Akademik Veri Yönetim Sistemi
GEO-MARINE LETTERS, cilt.43, sa.2, 2023 (SCI-Expanded)
The real shape of the earth is approximated closer to an ellipsoidal curvature other than a homogeneous half-space. Therefore, the use of the dislocation theory of homogeneous half-space for the farthest epicentral distance brings an error. This study investigates the far-filed effect of dislocation modeling of homogeneous half-space due to the ellipsoidal curvature of the Earth. The co-seismic displacement in South Korea is used for the dislocation modeling of the Tohoku-Oki (TO) Japan earthquake as one of the numerical examples. The obtained slip by using geodetic measurements in South Korea is compared with the measured slip of Japan's geodetic measurements. Analysis of modeled results showed that the obtained result with accuracy is lower than around 20%. Therefore, the study concludes that it can be an error in the use of the dislocation modeling theory of homogeneous half-space for the farthest epicentral distance.