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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.
Framework of Real-Time Regional Time-History Analysis
Typical Damage Distribution
Typical Human Feeling Distribution
Typical Earthquake-Induced Landslide Distribution
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Feb.
21, 2020, M5.1 China Jiashi Earthquake
Feb.
13, 2020, M7.0 Etorofuto Nanto-oki Earthquake
Jan.
19, 2020, M6.4 China Jiashi Earthquake
Jan.
09, 2020, M3.2 China Fangshan Earthquake
Jan.
03, 2020, M5.9 Japan Chiba-ken Earthquake
Dec.
23, 2019, M3.3 China Tianjin Earthquake
Dec.
19, 2019, M5.5 Japan Aomori-ken Earthquake
Dec.
18, 2019, M5.2 China Neijiang Earthquake
Dec.
09, 2019, M4.6 China Mianyang Earthquake
Dec.
05, 2019, M4.9 China Xinjiang Earthquake
Dec.
05, 2019, M4.5 China Tangshan Earthquake
Dec.
04, 2019, M4.7 Japan Tochigi-ken Earthquake
Nov.
29, 2019, M5.5 Japan Sanriku Oki Earthquake
Nov.
23, 2019, M5.6 Japan Hokkaido Toho-oki Earthquake
Oct.
28, 2019, M5.7 Guansu Xia Earthquake
Oct.
12, 2019, M5.2 Guangxi Yulin Earthquake
Sep.
16, 2019, M5.0 Gansu Ganzhou Earthquake
Sep.
08, 2019, M5.4 Sichuan Weiyuan Earthquake
Aug.
29, 2019, M6.1 Japan Aomori-ken Earthquake
Aug.
04, 2019, M6.2 Japan Fukushima-ken Earthquake
Jul.
28, 2019, M6.4 Japan Mie-ken Earthquake
Jul.
25, 2019, M5.3 Japan Chiba-ken Earthquake
Jul.
21, 2019, M4.9 Yunnan Yongsheng Earthquake
Performance of typical buildings designed according to the US codes subject to the CI.CCC record of M7.1 Ridgecrest Earthquake
Jul.
05, 2019, M7.1 California Ridgecrest Earthquake
Jul.
04, 2019, M6.4 California Searles Valley Earthquake
Jul.
04, 2019, M5.6 Gongxian Earthquake
Jun.
24, 2019, M5.5 Japan Chiba-ken Earthquake
Jun.
23, 2019, 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.
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
2019-01-26日本东北5.7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
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Scientific Background of This Report