Depth extent of damage zones around the central Calaveras fault from waveform analysis of repeating earthquakes
作者： Peng Zhao , Zhigang Peng
DOI: 10.1111/J.1365-246X.2009.04385.X
关键词:
摘要: SUMMARY We systematically investigate spatial variations of temporal changes and depth extent damage zones along the Calaveras fault that ruptured during 1984 Morgan Hill earthquake by waveform analysis 333 sets repeating earthquakes. We use a sliding window cross-correlation technique to measure traveltime in waveforms generated each cluster. find clear delays S- early S-coda waves for events immediately after main shock. The amplitudes time decrease logarithmically with since shock, indicating time-dependent recovery (healing) process following abrupt coseismic changes. largest are observed at station CCO is closest rupture zone this larger clusters top 6 km, depth. In comparison, other five stations much smaller, do not show relationship hypocentral suggest these mostly occur few hundred metres near-surface layers, while likely associated around well developed kilometres upper crust. Our results consistent inference widespread non-linearity layers strong ground motions nearby large earthquakes, localized damages flower-type structures active faults based on previous studies recent 3-D numerical simulations.
oup.com
harvard.edu
sci-hub.se 参考文章(88)
Adam D. Fischer, Zhigang Peng, Charles G. Sammis, Dynamic triggering of high-frequency bursts by strong motions during the 2004 Parkfield earthquake sequence Geophysical Research Letters. ,vol. 35, pp. n/a- n/a ,(2008) , 10.1029/2008GL033905
Norman H. Sleep, Shuo Ma, Production of brief extreme ground acceleration pulses by nonlinear mechanisms in the shallow subsurface Geochemistry Geophysics Geosystems. ,vol. 9, ,(2008) , 10.1029/2007GC001863
Shuo Ma, A physical model for widespread near-surface and fault zone damage induced by earthquakes Geochemistry, Geophysics, Geosystems. ,vol. 9, pp. n/a- n/a ,(2008) , 10.1029/2008GC002231
Justin L. Rubinstein, Gregory C. Beroza, Depth constraints on nonlinear strong ground motion from the 2004 Parkfield earthquake Geophysical Research Letters. ,vol. 32, pp. n/a- n/a ,(2005) , 10.1029/2005GL023189
Frédérique Rolandone, Roland Bürgmann, RM Nadeau, None, The evolution of the seismic-aseismic transition during the earthquake cycle: Constraints from the time-dependent depth distribution of aftershocks Geophysical Research Letters. ,vol. 31, ,(2004) , 10.1029/2004GL021379
William Menke, Using waveform similarity to constrain earthquake locations Bulletin of the Seismological Society of America. ,vol. 89, pp. 1143- 1146 ,(1999)
Justin L. Rubinstein, Gregory C. Beroza, Nonlinear strong ground motion in the ML5.4 Chittenden earthquake: Evidence that preexisting damage increases susceptibility to further damage Geophysical Research Letters. ,vol. 31, ,(2004) , 10.1029/2004GL021357
Takeshi Nishimura, Satoru Tanaka, Teruo Yamawaki, Hidekazu Yamamoto, Takashi Sano, Minemori Sato, Hisashi Nakahara, Naoki Uchida, Shuichiro Hori, Haruo Sato, Temporal changes in seismic velocity of the crust around Iwate volcano, Japan, as inferred from analyses of repeated active seismic experiment data from 1998 to 2003 Earth, Planets and Space. ,vol. 57, pp. 491- 505 ,(2005) , 10.1186/BF03352583
Paul A. Johnson, Xiaoping Jia, Nonlinear dynamics, granular media and dynamic earthquake triggering Nature. ,vol. 437, pp. 871- 874 ,(2005) , 10.1038/NATURE04015
Yi Zhou, Karen C. McNally, Thorne Lay, Analysis of the 1986 Mt. Lewis, California, earthquake: preshock sequence-mainshock-aftershock sequence Physics of the Earth and Planetary Interiors. ,vol. 75, pp. 267- 288 ,(1993) , 10.1016/0031-9201(93)90005-T