Rotational Motions Recorded at Hualien During the 2012 Wutai, Taiwan Earthquake

It is widely accepted that the effects of rotational motions on seismic waves can be neglected when ground motion is small and might be underestimated in near-fault and/or with extremely large ground motions. However, quantitative validation of these assumptions is still needed. During the 2012 Wuta...

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Main Authors: Hung-Chie Chiu, Fang-Ju Wu, Huey-Chu Huang
Format: Article
Language:English
Published: Springer 2013-01-01
Series:Terrestrial, Atmospheric and Oceanic Sciences
Subjects:
Online Access: http://tao.cgu.org.tw/images/attachments/v241p031.pdf
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author Hung-Chie Chiu
Fang-Ju Wu
Huey-Chu Huang
author_facet Hung-Chie Chiu
Fang-Ju Wu
Huey-Chu Huang
author_sort Hung-Chie Chiu
collection DOAJ
description It is widely accepted that the effects of rotational motions on seismic waves can be neglected when ground motion is small and might be underestimated in near-fault and/or with extremely large ground motions. However, quantitative validation of these assumptions is still needed. During the 2012 Wutai earthquake in Taiwan (6.4 ML), a set of small rotation rate-strong motion velocity data was recorded at the HWLB (Hualien) seismographic station. This station is 161 km away from the epicenter and the recorded peak ground acceleration and rotation rate are about 7 cm s-1 s-1 and 0.1 mrad s-1, respectively. This data set is useful for evaluating the lower bound of ground motion that can be neglected regarding the effects of rotational motions.
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spelling doaj.art-df149caf5e08405d92f3e5893d5ee3512022-12-22T03:34:54ZengSpringerTerrestrial, Atmospheric and Oceanic Sciences1017-08392311-76802013-01-0124103110.3319/TAO.2012.10.22.01(T)1109Rotational Motions Recorded at Hualien During the 2012 Wutai, Taiwan EarthquakeHung-Chie ChiuFang-Ju WuHuey-Chu HuangIt is widely accepted that the effects of rotational motions on seismic waves can be neglected when ground motion is small and might be underestimated in near-fault and/or with extremely large ground motions. However, quantitative validation of these assumptions is still needed. During the 2012 Wutai earthquake in Taiwan (6.4 ML), a set of small rotation rate-strong motion velocity data was recorded at the HWLB (Hualien) seismographic station. This station is 161 km away from the epicenter and the recorded peak ground acceleration and rotation rate are about 7 cm s-1 s-1 and 0.1 mrad s-1, respectively. This data set is useful for evaluating the lower bound of ground motion that can be neglected regarding the effects of rotational motions. http://tao.cgu.org.tw/images/attachments/v241p031.pdf Wutai earthquakeRotational motionsStrong motionCentrifugal acceleration
spellingShingle Hung-Chie Chiu
Fang-Ju Wu
Huey-Chu Huang
Rotational Motions Recorded at Hualien During the 2012 Wutai, Taiwan Earthquake
Terrestrial, Atmospheric and Oceanic Sciences
Wutai earthquake
Rotational motions
Strong motion
Centrifugal acceleration
title Rotational Motions Recorded at Hualien During the 2012 Wutai, Taiwan Earthquake
title_full Rotational Motions Recorded at Hualien During the 2012 Wutai, Taiwan Earthquake
title_fullStr Rotational Motions Recorded at Hualien During the 2012 Wutai, Taiwan Earthquake
title_full_unstemmed Rotational Motions Recorded at Hualien During the 2012 Wutai, Taiwan Earthquake
title_short Rotational Motions Recorded at Hualien During the 2012 Wutai, Taiwan Earthquake
title_sort rotational motions recorded at hualien during the 2012 wutai taiwan earthquake
topic Wutai earthquake
Rotational motions
Strong motion
Centrifugal acceleration
url http://tao.cgu.org.tw/images/attachments/v241p031.pdf
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AT fangjuwu rotationalmotionsrecordedathualienduringthe2012wutaitaiwanearthquake
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