Aspects of Large Taiwan Earthquakes and Their Aftershocks

台灣之大地震及其餘震活動的若干性質

王千翠(Chain-Thusey Wang) ； 王錦華(Jeen-Hwa Wang)

《Terrestrial, Atmospheric and Oceanic Sciences》 4卷3期 (1993/09) Pp. 257-271

並列摘要

From the data of 31 large Taiwan earthquakes and their aftershocks published by Hsu (1971, 1980, and 1985) and reported in the Earthquake Data Report (EDR)by USGS, several aspects of main shocks and their aftershocks are studied. Results show that the magnitude difference (ΔM) between main-shock and the largest aftershock increases with mainshock magnitude (M). The linear relations of ΔM vs. M are different for two data sets. The difference of original times of mainshock and the largest aftershock more or less decreases with magnitude of mainshock. The departure of the M(subscript s)-m(subscript b) scaling of the mainshock from that of aftershocks is bigger for larger main-shocks than for smaller ones. The mainshock magnitude cannot be estimated from the log N-M relation from aftershocks and is actually larger than the maximum magnitude evaluated from the relation.