Source Parameters of Seven Large Australian Earthquakes Determined By Body Waveform Inversion
نویسندگان
چکیده
منابع مشابه
W phase source inversion for moderate to large earthquakes (19902010)
Zacharie Duputel,1 Luis Rivera,2 Hiroo Kanamori1 and Gavin Hayes3 1Seismological Laboratory, California Institute of Technology, Pasadena, CA, USA. E-mail: [email protected] 2Institut de Physique du Globe de Strasbourg, IPGS UMR 7516, CNRS and Université de Strasbourg (EOST), France 3U.S. Geological Survey, National Earthquake Information Center (contracted by Synergetics, Inc.), Golden,...
متن کاملSource synthesis for waveform inversion
Seismologists have long used extended sources, both physical and synthetic, to enhance the effectiveness of data acquisition and processing in various ways. Recently, extended synthetic sources have been suggested as a means to to substantially reduce the computational complexity of waveform inversion. Most proposed synthetic sources for waveform inversion are random in some way. In contrast, I...
متن کاملMulti-source Waveform Inversion with Deblurring
The theory of preconditioned multi-source waveform inversion is presented where many shot gathers are simultaneously back-propagated to form the gradient of the misfit function. The implication is that, relative to standard waveform inversion, an order of magnitude increase in computational efficiency can be achieved by multi-source waveform inversion. INTRODUCTION Time-domain waveform inversio...
متن کاملAcoustic Multi-source Waveform Inversion with Deblurring
The theory of preconditioned multi-source waveform inversion is presented where many shot gathers are simultaneously back-propagated to form the multisource gradient of the misfit function. Synthetic tests on 2D Marmousi model data show that multi-source waveform inversion using an encoded multi-source deblurring filter as a preconditioner can provide a good inverted model but with less computa...
متن کاملDepths of Large Earthquakes Determined From Long-Period Rayleigh Waves
The depths and source mechanisms of nine large shallow earthquakes were determined from long-period (150 to 300 s) Rayleigh waves recorded by the Global Digital Seismograph Network (GDSN) and International Deployment of Accelerometers (IDA) networks. We inverted the data set of complex source spectra for a moment tensor (linear) or a double couple (nonlinear). By solving a least squares problem...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 1988
ISSN: 0956-540X,1365-246X
DOI: 10.1111/j.1365-246x.1988.tb00446.x