Results 181 to 190 of about 2,530 (204)

Viscoelastic relaxation following subduction earthquakes and its effects on afterslip determination

Journal of Geophysical Research: Solid Earth, 2015
AbstractAfterslip is commonly thought to be the controlling process in postseismic deformation immediately following a great megathrust earthquake and is usually inferred from geodetic observations using purely elastic models. However, observed motion reversal of the near‐trench area right after the 2011 Mw 9 Tohoku‐oki earthquake demonstrates the ...
Tianhaozhe Sun, Kelin Wang
exaly   +2 more sources

Afterslip no longer an afterthought

Nature, 1997
Measuring the imperceptible motion of tectonic plates has become possible with sub-centimetre positioning from satellite data. Such measurements show that postseismic creep can release as much energy as violent earthquakes.
openaire   +1 more source

The role of afterslip in driving aftershock sequences

2020
<p>Aftershock sequences following large tectonic earthquakes exhibit considerable spatio-temporal complexity and suggest causative mechanisms beyond co-seismic, elasto-static Coulomb stress changes in the crust. Candidate mechanisms include dynamic triggering and postseismic processes such as viscoelastic relaxation, poroelastic ...
Robert Churchill, Maximilian Werner, Juliet Biggs, Ake Fagereng   +3 more
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Afterslip Behavior following the 2014 M 6.0 South Napa Earthquake with Implications for Afterslip Forecasting on Other Seismogenic Faults

Seismological Research Letters, 2016
ABSTRACT The 24 August 2014 M  6.0 South Napa, California, earthquake exhibited unusually large slip for a California strike‐slip event of its size with a maximum coseismic surface slip of 40–50 cm in the north section of the 15‐km‐long rupture. Although only minor ( M ∼7 earthquake anticipated on the nearby urban Hayward fault.
James J. Lienkaemper, Stephen B. DeLong, Carolyn J. Domrose, Carla M. Rosa   +3 more
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Hey Napa—Your Afterslip Is Showing

Journal AWWA, 2015
In the aftermath of a 6.0‐magnitude earthquake and the ensuing afterslip in Napa, Calif., waterworks employees pulled together to repair leaks and maintain a safe water supply for the city. The experience will help other cities adapt to and even predict damage from future quakes.
openaire   +1 more source

Bulk-friction modeling of afterslip and the modified Omori law

Tectonophysics, 1997
Abstract Afterslip data from the Superstition Hills fault in southern California, a creep event on the same fault, the modified Omori law, and cumulative moments from aftershocks of the 1957 Aleutian Islands earthquake all indicate that the original formulation by Dieterich (1981) [Constitutive properties of faults with simulated gouge. AGU, Geophys.
Leif Wennerberg, Robert V. Sharp
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Geodetic inference on decadal afterslip following the 2011 Tohoku-oki earthquake

2022
<p>The postseismic deformation in the aftermath of the 2011 Tohoku-oki earthquake showed a stronger surface movement in northeastern Japan (NE) with subsequent decays over time. In response to the coseismic stress perturbation, afterslip on the megathrust interface is held responsible for the short-term deformation while viscoelastic ...
Sambuddha Dhar, Jun Muto
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Enigmatic upper-plate sliver transport paused by megathrust earthquake and afterslip

Earth and Planetary Science Letters, 2019
Abstract How does deformation after an earthquake affect megathrust stresses? Five years of surface velocities following the 2012 moment magnitude 7.6 Nicoya, Costa Rica earthquake uniquely capture the lithospheric recovery. During a four-year period, seaward afterslip transitions to relocked, landward interseismic motion that matches the velocity ...
T.E. Hobbs, A.V. Newman, M. Protti
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AFTERSLIP of 6 FEBRUARY 2023 KAHRAMANMARAS EARTHQUAKE SEQUENCE : PRELIMINARY RESULTS

The Mw 7.8 earthquake of 2023 ruptured the southern (main) branch of the East Anatolian Fault (EAF), followed by the Mw 7.6 earthquake on the northern (Çardak Fault) branch of the EAF nine hours later. In March, we installed ten carbon-rod extensometers across segments of the main and northern branches of the ruptured faults, where potential ...
Efe T. Ayruk, Muhammed Turğut, İlay Farımaz, Mehmet Köküm, Roger Bilham, Uğur Doğan   +5 more
openaire   +2 more sources

Fault movement (afterslip) following the Guatemala earthquake of February 4, 1976

Geology, 1978
Field studies of surface faulting associated with the Guatemala earthquake of February 4, 1976, have documented the occurrence of afterslip at seven locations along the 230 km of surface rupture. The total displacement across the fault as measured in April 1976 averaged 110 cm.
R. C. Bucknam, George Plafker, R. V. Sharp   +2 more
openaire   +1 more source