Fault zone deformation and shallow slip from differential LiDAR tested on recent earthquakes in Japan: a VISES Collaboration

Project: Research project

Description

Two recent earthquakes in NE Japan are the first large events to be spanned by sub-meter resolution before and after topographic data, providing a novel opportunity to test airborne Light Detection And Ranging (LiDAR) differencing techniques while strengthening ties with Japanese geoscientists. Dense, 3-dimensional (3-D) coseismic displacements will be computed along the two earthquake ruptures, and subsequent modeling used to determine the shallow fault slip distribution. We will also organize a joint workshop in Japan on LiDAR in tectonic geomorphology, earthquake imaging, and high performance visualization of LiDAR data (see separate workshop proposal). The project addresses SCEC4s ambition to build a Virtual Institute for the Study of Earthquake Systems (VISES) by developing links between early career researchers (E. N. and S. S.) and Japanese scientists while undertaking research that is relevant to SCECs core priorities. Such high-resolution data pairing will be expected to happen if an earthquake occurs within the Earthscope LiDAR footprint in the near future, and the differencing techniques developed in this proposal will be directly applicable. In this instance they would help address many of SCEC4s fundamental research priorities, including better non-point-source slip descriptions of earthquakes (in line with SoSAFEs priorities) and improved Community Geodetic and Community Fault Models (CGM and CFM).
StatusFinished
Effective start/end date2/1/141/31/16

Funding

  • NSF: Directorate for Geosciences (GEO): $12,012.00

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fault zone
earthquake
earthquake rupture
fault slip
footprint
geomorphology
visualization
detection
tectonics
modeling