Real-time Earthquake Damage Assessment using City-scale Time history analysis (RED-ACT)

Scientific Background of This Report

An accurate and rapid assessment of seismic damage can provide an important reference for emergency rescue and post-earthquake recovery. Based on the city-scale nonlinear time-history analysis and dense-distributed strong motion network, a real-time regional time-history analysis method is proposed in this work. In this method, the actual ground motion records obtained from seismic stations are input into the building models of the earthquake-stricken area, and the city-scale nonlinear time-history analysis of these models is subsequently performed. The seismic damage of the buildings in the target region subjected to this earthquake is evaluated according to the analysis result. Consequently, (1) The uncertainty problem of ground motion input is solved properly with the proposed method based on the real-time ground motion obtained from the seismic stations; (2) The amplitude, spectrum, and duration characteristics of ground motions as well as the stiffness, strength, and deformation characteristics of different buildings are fully considered in this method based on the nonlinear time-history analysis and multiple-degree-of-freedom (MDOF) models; (3) Using the real-time city-scale time-history analysis and the corresponding report system, the assessment of the earthquake destructive power can be obtained shortly after the earthquake event.

Scientific Background of This Report

Framework of Real-Time Regional Time-History Analysis

Typical Damage Distribution

Typical Human Comfortableness Distribution

Typical Earthquake-Induced Landslide Distribution

Jun. 23 M5.6 California Petrolia Earthquake

Jun. 22, 2019, M5.4 Gongxian Earthquake

Jun. 18, 2019, M6.8 Japan Yamagata-ken Earthquake

Jun. 17, 2019, M6.0 Changning Earthquake

Jun. 17, 2019, M5.2 Japan Ibaraki-ken Earthquake

Jun. 9, 2019, M5.5 New Zealand Earthquake

Jun. 04, 2019, M6.1 Japan Torishima Earthquake

May 25, 2019, M5.1 Japan Chiba-ken Earthquake

May 18, 2019, M5.1 China Songyuan Earthquake

May 16, 2019, M4.7 China Yunnan Earthquake

May 10, 2019, M6.3 Japan Hyuga-nada Earthquake

May. 5, 2019, M5.3 Japan Nemuro-hanto Earthquake

Apr. 28, 2019, M5.6 Tokachi-chiho Earthquake

Apr. 24, 2019, M4.8 NZ Dannevirke Earthquake

Apr. 14, 2019, M3.0 Beijing Huairou Earthquake

Apr. 11, 2019, M6.0 Japan Sanriku Oki Earthquake

Mar. 27, 2019, M5.4 Japan Hyuga-nada Earthquake

Mar. 13, 2019, M5.2 Japan Kii-suido Earthquake

Mar. 11, 2019, M5.9 Japan Fukushima-ken Earthquake

Mar. 09, 2019, M4.5 Japan Gifu-ken Earthquake

Mar. 07, 2019, M4.6 Japan Miyagi-ken Earthquake

Mar. 02, 2019, M6.2 Japan Nemuro-hanto Earthquake

2019-03-01新西兰5.0级地震人员震感分布

2019-02-25自贡4.9级地震人员震感分布

2019-02-24宜宾4.7级地震人员震感分布

2019-02-21日本北海道5.7级地震人员震感分布

2019-02-10日本Amami 4.8级地震人员震感分布

2019-02-08日本静冈4.1级地震人员震感分布

2019-01-26日本东北5.7级地震人员震感分布

2019-01-26日本熊本4.4级地震人员震感分布

2019-01-19东京4.0级地震人员震感分布

2019-01-18东京5.0级地震人员震感分布

2019-01-12喀什5.1级地震人员震感分布

2019-01-08九州6.3级地震人员震感分布

2019-01-07伽师4.8级地震

2019-01-03熊本4.7级地震

2019-01-03宜宾5.3级地震

2018-12-30北海道5.5级地震

2018-12-26西西里5.0级地震

2018-12-20阿克陶县5.2级地震人员震感分布

2018-12-16宜宾5.7级地震人员震感分布

2018-12-08呼图壁4.5级地震

2018-12-01安克雷奇7.2级地震

2018-11-26台湾海峡6.2级地震人员震感分布

2018-11-25博乐市4.9级地震

2018-11-04阿图什5.1级地震人员震感分布

2018-11-02本州5.2级地震

2018-10-31凉山5.1级地震人员震感分布

2018-10-26北海道5.4级地震

2018-10-16精河5.4级地震人员震感分布

2018-09-08墨江5.9级地震人员震感分布

2018-09-06北海道6.9级地震人员震感分布

2018-09-04伽师5.5级地震

2018-08-14通海5.0级地震

2018-08-13通海5.0级地震

2018-06-18大阪6.1级地震人员震感分布

2018-05-28松原5.7级地震

2017-08-08九寨沟7.0级地震

2017-09-16库车5.7级地震

2016-11-13新西兰7.8级地震人员震感分布

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