1 / 22

Rate on a fault: How much displacement is accomodated On that feature for a given time.

Rate on a fault: How much displacement is accomodated On that feature for a given time. Geologic rate: Distance between offset feature/Time Geodetic rate: The amount of deformation imposed in the Model to fit the geodetic data. Example of Geologic rate. Seismicity.

signa
Download Presentation

Rate on a fault: How much displacement is accomodated On that feature for a given time.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Rate on a fault: How much displacement is accomodated On that feature for a given time. Geologic rate: Distance between offset feature/Time Geodetic rate: The amount of deformation imposed in the Model to fit the geodetic data

  2. Example of Geologic rate

  3. Seismicity Up to now we have assumed linear behavior of the movement of the observed point Lecture 6 May 24th 2005

  4. Modeling Many models on the market, each has his pro and con Here I will look a 2 models (the other one on Monday): Elastic half space (Savage and Buford, 1978) Elastic half-space the deformation is driven by a dislocation with predefined rate beneath a given locking depth. Very easy and fast analytical solution. The model is static (no time dependency). (Widely used by the geodetic community) Geodetic rate: the amount of slip we impose on the dislocation to fit the data

  5. Earthquake Cycle Thatcher 1986

  6. Locked faults From Dixon et al 2001

  7. Locked faults From Dixon et al 2001

  8. Locked faults From Dixon et al 2001

  9. Locked faults From Schmalzle et al JGR 2006

  10. Locked faults From Schmalzle et al JGR 2006

  11. Locked faults Best fit geological rate 34+- 3 mm/yr Best fit GPS rate 38 mm/yr locking depth 20km Seismicity depth 12-17 km From Schmalzle et al JGR, 2006

  12. CREEPING FAULTS

More Related