picture to find the real magnitude that too from as many places as possible to have fairly accurate results. His claim has got some truth because when there is a slip of bigger tectonic plate the frequency of quake will be less. If a small tectonic plate slips the frequency of the waves will be more.
8. There are several changes in nature and in the behaviors of animals and birds can be observed before an earthquake and Tsunami. I wrote several articles on these subjects. The water level in well may change. Stay away from beaches if you sense earthquake waves. The Tsunami may attack long after the shaking is stopped.
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2007-07-23 20:50:59
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answer #3
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answered by A.Ganapathy India 7
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It is impossible to predict exactly when an earthquake will hit although we can say with certainty that at some point in the future San Francisco will be hit by another large earthquake.
2007-07-23 03:09:19
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answer #4
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answered by Nell 3
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The 1989 Loma Prieta earthquake introduced approximately billions of dollars in injury and claimed extra beneficial proper than sixty lives. The 1906 earthquake replaced into so great that the shaking outcomes do now no longer in useful circumstance Richter's (1958) replaced Mercalli intensity scale.
2016-10-22 10:14:32
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answer #5
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answered by matchett 4
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Well I wouldn't worry too much because, according to your previous post, the world is going to come to an end in 2012 anyway.
So everyone in SF can rest easy.
2007-07-23 04:22:13
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answer #6
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answered by the_lipsiot 7
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It could happen any day.Maybe 2018,maybe 2008.Maybe tomorrow.
2007-07-23 03:54:04
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answer #7
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answered by TI-452 2
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Right sure it will right after a tornado hits the mountains in Denver.
2007-07-23 03:07:37
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answer #8
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answered by Anonymous
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Absolutely impossible to say. But it's not something that could be completely discounted.....
2007-07-23 04:01:50
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answer #9
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answered by Anonymous
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It's probably just your mom rolling over.
2007-07-23 03:08:35
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answer #10
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answered by Anonymous
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