TY - JOUR
T1 - Holocene slip rate of the Wasatch fault zone, Utah, from geodetic data
T2 - Earthquake cycle effects
AU - Malservisi, Rocco
AU - Dixon, Timothy H.
AU - La Femina, Peter C.
AU - Furlong, Kevin P.
PY - 2003/7/1
Y1 - 2003/7/1
N2 - GPS data define a broad zone of present day deformation in the eastern Basin and Range province, western US. Using finite element models with elastic upper crust over viscoelastic lower crust/upper mantle and incorporating earthquake cycle effects, we show that these data are consistent with a model whereby most contemporary fault slip is focused on the Wasatch fault zone. Modeled rates of horizontal extension are 3.0-4.5 mm/yr, in agreement with Holocene geologic data. The models are non-unique, in part because much of the Wasatch fault is in the late stages of the earthquake cycle, when surface velocity gradients across the fault are low.
AB - GPS data define a broad zone of present day deformation in the eastern Basin and Range province, western US. Using finite element models with elastic upper crust over viscoelastic lower crust/upper mantle and incorporating earthquake cycle effects, we show that these data are consistent with a model whereby most contemporary fault slip is focused on the Wasatch fault zone. Modeled rates of horizontal extension are 3.0-4.5 mm/yr, in agreement with Holocene geologic data. The models are non-unique, in part because much of the Wasatch fault is in the late stages of the earthquake cycle, when surface velocity gradients across the fault are low.
UR - http://www.scopus.com/inward/record.url?scp=0141514772&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0141514772&partnerID=8YFLogxK
U2 - 10.1029/2003GL017408
DO - 10.1029/2003GL017408
M3 - Article
AN - SCOPUS:0141514772
SN - 0094-8276
VL - 30
SP - 6-1 - 6-4
JO - Geophysical Research Letters
JF - Geophysical Research Letters
IS - 13
ER -