Premium
Creep along the northern Jordan Valley section of the Dead Sea Fault
Author(s) -
Hamiel Yariv,
Piatibratova Oksana,
Mizrahi Yaakov
Publication year - 2016
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1002/2016gl067913
Subject(s) - geology , fault (geology) , shore , seismology , dead sea , slip (aerodynamics) , section (typography) , structural basin , creep , geomorphology , oceanography , materials science , advertising , business , composite material , physics , thermodynamics
We geodetically investigate the interseismic deformation along two neighboring sections of the Dead Sea Fault in Israel and present first clear evidence for shallow creep along this fault. We obtain the velocities of near‐fault GPS campaign stations across the northern section of the Jordan Valley Fault (JVF) and the Jordan Gorge Section (JGS) that were surveyed each year between 2009 and 2015. The JVF extends from the northern shore of the Dead Sea to the eastern shore of the Sea of Galilee, and the JGS extends from the Sea of Galilee to the Hula Basin. We infer a slip rate of ~4.1 mm/yr and a locking depth of ~10 km for both sections. Data analysis indicates that while the JGS is found to be fully locked above the locking depth, the northern section of the JVF is found to be creeping from a depth of 1.5 ± 1.0 km to the surface, with a creep rate of 2.5 ± 0.8 mm/yr. Our observations also suggest that the current slip rate of the fault at the western margin of the Jordan Valley is minor, less than the GPS velocities uncertainties.