Annemarie Baltay is an observational seismologist with the USGS in Menlo Park who researches earthquake ground motions. She is interested in how earthquake source physics and earth materials/structure control ground motions measured at distances from an earthquake, and how we use observations of ground motion to infer information about the physics of the earth. She is also involved in the development of the USGS led ShakeAlert earthquake early warning project to alerts the U.S. West coast for earthquake ground motion before it arrives at a user's location. Annemarie received her PhD in Geophysics from Stanford before becoming a Mendenhall Postdoctoral Scholar at the USGS. While conducting cutting edge research, she also enjoys being in the extremely collaborative environment of the USGS.
SCEC Participation
Current Roles
SCEC Science Planning Committee, Group Co-Leader (2016 - Present)
Parker, G. A., & Baltay, A. S. (2021, 08). The Effect of Earthquake Depth on Ground Motion Predictions for Earthquake Early Warning Alerting . Poster Presentation at 2021 SCEC Annual Meeting. SCEC Contribution 11521
Rosas, V. G., & Baltay, A. S. (2020, 08). Analyzing Stress drops and other earthquake parameters from the 2019 Ridgecrest Earthquake Sequence. Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10738
Baltay, A. S., & Abercrombie, R. E. (2020, 08). Stress drop and ground-motion source comparison of the July 2019 Ridgecrest earthquake sequence: A community validation study . Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10673
Saunders, J. K., Aagaard, B. T., Baltay, A. S., & Minson, S. E. (2020, 08). Incorporating ground-motion uncertainties into earthquake early warning alert distance strategies using the July 2019 M6.4 and M7.1 Ridgecrest, California, earthquakes. Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10596
Parker, G. A., & Baltay, A. S. (2020, 07). Empirical Map-Based Models of Nonergodic Site Response in the Greater Los Angeles Area. Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10215
Barbour, A. J., & Baltay, A. S. (2016, 07). Ground Strains in Southern California from Earthquakes on the San Jacinto Fault. Poster Presentation at 2016 SCEC Annual Meeting. SCEC Contribution 6369
Baltay, A. S., Beroza, G. C., & Hanks, T. C. (2013). Stable Stress Drop Measurements and their Variability: Implications for Ground-Motion Prediction. Bulletin of the Seismological Society of America, 103(1). doi: 10.1785/0120120161. SCEC Contribution 1519
Baltay, A. S., Prieto, G. A., & Beroza, G. C. (2010). Radiated seismic energy from coda measurements and no scaling in apparent stress with seismic moment. Journal of Geophysical Research, 115(B08314). doi: 10.1029/2009JB006736. SCEC Contribution 1287
