David Jay Wald (born May 6, 1962 Greenwich, Connecticut)[1] is a seismologist with the U.S. Geological Survey (USGS) at the National Earthquake Information Center (NEIC) in Golden, Colorado.

[9][10] As well as management of these systems, Wald's research also focuses on characterization of rupture processes from complex earthquakes, analysis of ground motions and site effects, and modeling earthquake-induced events.

[8] He worked in Pasadena, California for Woodward-Clyde Consultants from 1986–1988 on seismic hazard assessments for the Diablo Canyon Power Plant.

(DYFI),[18] Wald leveraged the work of Lori Dengler and Jim Dewey following the Northridge earthquake.

[22] ShakeCast is now a fully automated software system for delivering specific ShakeMap products to critical users and triggering established post-earthquake response protocols.

ShakeCast generates potential damage assessments and inspection priority notifications, maps, and web-based products for critical users, emergency managers, and anyone specified on a need-to-know basis.