Application of different signal analysis methods to the ULF data for the 1993 Guam earthquake

Application of different signal analysis methods to the ULF data for the 1993 Guam earthquake

Two different analysis methods; (1) mono-fractal analysis (based on Higuchi method) and (2) flicker noise spectroscopy, have been applied to the same ULF (frequency less than 10 Hz) electromagnetic data observed at Guam during 3 years including the 1993 August Guam earthquake. The results by these t...

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Bibliographic Details
Main Authors: Y. Ida, M. Hayakawa, S. Timashev
Format: Article
Language:English
Published: Copernicus Publications 2007-08-01
Series:Natural Hazards and Earth System Sciences
Online Access:http://www.nat-hazards-earth-syst-sci.net/7/479/2007/nhess-7-479-2007.pdf
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spelling doaj-d08159ce4a2d4938972faa0c7560a2cb2020-11-24T21:32:41ZengCopernicus PublicationsNatural Hazards and Earth System Sciences1561-86331684-99812007-08-0174479484Application of different signal analysis methods to the ULF data for the 1993 Guam earthquakeY. IdaM. HayakawaS. TimashevTwo different analysis methods; (1) mono-fractal analysis (based on Higuchi method) and (2) flicker noise spectroscopy, have been applied to the same ULF (frequency less than 10 Hz) electromagnetic data observed at Guam during 3 years including the 1993 August Guam earthquake. The results by these two methods are found to be very consistent with each other; that is, some precursory effects seem to start about 3 months before the earthquake. This gives us a strong support to the self-organizing critical process before the Guam earthquake. http://www.nat-hazards-earth-syst-sci.net/7/479/2007/nhess-7-479-2007.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Y. Ida
M. Hayakawa
S. Timashev
spellingShingle Y. Ida
M. Hayakawa
S. Timashev
Application of different signal analysis methods to the ULF data for the 1993 Guam earthquake
Natural Hazards and Earth System Sciences
author_facet Y. Ida
M. Hayakawa
S. Timashev
author_sort Y. Ida
title Application of different signal analysis methods to the ULF data for the 1993 Guam earthquake
title_short Application of different signal analysis methods to the ULF data for the 1993 Guam earthquake
title_full Application of different signal analysis methods to the ULF data for the 1993 Guam earthquake
title_fullStr Application of different signal analysis methods to the ULF data for the 1993 Guam earthquake
title_full_unstemmed Application of different signal analysis methods to the ULF data for the 1993 Guam earthquake
title_sort application of different signal analysis methods to the ulf data for the 1993 guam earthquake
publisher Copernicus Publications
series Natural Hazards and Earth System Sciences
issn 1561-8633
1684-9981
publishDate 2007-08-01
description Two different analysis methods; (1) mono-fractal analysis (based on Higuchi method) and (2) flicker noise spectroscopy, have been applied to the same ULF (frequency less than 10 Hz) electromagnetic data observed at Guam during 3 years including the 1993 August Guam earthquake. The results by these two methods are found to be very consistent with each other; that is, some precursory effects seem to start about 3 months before the earthquake. This gives us a strong support to the self-organizing critical process before the Guam earthquake.
url http://www.nat-hazards-earth-syst-sci.net/7/479/2007/nhess-7-479-2007.pdf
work_keys_str_mv AT yida applicationofdifferentsignalanalysismethodstotheulfdataforthe1993guamearthquake
AT mhayakawa applicationofdifferentsignalanalysismethodstotheulfdataforthe1993guamearthquake
AT stimashev applicationofdifferentsignalanalysismethodstotheulfdataforthe1993guamearthquake
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