Inferring rate and state friction parameters from a rupture model of the 1995 Hyogo‐ken Nanbu (Kobe) Japan earthquake

Guatteri, M.; Spudich, Paul; Beroza, Gregory C.

doi:10.1029/2001jb000294

Cited by 65 publications

(64 citation statements)

References 54 publications

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“…Our results, in general, are compatible with estimates of G for other large events, not in the Heaton compilation. For example, from seismic inversions, Guatteri et al (2001) estimate 1.5 MJ/m 2 for the 1995 Kobe earthquake, consistent also with Ide (2002); Olsen et al (1997) and Peyrat et al (2001) estimate 5 MJ/m 2 for the 1992 Landers earthquake. The results are also generally consistent with MJ/m 2 range estimates of G for large events from analyses of large earthquake initiation and arrest (Aki, 1979;Li, 1987;Rudnicki and Wu, 1995).…”

Section: Fracture Energy Estimates and Comparisonsmentioning

confidence: 49%

Off-Fault Secondary Failure Induced by a Dynamic Slip Pulse

Rice¹,

Sammis²,

Parsons³

2005

Bulletin of the Seismological Society of America

262

350

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We develop a 2D slip-weakening description of a self-healing slip pulse that propagates dynamically in a steady-state configuration. The model is used to estimate patterns of off-fault secondary failure induced by the rupture, and also to infer fracture energies G for large earthquakes. This extends an analysis for a semiinfinite rupture (Poliakov et al., 2002) to the case of a finite slipping zone length L of the pulse. The dynamic stress drop, when divided by the drop from peak to residual strength, determines the ratio of L to the slip-weakening zone length R. Predicted off-fault damage is controlled by that scaled stress drop, static and dynamic friction coefficients, rupture velocity, principal prestress orientation, and poroelastic Skempton coefficient. All damage zone lengths can be scaled by , which is proportional R* o G/(strength drop) 2 and is the value of R in the low-rupture-velocity, low-stress-drop, limit. In contrast to the Poliakov et al. (2002) case R/L ‫ס‬ 0, the region that supports Coulomb failure reaches a maximum size on the order of when mode II rupture R* o speed approaches the Rayleigh speed. Analysis of slip pulses documented by Heaton (1990) leads to estimates of G, each with a factor-of-two model uncertainty, from 0.1 to 9 MJ/m 2 (including the factor), averaging 2-4 MJ/m 2 ; G tends to increase with the amount of slip in the event. In most cases, secondary faulting should extend, at high rupture speeds, to distances from the principal fault surface on the order of 1 to 2 Ϸ 1-80 m for a 100-MPa strength drop; that distance should vary with depth, R* o being larger near the surface. We also discuss gouge and damage processes.

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Section: Fracture Energy Estimates and Comparisonsmentioning

confidence: 49%

Off-Fault Secondary Failure Induced by a Dynamic Slip Pulse

Rice¹,

Sammis²,

Parsons³

2005

Bulletin of the Seismological Society of America

262

350

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“…Such models can then be used to investigate the seismic rupture process and fault properties, with implications for fault frictional laws, prestress, static stress drop, or dynamic stresses on the ruptured fault (Ide and Takeo, 1997;Bouchon et al, 1998;Guatteri et al, 2001). An outstanding issue is the influence of fault geometry on rupture dynamics.…”

Section: Introductionmentioning

confidence: 99%

Rupture Process of the 1999 Mw 7.1 Duzce Earthquake from Joint Analysis of SPOT, GPS, InSAR, Strong-Motion, and Teleseismic Data: A Supershear Rupture with Variable Rupture Velocity

Konca¹,

Leprince²,

Avouac³

et al. 2010

Bulletin of the Seismological Society of America

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We analyze the rupture process of the 1999 M w 7.1 Duzce earthquake using seismological, remote sensing, and geodetic data. Ground deformation measured from the subpixel cross correlation of Satellite Pour l'Observation de la Terre (SPOT) images reveals a 55 km long fault trace and smooth surface-slip distribution peaking at 3.5-4 m. The westernmost segment overlaps for over 10 km with ruptures from the M w 7.4 Izmit earthquake. The 15 km long easternmost segment, which cuts across mountainous topography, had not been reported previously. We determine a well-constrained source model using a four-segment fault geometry using constraints on surface fault slip and inverting Global Positioning System and Interferometric Synthetic Aperture Radar data along with strong-motion records. Our results show that some variability of the rupture velocity and an eastward supershear velocity are required to fit the strong-motion data. The rise time, up to 6 sec, correlates with cumulative slip, suggesting a sliding velocity of about 1 m=sec. The source model predicts teleseismic waveforms well, although early by 2 sec. This time shift is probably due to the weak beginning of the earthquake that is not observable at teleseismic distances. Strong-motion records are relatively well predicted from a source model derived from the teleseismic data using the fault geometry derived from the satellite images. This study demonstrates the benefit of using accurate fault geometries to determine finite-fault source models.Online Material: Tables of best-fitting dip angles and rupture velocities, and figures showing mutual consistency of derived displacements fields, additional slip and rise-time models, and teleseismic waveform fit.

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“…large slip events are several orders of magnitude different from those estimated in laboratory experiments (see the discussion in Guatteri et al (2001)). The S-wave velocity c s and the rigidity G are assumed to be 3.5 km/s and 34.3 GPa, respectively.…”

Section: Sse Eqmentioning

confidence: 68%

Interval modulation of recurrent slow slip events by two types of earthquake loading

Mitsui

2015

Earth Planet Sp

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Geodetic studies have discovered recurrent spontaneous slow slip events (SSEs) at major faults. The SSE recurrence intervals should reflect stress states at the faults, including load effects of large earthquakes in neighboring areas. Here, we focus on temporal changes of the SSE recurrence intervals. We perform numerical model experiments with the rate-and state-dependent friction in a three-dimensional elastic medium to simulate the SSE recurrence interval changes by the earthquake loading effects. One result is gradual shortening of the SSE recurrence intervals owing to a nucleation process of a nearby large earthquake, as revealed by several previous studies. This effect reflects magnitude of the elastic interaction between the SSE and earthquake areas. As an example, when the distance between the SSE and earthquake areas is almost zero, a short-term rapid decrease of the SSE recurrence intervals precedes the earthquake occurrence (approximately by a decade). The other result is that external stress perturbation, as large as 0.1 MPa, can reduce the SSE recurrence intervals to a similar extent. Furthermore, the interval modulation by the stress perturbation continues for a prolonged period until the occurrence of the adjacent earthquake. Both effects may be observable, as is advancing at the Boso zone, Japan, but their separation is difficult under the present circumstances.

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Inferring rate and state friction parameters from a rupture model of the 1995 Hyogo‐ken Nanbu (Kobe) Japan earthquake

Cited by 65 publications

References 54 publications

Off-Fault Secondary Failure Induced by a Dynamic Slip Pulse

Off-Fault Secondary Failure Induced by a Dynamic Slip Pulse

Rupture Process of the 1999 Mw 7.1 Duzce Earthquake from Joint Analysis of SPOT, GPS, InSAR, Strong-Motion, and Teleseismic Data: A Supershear Rupture with Variable Rupture Velocity

Interval modulation of recurrent slow slip events by two types of earthquake loading

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