Geodetic deformation model for the 2022 update of the New Zealand National Seismic Hazard Model

Katelyn M Johnson, Laura M. Wallace, J. Maurer, Ian J. Hamling, Charles A. Williams, Chris Rollins, Matt C. Gerstenberger & Russ J. Van Dissen
In order to incorporate geodetic measurements of contemporary deformation into the 2022 revision of the New Zealand National Seismic Hazard Model (NSHM), we develop strain rate and fault slip deficit rate models derived from New Zealand’s interseismic Global Navigation Satellite Systems (GNSS)-derived velocity field. Four strain-rate maps, derived from different methodologies, underpin elastic deformation models that are based on inversions of strain rate for slip deficit rates on the suite of faults being used in...
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