New Attenuation Relationship for Peak Ground and Pseudo-Spectral Acceleration of Normal-Faulting Earthquakes in Offshore Northeast Taiwan
Ground motions from normal-faulting earthquakes are generally considered to be smaller than those of strike-slip and thrust events. On 11 April 2011 a crustal normal-faulting earthquake [the Fukushima earthquake (Mw 6.6)] occurred in Eastern Japan. The peak ground acceleration (PGA) observed was con...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Springer
2016-02-01
|
| Series: | Terrestrial, Atmospheric and Oceanic Sciences |
| Subjects: | |
| Online Access: | http://tao.cgu.org.tw/index.php/articles/archive/geophysics/item/download/2086_0dfd143eba10cc560ab596574f5af338 |
| _version_ | 1818535020289064960 |
|---|---|
| author | Yu-Ju Wang Ya-Ting Lee Kuo-Fong Ma Yuan-Chieh Wu |
| author_facet | Yu-Ju Wang Ya-Ting Lee Kuo-Fong Ma Yuan-Chieh Wu |
| author_sort | Yu-Ju Wang |
| collection | DOAJ |
| description | Ground motions from normal-faulting earthquakes are generally considered to be smaller than those of strike-slip and thrust events. On 11 April 2011 a crustal normal-faulting earthquake [the Fukushima earthquake (Mw 6.6)] occurred in Eastern Japan. The peak ground acceleration (PGA) observed was considerably higher than the predictions of several ground-motion prediction equations (GMPEs), which were derived mainly from thrust or strike-slip earthquakes. In northeast Taiwan, the tectonic structure of the Ryukyu Arc and the Okinawa Trough typically entail normal-faulting earthquakes. Because of the normal-faulting earthquakes relevance to ground motions and nuclear power plant sites in northeast Taiwan, we evaluated the impact of the ground motion of normal-faulting earthquakes in offshore northeast Taiwan using a newly constructed attenuation relationship for PGA and pseudo-spectral acceleration (Sa). We collected 832 records from 13 normal-faulting earthquakes with focal depths of less than 50 km. The moment magnitude (Mw) of the 13 events was between 4 - 6. The Sa and PGA of normal-faulting earthquakes offshore northeast Taiwan determined with the newly constructed attenuation relationship were higher and lower, respectively, than those obtained using attenuation equations commonly used in the Taiwan subduction zone. |
| first_indexed | 2024-12-11T18:19:15Z |
| format | Article |
| id | doaj.art-c9584ec1b0f7433fa51a3f3a717e6782 |
| institution | Directory Open Access Journal |
| issn | 1017-0839 1017-0839 |
| language | English |
| last_indexed | 2024-12-11T18:19:15Z |
| publishDate | 2016-02-01 |
| publisher | Springer |
| record_format | Article |
| series | Terrestrial, Atmospheric and Oceanic Sciences |
| spelling | doaj.art-c9584ec1b0f7433fa51a3f3a717e67822022-12-22T00:55:20ZengSpringerTerrestrial, Atmospheric and Oceanic Sciences1017-08391017-08392016-02-01271435810.3319/TAO.2015.08.17.01(T)New Attenuation Relationship for Peak Ground and Pseudo-Spectral Acceleration of Normal-Faulting Earthquakes in Offshore Northeast TaiwanYu-Ju WangYa-Ting LeeKuo-Fong MaYuan-Chieh WuGround motions from normal-faulting earthquakes are generally considered to be smaller than those of strike-slip and thrust events. On 11 April 2011 a crustal normal-faulting earthquake [the Fukushima earthquake (Mw 6.6)] occurred in Eastern Japan. The peak ground acceleration (PGA) observed was considerably higher than the predictions of several ground-motion prediction equations (GMPEs), which were derived mainly from thrust or strike-slip earthquakes. In northeast Taiwan, the tectonic structure of the Ryukyu Arc and the Okinawa Trough typically entail normal-faulting earthquakes. Because of the normal-faulting earthquakes relevance to ground motions and nuclear power plant sites in northeast Taiwan, we evaluated the impact of the ground motion of normal-faulting earthquakes in offshore northeast Taiwan using a newly constructed attenuation relationship for PGA and pseudo-spectral acceleration (Sa). We collected 832 records from 13 normal-faulting earthquakes with focal depths of less than 50 km. The moment magnitude (Mw) of the 13 events was between 4 - 6. The Sa and PGA of normal-faulting earthquakes offshore northeast Taiwan determined with the newly constructed attenuation relationship were higher and lower, respectively, than those obtained using attenuation equations commonly used in the Taiwan subduction zone.http://tao.cgu.org.tw/index.php/articles/archive/geophysics/item/download/2086_0dfd143eba10cc560ab596574f5af338GMPENormal-faultingAttenuationPGASaTaiwan |
| spellingShingle | Yu-Ju Wang Ya-Ting Lee Kuo-Fong Ma Yuan-Chieh Wu New Attenuation Relationship for Peak Ground and Pseudo-Spectral Acceleration of Normal-Faulting Earthquakes in Offshore Northeast Taiwan Terrestrial, Atmospheric and Oceanic Sciences GMPE Normal-faulting Attenuation PGA Sa Taiwan |
| title | New Attenuation Relationship for Peak Ground and Pseudo-Spectral Acceleration of Normal-Faulting Earthquakes in Offshore Northeast Taiwan |
| title_full | New Attenuation Relationship for Peak Ground and Pseudo-Spectral Acceleration of Normal-Faulting Earthquakes in Offshore Northeast Taiwan |
| title_fullStr | New Attenuation Relationship for Peak Ground and Pseudo-Spectral Acceleration of Normal-Faulting Earthquakes in Offshore Northeast Taiwan |
| title_full_unstemmed | New Attenuation Relationship for Peak Ground and Pseudo-Spectral Acceleration of Normal-Faulting Earthquakes in Offshore Northeast Taiwan |
| title_short | New Attenuation Relationship for Peak Ground and Pseudo-Spectral Acceleration of Normal-Faulting Earthquakes in Offshore Northeast Taiwan |
| title_sort | new attenuation relationship for peak ground and pseudo spectral acceleration of normal faulting earthquakes in offshore northeast taiwan |
| topic | GMPE Normal-faulting Attenuation PGA Sa Taiwan |
| url | http://tao.cgu.org.tw/index.php/articles/archive/geophysics/item/download/2086_0dfd143eba10cc560ab596574f5af338 |
| work_keys_str_mv | AT yujuwang newattenuationrelationshipforpeakgroundandpseudospectralaccelerationofnormalfaultingearthquakesinoffshorenortheasttaiwan AT yatinglee newattenuationrelationshipforpeakgroundandpseudospectralaccelerationofnormalfaultingearthquakesinoffshorenortheasttaiwan AT kuofongma newattenuationrelationshipforpeakgroundandpseudospectralaccelerationofnormalfaultingearthquakesinoffshorenortheasttaiwan AT yuanchiehwu newattenuationrelationshipforpeakgroundandpseudospectralaccelerationofnormalfaultingearthquakesinoffshorenortheasttaiwan |