Waveform cross correlation applied to earthquakes in the Atlantic Ocean
We assess the level of cross correlation between P-waves generated by earthquakes in the Atlantic Ocean and measured by 22 array stations of the International Monitoring System (IMS). There are 931 events with 6,411 arrivals in 2011 and 2012. Station TORD was the most sensitive and detected 868 from...
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ftdatacite:10.48550/arxiv.1307.0520 2023-05-15T17:33:29+02:00 Waveform cross correlation applied to earthquakes in the Atlantic Ocean Bobrov, Dmitry Kitov, Ivan Rozhkov, Mikhail 2013 https://dx.doi.org/10.48550/arxiv.1307.0520 https://arxiv.org/abs/1307.0520 unknown arXiv arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Geophysics physics.geo-ph FOS Physical sciences Preprint Article article CreativeWork 2013 ftdatacite https://doi.org/10.48550/arxiv.1307.0520 2022-04-01T13:10:49Z We assess the level of cross correlation between P-waves generated by earthquakes in the Atlantic Ocean and measured by 22 array stations of the International Monitoring System (IMS). There are 931 events with 6,411 arrivals in 2011 and 2012. Station TORD was the most sensitive and detected 868 from 931 events. We constructed several 931 by 931 matrices of cross correlation coefficients (CCs) for individual stations and also for average and cumulative CCs. These matrices characterize the detection performance of the involved stations and the IMS. Sixty earthquakes located in the northern hemisphere were selected as master events for signal detection and building of events populating a cross correlation Standard Event List (XSEL) for the first halves of 2009 and 2012. High-quality signals (SNR>5.0) recorded by 10 most sensitive stations were used as waveform templates. In order to quantitatively estimate the gain in the completeness and resolution of the XSEL we compared it with the Reviewed Event Bulletin (REB) of the International Data Centre (IDC) for the North Atlantic (NA) and with the ISC Bulletin. Machine learning and classification algorithms were successfully applied to automatically reject invalid events in the XSEL for 2009. Report North Atlantic DataCite Metadata Store (German National Library of Science and Technology) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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Geophysics physics.geo-ph FOS Physical sciences |
spellingShingle |
Geophysics physics.geo-ph FOS Physical sciences Bobrov, Dmitry Kitov, Ivan Rozhkov, Mikhail Waveform cross correlation applied to earthquakes in the Atlantic Ocean |
topic_facet |
Geophysics physics.geo-ph FOS Physical sciences |
description |
We assess the level of cross correlation between P-waves generated by earthquakes in the Atlantic Ocean and measured by 22 array stations of the International Monitoring System (IMS). There are 931 events with 6,411 arrivals in 2011 and 2012. Station TORD was the most sensitive and detected 868 from 931 events. We constructed several 931 by 931 matrices of cross correlation coefficients (CCs) for individual stations and also for average and cumulative CCs. These matrices characterize the detection performance of the involved stations and the IMS. Sixty earthquakes located in the northern hemisphere were selected as master events for signal detection and building of events populating a cross correlation Standard Event List (XSEL) for the first halves of 2009 and 2012. High-quality signals (SNR>5.0) recorded by 10 most sensitive stations were used as waveform templates. In order to quantitatively estimate the gain in the completeness and resolution of the XSEL we compared it with the Reviewed Event Bulletin (REB) of the International Data Centre (IDC) for the North Atlantic (NA) and with the ISC Bulletin. Machine learning and classification algorithms were successfully applied to automatically reject invalid events in the XSEL for 2009. |
format |
Report |
author |
Bobrov, Dmitry Kitov, Ivan Rozhkov, Mikhail |
author_facet |
Bobrov, Dmitry Kitov, Ivan Rozhkov, Mikhail |
author_sort |
Bobrov, Dmitry |
title |
Waveform cross correlation applied to earthquakes in the Atlantic Ocean |
title_short |
Waveform cross correlation applied to earthquakes in the Atlantic Ocean |
title_full |
Waveform cross correlation applied to earthquakes in the Atlantic Ocean |
title_fullStr |
Waveform cross correlation applied to earthquakes in the Atlantic Ocean |
title_full_unstemmed |
Waveform cross correlation applied to earthquakes in the Atlantic Ocean |
title_sort |
waveform cross correlation applied to earthquakes in the atlantic ocean |
publisher |
arXiv |
publishDate |
2013 |
url |
https://dx.doi.org/10.48550/arxiv.1307.0520 https://arxiv.org/abs/1307.0520 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1307.0520 |
_version_ |
1766132018015371264 |