Multi-dipole observation system and study on the abnormal variation of the geoelectric field observed at Capital Circle area before the Wen'an M_S5.1 earthquake |
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| Authors: | MA Qin-zhong Earthquake Administration of Shanghai Municipality Shanghai China |
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| Institution: | MA Qin-zhong Earthquake Administration of Shanghai Municipality,Shanghai 200062,China |
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| Abstract: | On July 4,2006,a MS5.1 earthquake occurred in Wen'an county of Hebei Province of which the epicenter is near the Beijing city.The six geoelectric field monitoring stations have been in operation for several years around the Beijing area to examine the relationship between electric field changes and earthquake.This paper firstly explains the principle of the eliminating noise method by using multi-dipole observation system of the geoelectric field.Then the data observed at the stations are studied and a lot ... |
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| Keywords: | Wen'an earthquake geoelectric field multi-dipole observation signal recognition |
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