Spatial distribution of static stress drops for aftershocks of the 2005 West Off Fukuoka Prefecture earthquake

Yoshihisa Iio; Hiroshi Katao; Tomotake Ueno; Bogdan Enescu; Norio Hirano; Tomomi Okada; Naoki Uchida; Satoshi Matsumoto; Takeshi Matsushima; Kenji Uehira; Hiroshi Shimizu

doi:10.1186/BF03352670

Spatial distribution of static stress drops for aftershocks of the 2005 West Off Fukuoka Prefecture earthquake

Yoshihisa Iio, Hiroshi Katao, Tomotake Ueno, Bogdan Enescu, Norio Hirano, Tomomi Okada, Naoki Uchida, Satoshi Matsumoto, Takeshi Matsushima, Kenji Uehira, Hiroshi Shimizu

SCI - Research Center for Prediction of Earthquakes and Volcanic Eruptions (RCPEVE)

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

We investigated the spatial distribution of static stress drops of the aftershocks of the 2005 West Off Fukuoka Prefecture earthquake, with the aim of assessing the possibility that another earthquake will occur on the SE extension of the earthquake fault. The waveforms from six temporary online telemetry stations installed in and around the aftershock region were measured. Small stress drops were estimated for the aftershocks that occurred relatively distant from the SE and NE ends of the earthquake fault. Conversely, the aftershocks that occurred around the SE end of aftershock region are characterized by large stress drops. These results imply the possibility of a stress concentration at the SE edge of the main shock fault.

Original language	English
Pages (from-to)	1611-1615
Number of pages	5
Journal	Earth, Planets and Space
Volume	58
Issue number	12
DOIs	https://doi.org/10.1186/BF03352670
Publication status	Published - 2006

Keywords

aftershock
anelastic attenuation
intraplate earthquake
site effect
stress
Stress drop

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10.1186/BF03352670

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title = "Spatial distribution of static stress drops for aftershocks of the 2005 West Off Fukuoka Prefecture earthquake",

abstract = "We investigated the spatial distribution of static stress drops of the aftershocks of the 2005 West Off Fukuoka Prefecture earthquake, with the aim of assessing the possibility that another earthquake will occur on the SE extension of the earthquake fault. The waveforms from six temporary online telemetry stations installed in and around the aftershock region were measured. Small stress drops were estimated for the aftershocks that occurred relatively distant from the SE and NE ends of the earthquake fault. Conversely, the aftershocks that occurred around the SE end of aftershock region are characterized by large stress drops. These results imply the possibility of a stress concentration at the SE edge of the main shock fault.",

keywords = "aftershock, anelastic attenuation, intraplate earthquake, site effect, stress, Stress drop",

author = "Yoshihisa Iio and Hiroshi Katao and Tomotake Ueno and Bogdan Enescu and Norio Hirano and Tomomi Okada and Naoki Uchida and Satoshi Matsumoto and Takeshi Matsushima and Kenji Uehira and Hiroshi Shimizu",

year = "2006",

doi = "10.1186/BF03352670",

language = "English",

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TY - JOUR

T1 - Spatial distribution of static stress drops for aftershocks of the 2005 West Off Fukuoka Prefecture earthquake

AU - Iio, Yoshihisa

AU - Katao, Hiroshi

AU - Ueno, Tomotake

AU - Enescu, Bogdan

AU - Hirano, Norio

AU - Okada, Tomomi

AU - Uchida, Naoki

AU - Matsumoto, Satoshi

AU - Matsushima, Takeshi

AU - Uehira, Kenji

AU - Shimizu, Hiroshi

PY - 2006

Y1 - 2006

N2 - We investigated the spatial distribution of static stress drops of the aftershocks of the 2005 West Off Fukuoka Prefecture earthquake, with the aim of assessing the possibility that another earthquake will occur on the SE extension of the earthquake fault. The waveforms from six temporary online telemetry stations installed in and around the aftershock region were measured. Small stress drops were estimated for the aftershocks that occurred relatively distant from the SE and NE ends of the earthquake fault. Conversely, the aftershocks that occurred around the SE end of aftershock region are characterized by large stress drops. These results imply the possibility of a stress concentration at the SE edge of the main shock fault.

AB - We investigated the spatial distribution of static stress drops of the aftershocks of the 2005 West Off Fukuoka Prefecture earthquake, with the aim of assessing the possibility that another earthquake will occur on the SE extension of the earthquake fault. The waveforms from six temporary online telemetry stations installed in and around the aftershock region were measured. Small stress drops were estimated for the aftershocks that occurred relatively distant from the SE and NE ends of the earthquake fault. Conversely, the aftershocks that occurred around the SE end of aftershock region are characterized by large stress drops. These results imply the possibility of a stress concentration at the SE edge of the main shock fault.

KW - aftershock

KW - anelastic attenuation

KW - intraplate earthquake

KW - site effect

KW - stress

KW - Stress drop

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Spatial distribution of static stress drops for aftershocks of the 2005 West Off Fukuoka Prefecture earthquake

Abstract

Keywords

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