Use of Kazakh nuclear explosions for testing dilatancy diffusion model of earthquake prediction

Abstract

P-wave travel time anomalies from Kazakh explosions during the years 1965-1972 were studied with reference to Jeffreys Bullen (1952) and Herrin Travel time tables (1968) and discussed using F ratio It test at seven stations in Himachal Pradesh. For these events, the temporal and spatial variations of travel time, as residuals were examined from the point of view of long-term changes in velocity known to precede earthquakes and local geology.

The results show preference for Herrin Travel time tables at these epicentral distances from Kazakh explosions. F ratio test indicated that variation between sample means of different stations in the network showed more variation than can be attributed to the sampling error. Although the spatial variation of mean residuals (1965-1972) could generally be explained on the basis of the local geology, the temporal variations of such residuals from Kazakh explosions offer limited application in the testing of dilatancy model of earthquake prediction.