3D finite-difference simulations of strong ground motions in the Yanhuai area, Beijing, China during the 1720 Shacheng earthquake (Ms 7.0) using a stochastic finite-fault model

2006 ◽  
Vol 26 (10) ◽  
pp. 960-982 ◽  
Author(s):  
Guo-Quan Wang ◽  
Xi-Yuan Zhou
Keyword(s):  
Finite Difference ◽  
Ground Motions ◽  
Fault Model ◽  
Strong Ground Motions ◽  
Finite Fault ◽  
Finite Fault Model ◽  
Beijing China ◽  
Strong Ground

Fault Model of the 1804 Kisakata Earthquake (Akita, Japan)

2020 ◽  
Vol 91 (5) ◽  
pp. 2674-2684 ◽  
Author(s):  
Kentaro Imai ◽  
Shinsuke Okada ◽  
Narumi Takahashi ◽  
Yuichi Ebina ◽  
Yoshinobu Tsuji
Keyword(s):  
Crustal Deformation ◽  
Field Survey ◽  
Ground Motions ◽  
Fault Model ◽  
Historical Documents ◽  
Ocean Bottom ◽  
Tsunami Height ◽  
Strong Ground Motions ◽  
Strong Ground ◽  
Extensive Damage

Abstract The 10 July 1804 Kisakata earthquake occurred offshore Kisakata (Akita, Japan), and widespread felt shaking was reported from Matsumae (Hokkaido) to Ohmi-Hachiman (Shiga Prefecture). The earthquake caused strong ground motions that extensively damaged areas near the epicenter, such as along the coast of Kisakata, and the resultant tsunami caused extensive damage along the coast from Kisakata to Sakata. Furthermore, Kisakata lagoon was uplifted by dislocation during the earthquake, exposing the lagoon floor. Here, we performed a field survey of the uplift distribution based on microtopographic remnants of the former shoreline of Kisakata lagoon and used historical documents to re-evaluate tsunami trace heights. Using ocean-bottom reflection profiles, we estimated a fault model for the earthquake and resultant tsunami. Our model indicates that an average of 5.6 m of slip on the fault (equivalent to an Mw 7.1 earthquake) is required to explain the observed crustal deformation and tsunami height distributions, and back correction of the modeled slip reproduced well the former shoreline of Kisakata lagoon.

Synthesis of Strong Ground Motions at Two Dam Sites during the Great Wenchuan Earthquake

2013 ◽  
Vol 353-356 ◽  
pp. 1934-1940
Author(s):  
Hai Ming Liu ◽  
Xia Xin Tao ◽  
Li Yuan Wang ◽  
Wei Jiang
Keyword(s):  
Wenchuan Earthquake ◽  
Peak Ground Acceleration ◽  
Ground Motions ◽  
Source Spectrum ◽  
Ground Acceleration ◽  
Mean Values ◽  
Strong Ground Motions ◽  
Finite Fault ◽  
Source Models ◽  
Strong Ground

The ground motions on two dam sites during the great Wenchuan earthquake with magnitude 8.0, motions are synthesized from 30 finite fault based hybrid source models and inversed regional parameters of source spectrum and motion attenuation. The results show that the peak ground acceleration values are less than those estimated directly from the Intensities Ⅹ and Ⅺ at the two sites, with mean values 259 and 716 gals. The motion at Shapai is much stronger than that at Zipingpu, and the spectrum is also wider than the latter, but the corresponding duration is shorter during the earthquake.

scholarly journals CHARACTERIZED FAULT MODEL FOR PREDICTION OF STRONG GROUND MOTIONS FROM INTRA-SLAB EARTHQUAKES

2006 ◽  
Vol 71 (600) ◽  
pp. 35-42
Author(s):  
Kazuo DAN ◽  
Takayoshi MUTO ◽  
Jun'ichi MIYAKOSHI ◽  
Motofumi WATANABE
Keyword(s):  
Ground Motions ◽  
Fault Model ◽  
Strong Ground Motions ◽  
Strong Ground
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