Far-reaching transient motions after Mojave earthquakes require broad mantle flow beneath a strong crust

Details Far-reaching transient motions after Mojave earthquakes require broad mantle flow beneath a strong crust Far-reaching transient motions after Mojave earthquakes require broad mantle flow beneath a strong crust

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3419302f&link_type=abstract

Geophysical Research Letters, Volume 34, Issue 19, CiteID L19302

Physics

17

Geodesy And Gravity: Transient Deformation (6924, 7230, 7240), Geodesy And Gravity: Rheology Of The Lithosphere And Mantle (7218, 8160), Physical Properties Of Rocks: Plasticity, Diffusion, And Creep, Tectonophysics: Rheology: Mantle (8033), Geodesy And Gravity: Seismic Cycle Related Deformations (6924, 7209, 7223, 7230)

Scientific paper

Geodetically observed postseismic surface displacements in the 7 years following the 1999 Hector Mine earthquake demonstrate a previously unrecognized broad pattern of transient deformation throughout southern California and into Nevada, more than 200 km from the epicenter. Unlike previous postseismic observations in which trade-offs between postseismic mechanisms and the depth of flow lead to non-unique solutions, this deformation pattern can only be explained by viscoelastic flow in a region of the mantle 100s of km wide and below a depth of 40 km. This result enables two robust conclusions regarding the nature of lithospheric strength in this region: the mantle is weaker than the lower crust, and flow occurs over a wide region of mantle as opposed to within a narrow shear zone beneath the fault.

Affiliated with

Also associated with

No associations

Rating

Far-reaching transient motions after Mojave earthquakes require broad mantle flow beneath a strong crust does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Far-reaching transient motions after Mojave earthquakes require broad mantle flow beneath a strong crust, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Far-reaching transient motions after Mojave earthquakes require broad mantle flow beneath a strong crust will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1068791