澜沧—耿马地震前地震熵异常研究

STUDY OF ANOMALIES OF EARTHQUAKE ENTROPY BEFORE LANCANG-GENGMA EARTHQUAKE

本文将地震系统作为开放系统进行研究,认为系统和外界有物质和能量的交流,导致孕震区滑向不稳定的非平衡态,然后在各种涨落扰动下发生地震。本文研究1988年澜沧——耿马地震、1976年龙陵、宁蒗地震、1974年昭通地震、1970年通海地震孕震区,得到大震孕育调整模型,大震前地震开放系统熵值曲线变化特征,可作为大震预报指标应用于日常监测工作中。

This paper lakes tin. ca.rlhquak.i-1 system as ;m op1 i; oiu and 'iiggesl.-. thai the earthquake, system carries on material and tneicvy exchanges with the oulsid; world which pushes the seismic-generating region into a. state of unstable disequilibrium and gives rise to earthquake occtirruiccs if disturbed by the fluctuation of other factor-,. The author studies Ihe s.. Kiiiogem lie regions respectively of Laucang-Gcngnui, 1988, Longling-N inglang, 1976, Zlmotong, 1974 and Tonghai, 1970 earthquakes, arid obtains the model show i rip i he. readjUjf me n t ui the sf''on;.f shock i',cnerating process as well as the characteristics of changes in the seismic entropy curves of the pre-ilrong-evcnl earthquake open system. These might bo used as indices for prediclin^ strong earthquakes in our routine moiiilorimr work.