David J Wald
Dr. Wald is a Seismologist with the USGS in Golden. He is involved in research, development & operations of several real-time earthquake information systems at the USGS National Earthquake Information Center. He developed and manages “ShakeMap”, “Did You Feel it?”, & is responsible for developing other systems for post-earthquake response & pre-earthquake mitigation, including ShakeCas
Wald's scientific interests include the characterization of rupture processes from complex recent and historic earthquakes using combined geodetic, teleseismic, and strong motion data; waveform modelling and inversion; analysis of ground motion hazards and site effects; earthquake source physics; and modelling earthquake-induced landslides, liquefaction, and losses, macroseismic intensity, building damage, financial and human impact, rapid damage and impact assessment, earthquake scenario development and mitigation planning and drills, and communication with the media, public, and emergency managers.
Previously at Caltech, and now at the Colorado School of Mines, Wald has advised dozens of post-doctoral, graduate, and undergraduate student research projects. Wald directly supervises 10 PhD level scientists and 5 five BS and MS level support staff, and supervises several students. Wald serves on several PhD committees at this time. This research has resulted in more than 450 professional publications that David has authored or co-authored, including journal papers, USGS publication series, conference papers, and published abstracts.
Education:
Post-doctoral Fellow, Geophysics, National Research Council, USGS, Pasadena, 1995
Ph.D., Geophysics, California Institute of Technology, Pasadena, CA, 1993
M.S., Geophysics, University of Arizona, Tucson, AZ, 1986
B.S., Geology & Physics, St. Lawrence University, Canton, NY, 1984
Science and Products
Creating a Global Building Inventory for Earthquake Loss Assessment and Risk Management
ShakeCast Manual
Development of the U.S. Geological Survey's PAGER system (Prompt Assessment of Global Earthquakes for Response)
The USGS Earthquake Notification Service (ENS): Customizable notifications of earthquakes around the globe
Rapid Assessment of earthquake-induced landsliding
ShakeCast: Automating and improving the use of shakemap for post-earthquake deeision-making and response
Topographic Slope as a Proxy for Seismic Site-Conditions (VS30) and Amplification Around the Globe
USGS ShakeCast
PAGER - Rapid Assessment of an Earthquake's Impact
Seismicity associated with the Sumatra-Andaman Islands earthquake of 26 December 2004
"Did you feel it?" Intensity data: A surprisingly good measure of earthquake ground motion
Advanced National Siesmic System delivers improved information
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
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Creating a Global Building Inventory for Earthquake Loss Assessment and Risk Management
Earthquakes have claimed approximately 8 million lives over the last 2,000 years (Dunbar, Lockridge and others, 1992) and fatality rates are likely to continue to rise with increased population and urbanizations of global settlements especially in developing countries. More than 75% of earthquake-related human casualties are caused by the collapse of buildings or structures (Coburn and Spence, 200AuthorsKishor Jaiswal, David J. WaldShakeCast Manual
ShakeCast is a freely available, post-earthquake situational awareness application that automatically retrieves earthquake shaking data from ShakeMap, compares intensity measures against users? facilities, and generates potential damage assessment notifications, facility damage maps, and other Web-based products for emergency managers and responders.AuthorsKuo-Wan Lin, David J. WaldDevelopment of the U.S. Geological Survey's PAGER system (Prompt Assessment of Global Earthquakes for Response)
The Prompt Assessment of Global Earthquakes for Response (PAGER) System plays a primary alerting role for global earthquake disasters as part of the U.S. Geological Survey’s (USGS) response protocol. We provide an overview of the PAGER system, both of its current capabilities and our ongoing research and development. PAGER monitors the USGS’s near real-time U.S. and global earthquake origins and aAuthorsD. J. Wald, P.S. Earle, T.I. Allen, K. Jaiswal, K. Porter, M. HearneThe USGS Earthquake Notification Service (ENS): Customizable notifications of earthquakes around the globe
At the beginning of 2006, the U.S. Geological Survey (USGS) Earthquake Hazards Program (EHP) introduced a new automated Earthquake Notification Service (ENS) to take the place of the National Earthquake Information Center (NEIC) "Bigquake" system and the various other individual EHP e-mail list-servers for separate regions in the United States. These included northern California, southern CalifornAuthorsLisa A. Wald, David J. Wald, Stan Schwarz, Bruce Presgrave, Paul S. Earle, Eric Martinez, David OppenheimerRapid Assessment of earthquake-induced landsliding
The Pacific Northwest in the United States including Seattle, Washington, experienced unusually heavy rainfall in the winters of 1995/1996 and 1996/1997, which caused numerous landslides. Following these two winters, the City of Seattle resolved to reduce future landslide losses within its jurisdiction. By coincidence, in 1997 the U.S. Geological Survey (USGS) began a five-year project designed toAuthorsJ. W. Godt, B. Sener, K.L. Verdin, D. J. Wald, P.S. Earle, E. L. Harp, R. W. JibsonShakeCast: Automating and improving the use of shakemap for post-earthquake deeision-making and response
When a potentially damaging earthquake occurs, utility and other lifeline managers, emergency responders, and other critical users have an urgent need for information about the impact on their particular facilities so they can make appropriate decisions and take quick actions to ensure safety and restore system functionality. ShakeMap, a tool used to portray the extent of potentially damaging shakAuthorsD. Wald, K.-W. Lin, K. Porter, Loren TurnerTopographic Slope as a Proxy for Seismic Site-Conditions (VS30) and Amplification Around the Globe
Executive Summary It is well-known that large global earthquakes can have a dramatic effect on local communities and the built environment. Moreover, ground motions amplified by surficial materials can exacerbate the situation, often making the difference between minor and major damage. For a real-time earthquake impact alert system, such as Prompt Assessment of Global Earthquakes for ResponseAuthorsTrevor I. Allen, David J. WaldUSGS ShakeCast
Automating, Simplifying, and Improving the Use of ShakeMap for Post-Earthquake Decisionmaking and Response. ShakeCast is a freely available, post-earthquake situational awareness application that automatically retrieves earthquake shaking data from ShakeMap, compares intensity measures against users facilities, and generates potential damage assessment notifications, facility damage maps, and oAuthorsDavid Wald, Kuo-Wan LinPAGER - Rapid Assessment of an Earthquake's Impact
PAGER (Prompt Assessment of Global Earthquakes for Response) is an automated system to rapidly assess the number of people and regions exposed to severe shaking by an earthquake, and inform emergency responders, government agencies, and the media to the scope of the potential disaster. PAGER monitors the U.S. Geological Survey?s near real-time U.S. and global earthquake detections and automaticallAuthorsPaul S. Earle, David J. WaldSeismicity associated with the Sumatra-Andaman Islands earthquake of 26 December 2004
The U.S. Geological Survey/National Earthquake Information Center (USGS/ NEIC) had computed origins for 5000 earthquakes in the Sumatra-Andaman Islands region in the first 36 weeks after the Sumatra-Andaman Islands mainshock of 26 December 2004. The cataloging of earthquakes of mb (USGS) 5.1 and larger is essentially complete for the time period except for the first half-day following the 26 DecemAuthorsJ. W. Dewey, G. Choy, B. Presgrave, S. Sipkin, Arthur C. Tarr, H. Benz, P. Earle, D. Wald"Did you feel it?" Intensity data: A surprisingly good measure of earthquake ground motion
The U.S. Geological Survey is tapping a vast new source of engineering seismology data through its "Did You Feel It?" (DYFI) program, which collects online citizen responses to earthquakes. To date, more than 750,000 responses have been compiled in the United States alone. The DYFI data make up in quantity what they may lack in scientific quality and offer the potential to resolve longstanding issAuthorsG. M. Atkinson, D. J. WaldAdvanced National Siesmic System delivers improved information
[No abstract available]AuthorsS.A. Sipkin, J.R. Filson, H. M. Benz, D. J. Wald, P.S. EarleNon-USGS Publications**
References in Google Scholar**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
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