Quick Search:    advanced search

GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help

This Article Figures Only Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Web of Science (5) Citing Articles via Google Scholar Google Scholar Articles by Tinti, E. Articles by Cocco, M. Search for Related Content GeoRef GeoRef Citation

A Kinematic Source-Time Function Compatible with Earthquake Dynamics

¹ Istituto Nazionale di Geofisica e Vulcanologia
Department of Seismology and Tectonophysics
Via di Vigna Murata 605
00143 Rome, Italy
 (E.T., A.P., M.C.)

² National Research Institute for Earth Science and Disaster Prevention
3-1 Tennodai
305-0006 Tsukuba, Japan
 (E.F.)

We propose a new source-time function, to be used in kinematic modeling of ground-motion time histories, which is consistent with dynamic propagation of earthquake ruptures and makes feasible the dynamic interpretation of kinematic slip models. This function is derived from a source-time function first proposed by Yoffe (1951), which yields a traction evolution showing a slip-weakening behavior. In order to remove its singularity, we apply a convolution with a triangular function and obtain a regularized source-time function called the regularized Yoffe function. We propose a parameterization of this slip-velocity time function through the final slip, its duration, and the duration of the positive slip acceleration (T_acc). Using this analytical function, we examined the relation between kinematic parameters, such as peak slip velocity and slip duration, and dynamic parameters, such as slip-weakening distance and breakdown-stress drop. The obtained scaling relations are consistent with those proposed by Ohnaka and Yamashita (1989) from laboratory experiments. This shows that the proposed source-time function suitably represents dynamic rupture propagation with finite slip-weakening distances.

This article has been cited by other articles:

				V. M. Cruz-Atienza, K. B. Olsen, and L. A. Dalguer Estimation of the Breakdown Slip from Strong-Motion Seismograms: Insights from Numerical Experiments Bulletin of the Seismological Society of America, December 1, 2009; 99(6): 3454 - 3469. [Abstract] [Full Text] [PDF]

				J.-H. Wang Effect of Thermal Pressurization on Radiation Efficiency Bulletin of the Seismological Society of America, August 1, 2009; 99(4): 2293 - 2304. [Abstract] [Full Text] [PDF]

				T. Mikumo and E. Fukuyama Near-Source Released Energy in Relation to Fracture Energy on Earthquake Faults Bulletin of the Seismological Society of America, June 1, 2006; 96(3): 1177 - 1181. [Abstract] [Full Text] [PDF]