Homework 11 Fundamentals of Seismology GLY 6379, 4480
Assigned: 24 Nov 2021. due: 1 Dec 2021
A planned hospital in California is on a soil site and is near three strike-slip faults.
Fault Distance Fault length Recurrence Time since Seismicity
Name From site Interval last event rate
A 10 km 15 km 22 yr 10 yr 2 M=1/day
B 30 30 50 20 4
C 70 80 150 30 5
1) For each fault, estimate the magnitude of the largest earthquake. Then use the formulas below to estimate the peak horizontal acceleration and velocity at the hospital site (assume 84 percentile values).
2) List the faults in order of the likelihood of its next characteristic earthquake occurring over time. (estimate from recurrence interval and time since last event)
3) Combining information of shaking and time, which fault gives the most hazard over the next 50 years? Please state your justification or reasoning.