Results 141 to 150 of about 353 (168)

Evidence for afterslip on the San Fernando fault

Bulletin of the Seismological Society of America, 1975
Abstract Postearthquake changes in elevation across the Tujunga segment of the San Fernando fault in the period March 1971 to 1973-1974 indicate deformation similar in distribution to, but on a much smaller scale than, the coseismic deformation (the maximum postearthquake uplift is about 60 mm compared to the 2 m of coseismic uplift ...
J. C. Savage, J. P. Church
openaire   +1 more source

Afterslip, Tremor, and the Denali Fault Earthquake

Bulletin of the Seismological Society of America, 2012
We tested the hypothesis that afterslip should be accompanied by tremor using observations of seismic and aseismic deformation surrounding the 2002 M  7.9 Denali fault, Alaska, earthquake (DFE). Afterslip happens more frequently than spontaneous slow slip and has been observed in a wider range of tectonic environments, and thus the existence or absence
J. Gomberg, S. Prejean, N. Ruppert
openaire   +1 more source

Imaging rapid early afterslip of the 2016 Pedernales earthquake, Ecuador

Earth and Planetary Science Letters, 2019
High-Rate (HR) GPS time series following the 2016 Mw 7.8 Pedernales earthquake suggest significant postseismic deformation occurring in the early postseismic period (i.e. first few hours after the earthquake) that is not resolved with daily GPS time series.
Louisa L H Tsang, Mathilde Vergnolle, Cedric Twardzik   +2 more
exaly   +4 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
openaire   +1 more source

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
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
openaire   +1 more source

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

The role of afterslip in the stress interaction between repeating earthquakes and microseismicity in Parkfield

2023
Earthquake can be triggered by small stress changes from local to distant earthquakes, seasonal forcing, and human activities. While the calculated magnitude and sign of stress change greatly varies with the assumption of source stress drop, receiver fault geometry, and consideration of aseismic slip, the near-field stress triggering can be easily ...
Kate Huihsuan Chen, Kaj Johnson, Roland Burgmann, Robert Nadeau   +3 more
openaire   +1 more source

Long‐Term Afterslip of the 2004M 6.0 Parkfield, California, Earthquake—Implications for Forecasting Amount and Duration of Afterslip on Other Major Creeping Faults

Bulletin of the Seismological Society of America, 2017
Abstract We present the longest record of surface afterslip on a continental strike‐slip fault for the 2004 M  6.0 Parkfield, California, earthquake, from which we can derive critical information about the duration and predictability of afterslip relevant to urban displacement hazard applications.
James J. Lienkaemper, Forrest S. McFarland   +1 more
openaire   +1 more source