The Role of Fault Strands and Roughness in Fault and Earthquake Mechanics

Lead PI: Dr. Bruce E. Shaw

Unit Affiliation: Seismology, Geology and Tectonophysics, Lamont-Doherty Earth Observatory (LDEO)

September 2010 - August 2012
Inactive
Global
Project Type: Research

DESCRIPTION: The project will model faults a system of rough surfaces rather than one rough surface. This will: test the hypothesis that rough fault strands can slip under uniform loading without locking up; resolve a number of questions relevant to fault and earthquake mechanics; and compare the model with geological and seismological observations.

SPONSOR:

National Science Foundation (NSF)

FUNDED AMOUNT:

$144,000

WEBSITE:

https://www.nsf.gov/awardsearch/showAward?AWD_ID=0943939&HistoricalAwards=false

PUBLICATIONS:

B.E. Shaw. "Surface slip gradients of large earthquakes," Bulletin of the Seismological Society of America, v.101, 2011, p. 792. doi:10.1785/0120100053

E.T. Coon, B.E. Shaw and M. Spiegleman. "A Nitsche- extended finite element method for earthquake rupture on complex fault systems," Computer Methods in Applied Mechanics and Engineering, v.200, 2011, p. 2859. doi:10.1016/j.cma.2011.05.005

KEYWORDS

seismology geology and tectonics fault movement faults earthquakes modeling fault strands

THEMES

Restless earth