کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4742393 | 1641569 | 2009 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
GRiD MT (grid-based real-time determination of moment tensors) monitoring the long-period seismic wavefield
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فیزیک زمین (ژئو فیزیک)
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چکیده انگلیسی
We have developed and implemented a new grid-based earthquake analysis system that continuously monitors long-period seismic wavefield of 20-50Â s recorded by broadband seismometers. The new analysis system automatically and simultaneously determines the origin time, location and seismic moment tensor of seismic events within 3Â min of their occurrence. This system has been in operation since 2003 at the Earthquake Research Institute (http://wwweic.eri.u-tokyo.ac.jp/GRiD MT/), and the locations and origin times are usually obtained within 3Â s and 20Â km away from the earthquake catalog values determined by the Japan Meteorological Agency (JMA). In addition, moment tensor solutions are comparable to the network solutions manually obtained. This new system should enable us to monitor long-period seismic wavefield continuously further to help identifying long-period (or low-frequency) events which are undetectable by the conventional monitoring of short-period seismic wavefields.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics of the Earth and Planetary Interiors - Volume 175, Issues 1â2, June 2009, Pages 8-16
Journal: Physics of the Earth and Planetary Interiors - Volume 175, Issues 1â2, June 2009, Pages 8-16
نویسندگان
Hiroshi Tsuruoka, Hitoshi Kawakatsu, Taku Urabe,