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Study on Local Magnitude Deviations in Fujian
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Yang GUO1, Jun LI1, Xing JIN1, Binhua LIN1, Huiteng CAI1, *
Journal of Geodesy and Geodynamics | 2025, 45(3) : 266 - 272
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Journal of Geodesy and Geodynamics | 2025, 45(3): 266-272
Study on Local Magnitude Deviations in Fujian
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Yang GUO1, Jun LI1, Xing JIN1, Binhua LIN1, Huiteng CAI1, *
Affiliations
  • 1 Fujian Earthquake Agency, 7 Huahong Road, Fuzhou 350003, China

    • GUO Yang, engineer, majors in seismology and earthquake engineering, E-mail:

About Author:

GUO Yang, engineer, majors in seismology and earthquake engineering, E-mail:

Published: 2025-03-15 doi: 10.14075/j.jgg.2024.04.183
Outline
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Based on the catalogue data from Fujian digital seismic network, a total of 3 720 earthquakes that occurred in Fujian from 2010 to 2023 are selected to study the local magnitude (ML) deviations. The magnitude residual method is used to obtain a new calibration function (R3(Δ)), station correction values (Sj) and medium propagation direction correction values (Sθ) which are applicable to Fujian, enhancing the accuracy of local magnitude measurement. The results indicate that standard deviation of magnitude deviations decreases from 0.29 to 0.19 after correction. In order to improve the accuracy of earthquake warning magnitude measurement, we apply the first station's magnitude, resulting in the standard deviation of magnitude deviations decreases from 0.31 to 0.25. It is evident that the new calibration function, station correction values and medium propagation direction correction values exhibit strong practicality in Fujian.

magnitude deviations  /  calibration function  /  station correction values  /  medium propagation direction correction values  /  magnitude residual method
郭阳, 李军, 金星, 林彬华, 蔡辉腾. 福建地区近震震级偏差研究. 大地测量与地球动力学, 2025 , 45 (3) : 266 -272 . DOI: 10.14075/j.jgg.2024.04.183
Yang GUO, Jun LI, Xing JIN, Binhua LIN, Huiteng CAI. Study on Local Magnitude Deviations in Fujian[J]. Journal of Geodesy and Geodynamics, 2025 , 45 (3) : 266 -272 . DOI: 10.14075/j.jgg.2024.04.183
Funding
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  • National Natural Science Foundation of China(42104062)
  • Scientific Research Project of Fujian Earthquake Agency(M202302)
Appendix
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Year 2025 volume 45 Issue 3
22
8
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Article Info
doi: 10.14075/j.jgg.2024.04.183
  • Receive Date：2024-04-18
  • Online Date：2026-10-30
  • Published：2025-03-15
Article Data
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History
  • Received：2024-04-18
Funding
National Natural Science Foundation of China(42104062)
Scientific Research Project of Fujian Earthquake Agency(M202302)
Affiliations
    1 Fujian Earthquake Agency, 7 Huahong Road, Fuzhou 350003, China
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https://castjournals.cast.org.cn/joweb/ddcl/EN/10.14075/j.jgg.2024.04.183
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
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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