Applied Technology Council A Nonprofit Corporation Advancing Engineering Applications for Hazard Mitigation California - Washington, DC Area

NEWS RELEASE February 14, 2001

For More Information, Contact: A. Gerald Brady, 650/595-1542 E-mail: gbrady@atcouncil.org

ATC Schedules Second ATC-35 Workshop On National Earthquake Ground-Motion Mapping

The Applied Technology Council (ATC) is pleased to announce the scheduling of the 2nd ATC-35 Workshop on National Earthquake Ground-Motion Mapping for Thursday and Friday, May 10-11, 2001, in San Francisco at the Radisson Miyako Hotel. The Workshop is being convened by ATC and the U.S. Geological Survey (USGS). Like the first ATC-35 National Earthquake Ground Motion Mapping Workshop held in Los Angeles in 1995, this Workshop will provide input from the structural engineering, geosciences, and geotechnical engineering professions to the USGS on several key issues that affect the preparation and use of the second round of national earthquake ground-motion maps. The Workshop will also provide input for USGS on new map-related products desired by map users.

The following topics will be the focus of the Workshop:

• Scientific Issues: Near-fault directivity effects; time-dependent earthquake probabilities; ground motion attenuation relationships; uncertainty.
• Issues for Design Maps: Frequency of updating maps; degree of detail in maps; deterministic bounds; role of USGS.
• Map Products and New Directions: Current and planned map products; new directions in mapping.

In addition, Workshop participants will have the opportunity to review and provide input to the USGS on preliminary plans for changes to seismic source models in locations such as the Pacific Northwest and the New Madrid seismic zone.

The Workshop is open to the profession at large, though space and participation may be limited. The Registration Form may be downloaded here as a PDF file. Registration will be accepted on a first-come, first-serve basis. The Workshop registration fee is $150 ($120 for ATC subscribers) and includes the cost of workshop handouts, luncheons, and refreshments. A late fee of $25 will be imposed on registrations postmarked after May 1, 2001. Persons wishing to participate in the Workshop should download and send in the registration form or contact the Applied Technology Council, 555 Twin Dolphin Drive, Suite 550, Redwood City, California 94065; Phone, 650/595-1542; Fax, 650/593-2320; e-mail, atc@atcouncil.org.

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