- Member, American Society of American Civil Engineers (ASCE)
- Member, Earthquake Engineering Research Institute (EERI)
- Member, Seismological Society of America (SSA)
- Bulletin of Seismological Society of America.
- ASCE Journal of Structural Engineering.
- Technical Advisory Committee and Web/Outreach Chair, PEER Ground Motion
- Selection and Modification (GMSM) Program, January 2006 – present.