The effects of shear soil strength, soil stiffness, horizontal fault displacement, width of the fault slip zone are investigated.
Because surface faulting has sometimes occurred beyond the limit of mapped fault traces or where fault traces have not been previously recognized, the control width of the fault is increased by a factor which is dependent upon the largest potential earthquake related to the fault.
The 2011 off the Pacific coast of Tohoku Earthquake M 9.0 ruptured a fault area nearly 500 km along-strike length and 200 km down-dip width of the fault off-shore of the Tohoku region along the Japan Trench subduction zone as a huge thrust earthquake at 14 46 (JST = UT + 9 hours) on March 11, 2011 (Japan Meteorological Agency (JMA)).
the length and width of the fault plane (typically in m or km), the latitude and longitude of some point on the fault plane, typically either the centroid or the center of the top (shallowest edge), the depth of the specified point below the sea floor, the strike angle, that is, the orientation of the top edge, measured in degrees clockwise from North and takes values between 0 and 360.
Based on the recognition results, we found that there is an obvious positive relationship between the width of the fault zone and the displacement, and the power-law relationship also exists between the width of the fault core and damage zone.
We assume the width of each fault from the lower cutoff depth of microseismic activities, the depth of the upper limit of the fault plane, and the dip angle assumed for each fault.
We modeled the FKFZ earthquake as a west-dipping pure reverse fault with a dip angle of 30° and a strike of N180° E. The length and width of the fault are each 15 km, and the slip amount is 5 m.
In this event, the use in table 2 of the width of mapped fault traces more than 10 miles from the point of nearest approach to the nuclear power plant may be appropriate.
The width of each fault is listed in Table 2.
The slip amount was highly correlated with the magnitude, length, and width of the fault plane.
