1. Student Member, ASCE
2. Members, ASCE
3. Grad. Student, Dept. of Civ. and Envir. Engrg., Univ. of California, Los Angeles.
4. Asst. Prof., Dept. of Civ. and Envir. Engrg., Univ. of California, Los Angeles, CA 90095. E-mail: jstewart@seas.ucla.edu
5. Seismologist, Pacific Gas and Electric Co., San Francisco, CA.