Considering the onset of intense heat wave in America, strange animal behaviour and phone line disturbances,...... are these perhaps a few warning signs of an impending earthquake coming to America soon? A near future possibility? Of course, we need more signs to verify.
I do not know if my guess is correct, and I can be wrong altogether. I went to various sites to further my research. Below is so far the best info I can find. Have a read.
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FAIR USE FOR DISCUSSION & EDUCATIONAL PURPOSE ONLY
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http://wiki.answers.com/Q/Warning_signs_for_an_earthquake
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Thermal precursor: A few months before the occurrence of an earthquake the average temperature of the area keeps increasing. Weather report bulletins refer to temperatures above or below average by so many degrees. It is seen that in case the area is heading for an earthquake, the average temperature goes on increasing. On the day of the earthquake it is about 5 to 9 degrees Celsius above the average normal temperature for that day. This could be monitored by the meteorology department and also by thermometers inside homes.
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Water precursor: There is a sudden rise or fall in water level in the wells. It could be as high as one metre. Sometimes the well water may turn muddy. At times a fountain appears inside the well. All these changes happen about one or three days before the earthquake. Sometimes a fountain appears in the ground. This normally happens a few hours before the quake.
Another form of water precursor is seen in the flow of riverwater. There is a sudden and rapid increase or decrease of water flow in the river or nallah. This happens about one to two days before the quake. In wells, the well water may begin to bubble.
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Seismo-electromagnetic precursor: This is a very reliable precursor. It occurs and is exhibited about 10 to 20 hours before the quake. Before the occurrence of an earthquake the subsurface temperature rises. As a result of this the geomagnetic field is reduced. The reduction in geomagnetic field adversely affects the propagation of electromagnetic waves. This is experienced abundantly on the radio, television and telephone.
If one is tuning the radio at 1000 kHz, then the same station will be received in the potential epicentral area, about 10 to 30 hours before the quake, at higher frequencies. Maybe 1100, 1200, 1300, 1800, 1900, 2000 kHz or so.
Similarly, reception on television is affected by audio, visual and spectral disturbances. The telephone's reception is also adversely affected and there is a continuous disturbance that you can hear.
Apart from this, a recent reliable precursor is the mobile telephone. It has been found that about 100 to 150 minutes before the occurrence of an earthquake, mobile telephones start non-functioning or malfunctioning. The timespan indicated is sufficient to take all necessary mitigatory measures.
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A Word Of Caution:
All the above precursors are valid only when seen and manifested extensively. Failure of one or two instruments should not be taken as a seismic precursor.
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Animal precursor: It is seen that 10 to 20 hours before the occurrence of an earthquake, the entire animal kingdom becomes highly disturbed and restless. They move in a directionless manner and in fear. Birds do not sit on trees but move about at a low height, emitting a shrill noise. Rodents like rats, mongooses etc are in a panic. Domestic animals like cows, dogs, cats etc struggle against being tied up, and even turn on the owner. Pandas may moan.
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Human precursor: Doctors and nurses observe that some sensitive patients in hospitals become highly disturbed. They exhibit a sudden rise in blood pressure, heart trouble, headache, migraine, respiratory disorders etc. Further, these psychosomatic signs are manifested without any provocation. It is also seen that the number of patients in the out-patient department increases by five to seven times, some 10 to 20 hours before the quake.
The best indicator is the number of child deliveries in any hospital. On the penultimate day of the earthquake the number of deliveries goes up about three to five times, while on the day of the earthquake it is as high as seven to eight times the normal.
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