THE RELATIONSHIP OF EARTHQUAKE DAMAGE DUE TO 1994 FAR-OFF SANRIKU EARTHQUAKE AND GROUND CHARACTERISTICS

The Shikotan Earthquake of October 4, 1994 Lithospheric earthquake

A large Mw--8.2 earthquake occurred off Shikotan Is., one of the Kurile Is., on October 4, 1994. We inverted 32 body-wave records to determine the rupture pattern using an iterative deconvolution method. The mechanisms of the subevents were allowed to vary during rupture. The source parameters obtained are: the location of the initial break = (43.48øN, 147.40øE); the centroid depth = 56 km; (st...

Influence of Local Soil Conditions on Ground Response and Damage Pattern Due to Earthquake

The Earthquake of January 26, 2001 of magnitude 7.6 on Richter scale has resulted in more than 25,000 fatalities and wide spread damage in India and SouthEast lower part of Sindh, Pakistan. The Intensity of this earthquake was felt from severe to minor near the epicenter and areas within 400 km radius. It has been reported that severe damage has occurred to mid to high-rise buildings in the cit...

Earthquake nucleation and its relationship to earthquake clustering

Earthquake clustering phenomena such as aftershocks, foreshocks, and pairing of mainshocks are prominent and characteristic features of earthquake occurrence. Because the earthquake nucleation process controls the time and place of occurrence of earthquakes, non-linear dependence of nucleation times on stress changes can strongly affect the spatial and temporal patterns of earthquake occurrence...

Earthquake Ground Motion

Investigate probability of damage of Earth dam under Near-field and Far –field earthquake : Case study Gotvand earth dam

The main goal of preset research is investigate the effects of vertical component of Near-Fault and Far-Field earthquake records on the probability of overtopping induced damage of earth dam due to the reduction of freeboard due to the settlement of dam crest. In this respect 12 different earthquake record are selected. Nonlinear dynamic analysis of earth dam is implemented with FLAC 3D using F...