Measurement of comparative terrestrial stress at Xian and nearby areas and earthquake fatalness study
Abstract
Through studying the distribution-configuration and variation-characteristics of deep underground depth terrestrial stress, the on the ground location of where the earthquake will occur can be determined, the magnitude of the future earthquake can be calculated, and the timing of the earthquake occurrence could be held. With the DYL Type Terrestrial Stress Measurement Instrument, installed on a vehicle or on a train, using a natural electromagnetic wave field source, can directly and rapidly measure the comparative terrestrial stress magnitude of which geological bodies are subjected to at deep underground depths of 5km, 7km and 10km. Through the study method of terrestrial stress issoline analysis, can determine the configuration and size of future earthquake source zones, explain locations of deep and major faults and terrestrial heat abnormal zones. In accordance with the background data, detected and measured by the MDCB Instrument, indicating that damaging earthquake underlies dormant in areas nearby Xian, as well as the Xian Seismology Bureau’s consultation and study opinion on situation of earthquakes nearby Xian for the year 2001, the Xian Municipal Government and the Xian Municipal Science Committee approved to establish the project for studying the conditions of terrestrial stress at deep underground depths at Xian and nearby areas. This paper is the resulting report of the completion study on this project. Upon review and examination by concerned specialists from the State Seismology Bureau of China, it was concluded that this report provides important seismological and geological basis for determining the on the ground location for where damaging earthquake(s) could occur nearby Xian in the future, and for the Xian area to establish earthquake resistance, earthquake prevention measures and earthquake precursor monitoring and measurement measures.
- Publication:
-
EGS - AGU - EUG Joint Assembly
- Pub Date:
- April 2003
- Bibcode:
- 2003EAEJA....11086W