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Site Response of Seismic Stations in Western Anhui Province from Microtremor HVSR Method
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Zhi ZHOU1, 2, Xilei ZHAO1, Aijun LONG1, Dong FAN1, 3, Fangyu TAO1, Yingjie SHI4
Journal of Geodesy and Geodynamics | 2025, 45(6) : 649 - 653
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Journal of Geodesy and Geodynamics | 2025, 45(6): 649-653
Site Response of Seismic Stations in Western Anhui Province from Microtremor HVSR Method
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Zhi ZHOU1, 2, Xilei ZHAO1, Aijun LONG1, Dong FAN1, 3, Fangyu TAO1, Yingjie SHI4
Affiliations
  • 1 Anhui Earthquake Agency, 558 West-Changjiang Road, Hefei 230031, China
  • 2 Anhui Key Laboratory of Subsurface Exploration and Earthquake Hazard Risk Prevention(in Prep), 558 West-Changjiang Road, Hefei 230031, China
  • 3 Anhui Mengcheng National Geophysical Observatory, Xiaojian Town, Mengcheng County, Bozhou 33527, China
  • 4 Lu'an Earthquake Agency, 662 West-Longhe Road, Lu'an 237010, China

    • ZHOU Zhi, engineer, majors in earthquake monitoring and prediction, E-mail:

About Author:

ZHOU Zhi, engineer, majors in earthquake monitoring and prediction, E-mail:

Published: 2025-06-15 doi: 10.14075/j.jgg.2024.07.331
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The microtremor noise data of 24 stations in the western Anhui region are used to calculate site response based on HVSR method. The results showed that 4 out of 24 stations had abnormal HVSR curves due to observation system failures. All 20 stations have varying degrees of amplification(attenuation) effects, with 4 stations showing flat HVSR curves in the 0.5 Hz to 30 Hz frequency band and site response values of 1 to 2 times. The HVSR curves of the remaining 16 stations exhibit both unimodal and complex bimodal and multimodal shapes, with peak frequencies ranging from 8.5 Hz to 30 Hz, an average of 18.8 Hz, a median of 17.9 Hz, and a standard deviation of 5.66 Hz. The overall trend is relatively large, possibly due to the installation of seismometers on pendulum piers, which reduces the influence of sedimentary layers on measurement results; The peak amplitude ranges from 2.6 to 10.5 times, with an average of 6.0 times, a median of 5.3 times, and a standard deviation of 2.3 times. This may be due to the fact that surface seismometers are more susceptible to surface conditions.

microtremor  /  HVSR method  /  west Anhui region  /  site response
周志, 赵希磊, 隆爱军, 樊冬, 陶方宇, 石英杰. 利用微动HVSR方法分析皖西地区台站场地响应. 大地测量与地球动力学, 2025 , 45 (6) : 649 -653 . DOI: 10.14075/j.jgg.2024.07.331
Zhi ZHOU, Xilei ZHAO, Aijun LONG, Dong FAN, Fangyu TAO, Yingjie SHI. Site Response of Seismic Stations in Western Anhui Province from Microtremor HVSR Method[J]. Journal of Geodesy and Geodynamics, 2025 , 45 (6) : 649 -653 . DOI: 10.14075/j.jgg.2024.07.331
Funding
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  • Youth Research Project on Earthquake Science of Anhui Earthquake Agency(2023QN04)
  • Special Project for AI Monitoring and Research Team of Non-Natural Earthquakes
Appendix
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Year 2025 volume 45 Issue 6
23
8
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Article Info
doi: 10.14075/j.jgg.2024.07.331
  • Receive Date：2024-07-09
  • Online Date：2026-10-30
  • Published：2025-06-15
Article Data
Affiliations
History
  • Received：2024-07-09
Funding
Youth Research Project on Earthquake Science of Anhui Earthquake Agency(2023QN04)
Special Project for AI Monitoring and Research Team of Non-Natural Earthquakes
Affiliations
    1 Anhui Earthquake Agency, 558 West-Changjiang Road, Hefei 230031, China
    2 Anhui Key Laboratory of Subsurface Exploration and Earthquake Hazard Risk Prevention(in Prep), 558 West-Changjiang Road, Hefei 230031, China
    3 Anhui Mengcheng National Geophysical Observatory, Xiaojian Town, Mengcheng County, Bozhou 33527, China
    4 Lu'an Earthquake Agency, 662 West-Longhe Road, Lu'an 237010, China
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https://castjournals.cast.org.cn/joweb/ddcl/EN/10.14075/j.jgg.2024.07.331
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表12种不同金属材料的力学参数
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Number of
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Number of
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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