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| S-wave attenuation tomography of upper crust in Japan | |
| Pei Shun-Ping; Su Jin-Rong; Gao Xing; Zhao Jun-Meng; Liu Hong-Bing | |
| 通讯作者 | Pei, SP (通讯作者) |
| 发表日期 | 2008 |
| ISSN | 0001-5733 |
| 起始页码 | 828 |
| 结束页码 | 835 |
| 卷号 | 51期号:3 |
| 英文摘要 | Seismic attenuation (Q-factor) can be estimated by extracting the amplitude-frequency information contained in seismic waveforms. We applied M-L amplitude tomography to estimate attenuation of upper crust in Japan. More than 60000 Sg-wave maximum amplitude data from 5559 events recorded by 971 stations were selected from the dense High-Sensitivity Seismographic Network (Hi-net) under the condition that epicentral distance is less than 2 degrees; event depth is less than 10km. The lateral S-wave Q-factor variations of upper crust at 1Hz in Japan were obtained, and the result indicates that the low Q values exist in the central Japan islands, and have almost the same distribution with volcanoes; the low-Q zones also exist in non-volcanic regions at the Kyoto and Kobe prefectures, and eastern Shikoku with dense faults there; in addition, low Q was found between eastern coast and Japan trench. These suggest that the high attenuation (low Q value) results from high temperature, cracked rocks and thick sediment. The high Q values mainly exist between the front of volcanoes and the Japanese east coast. |
| 关键词 | 1997 NORTHWESTERN KAGOSHIMASTRONG GROUND MOTIONSTRUCTURE BENEATHNORTHEASTERN JAPANSOUTHWEST JAPANP-WAVEVOLCANIC FRONTUPPER-MANTLESPECTRAHONSHU |
| 英文关键词 | Japan; seismic attenuation; S-wave; amplitude tomography |
| 语种 | 英语 |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| WOS记录号 | WOS:000256294600023 |
| 来源期刊 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 来源机构 | 中国科学院青藏高原研究所 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/257541 |
| 推荐引用方式 GB/T 7714 | Pei Shun-Ping,Su Jin-Rong,Gao Xing,et al. S-wave attenuation tomography of upper crust in Japan[J]. 中国科学院青藏高原研究所,2008,51(3). |
| APA | Pei Shun-Ping,Su Jin-Rong,Gao Xing,Zhao Jun-Meng,&Liu Hong-Bing.(2008).S-wave attenuation tomography of upper crust in Japan.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,51(3). |
| MLA | Pei Shun-Ping,et al."S-wave attenuation tomography of upper crust in Japan".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 51.3(2008). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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