中国及其毗邻地区百年历史地震数据集

在汇集整理1900-2013年间发生在中国及其毗邻地区的4级及其以上地震资料基础上，通过对其中47个地表破裂带较长的7级及其以上大震的分段分析，反演形变场模型分析，估算研究区域的地震矩亏损，并从中扣除10%的非震形变等计算方法，得到中国及其毗邻地区百年历史地震数据集。该数据集包括：（1）1900-2013年中国及其毗邻地区发生的1152个4级及以上地震的参数数据（包括地理位置、震源深度、走向、倾角、滑动角、地震矩、震级、发震时间等）；（2）利用地震资料、第四纪活断层资料和GPS资料反演的中国及其毗邻地区的应变率场模拟数据；（3）利用反演的应变率场模拟数据和原始地震数据计算的中国及其毗邻地区的剩余应变率和剩余地震矩率数据；（4）中国及其毗邻地区的47个7级以上大震按照其地表破裂和位移分布的分段结果数据；（5）利用形变场模型和分段后的历史地震数据计算的剩余应变率数据和地震矩亏损和盈余数据。该数据存储为.dat, .shp 和.kmz数据格式，压缩后数据量为1.10MB。该数据集的分析研究成果发表在《地球物理学进展》2015年30卷第6期。This century-long historical seismic dataset of China and its adjacent regions was developed based on the compilation of seismic data for earthquakes with magnitude ≥ M4 occurring in the region between 1900 and 2013. The development involved segmented analysis of 47 major earthquakes (M≥7) with long surface rupture zones, inversion of deformation field models, estimation of seismic moment deficit in the study area, and subtraction of 10% of non-seismic deformation from the calculated results. The dataset contains the following contents: (1) Parameter data of 1152 earthquakes with magnitude ≥ M4 occurring in China and its adjacent regions during 1900–2013, including geographic location, focal depth, strike, dip, slip angle, seismic moment, magnitude, origin time and other relevant parameters; (2) Strain rate field simulation data of China and its adjacent regions, inverted using seismic data, Quaternary active fault data and GPS data; (3) Residual strain rate and residual seismic moment rate data of China and its adjacent regions, calculated using the inverted strain rate field simulation data and original seismic data; (4) Segmented result data of 47 major earthquakes (M≥7) in China and its adjacent regions, classified based on their surface rupture and displacement distribution; (5) Residual strain rate data, seismic moment deficit and surplus data of China and its adjacent regions, calculated using deformation field models and segmented historical seismic data. The dataset is stored in .dat, .shp and .kmz formats, with a compressed size of 1.10 MB. The research findings based on this dataset were published in *Progress in Geophysics*, Volume 30, Issue 6, 2015.

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背景概述

该数据集汇集了1900-2013年间中国及其毗邻地区4级及以上历史地震资料，包含1152个地震的参数、应变率场模拟、剩余应变率及47个7级以上大震的分段分析等数据。数据通过反演形变场模型等方法计算了地震矩亏损和盈余，旨在支持区域地震危险性评估，存储格式为.dat、.shp和.kmz，总压缩后数据量为1.10MB。