Assuming that the earthquake magnitude is 7.0, the epicentral distance is about 200 km according to Eq. (5). This result is similar to that reported by Niu (2000) but much lower than that calculated from Eq. (7) (1000 km).
Assuming that the earthquake magnitude is 7.0, the epicentraldistance is about 200 km according to Eq. (5). This result is similarto that reported by Niu (2000) but much lower than that calculatedfrom Eq. (7) (1000 km).