High frequency and region-scale simulations of large (Mw7+) earthquakes on the southern Whidbey Island fault, Washington, USA

This dataset consists of 3-component velocity time-series that describe ground shaking from simulated Mw7+ earthquakes on the southern Whidbey Island fault in Washington state. These were produced in support of the research project described in Stone et al. (2025). Simulations spanned a variety of different source parameters (hypocenter location, slip distribution, magnitude, dip direction) and source locations. The simulations were run at two different model resolutions: a larger regional-scale domain with 1Hz resolution that covers most of northwest Washington, and a smaller local-scale domain with 2.5Hz resolution that encompassed the Mw7 rupture and the nearby cities of Seattle, Everett, and Bellevue. A subset of the local-scale simulations were run in a model space considering surface topography. Regional-scale simulation time-series were produced on a regular grid of stations spaced at 1km; local-scale simulation time-series were produced on a regular grid of stations spaced at 0.5km. Additionally, time-series were produced at locations corresponding to PNSN (UW) and USGS (GS) seismometer sites in the area, and linear virtual arrays on select topographic features. Time-series data are saved in HDF5 format. Please refer to the publication Stone et al. (2025) for additional technical details on the simulations and a corresponding analysis of the results. This data release contains the timeseries data from all 78 simulations, the 42 corresponding source files, a jupyter notebook with an example of how to open and manipulate the data, and a document describing data formatting.

[
  "010:12"
]

[
  "geospatial"
]