Results of Geomagnetic Studies on the Problem of Forecasting Strong Earthquakes in Uzbekistan

作     者：Kakharbay Nasirbekovich Abdullabekov Sabitjan Khamidovich Maksudov Valijon Rustamovich Yusupov Kakharbay Nasirbekovich Abdullabekov;Sabitjan Khamidovich Maksudov;Valijon Rustamovich Yusupov

作者机构：Institute of Seismology of the Academy of Sciences of Uzbekistan Tashkent Uzbekistan 

出 版 物：《International Journal of Geosciences》 (地球科学国际期刊（英文）)

年 卷 期：2023年第14卷第5期

页      面：437-449页

学科分类：070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学] 

主　　题：Geodynamic Polygon Geomagnetic Field Anomaly Earthquake Precursor Magnitude Epicenter Magnetic Station Magnetometer 

摘      要：The article is devoted to the problem of forecasting strong earthquakes by the geomagnetic method. The geomagnetic method is widely used on this problem in seismically active regions of the world as one of the promising, informative and operational geophysical methods. The results of long-term geomagnetic studies on the problem of forecasting strong earthquakes in Uzbekistan are presented. Geomagnetic studies were carried out on the territories of the Tashkent, Ferghana, and Kyzylkum geodynamic polygons in the epicentral zones of strong earthquakes that occurred. Long-term, medium- and short-term precursors of earthquakes have been identified. Anomalous changes in the geomagnetic field associated with the decline in aftershock activity were also revealed. The dependence between the duration of the manifestation of long-term magnetic precursors and the magnitude of earthquakes is determined. Absolute proton magnetometers MMP-1, MV-01 (Russia), and G-856 (USA) were used to measure the geomagnetic field.