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Information - SM6 Recent Advances in Earthquake Location: Applications and new techniques
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Event Information |
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Earthquake locations traditionally have been estimated from linearized inversion of individual arrival time picks, using layered seismic velocity models. Earthquake catalogs relied upon single hypocenter locations, or, at best, joint hypocenter determination using raw picks. Uncertainty information was limited to estimates based on RMS minimization with ad-hoc weighting of arrival time errors. But recent advances in computing power, developments of new, non-linear techniques, increasing implementation of three-dimensional velocity models and flexible approaches to station corrections have pushed earthquake location beyond traditional hypocenter estimation. Today, earthquake location may involve cross-correlation time measurements, complex three-dimensional velocity models, determination of high-precision, relative earthquake locations, array processing and semblance techniques, and the definition of multi-dimensional uncertainty volumes using a variety of functional minimization approaches.
In this session, we invite papers that apply or compare new techniques in earthquake location on all scales. We encourage papers that apply new location methods to provide more reliable, routine hypocenter locations, thus increasing the quality of routine earthquake reporting, particularly for non-optimal network configurations. We welcome contributions that concern recent developments in absolute and relative event location methods, in precise, accurate travel-time calculation in 3D models, and in the estimation, representation and interpretation of uncertainties. We also welcome papers on the development of three-dimensional velocity models and adaptive station correction approaches for earthquake location
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Preliminary List of Solicited Speakers |
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 Back to Session Programme
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