Detailed Spatial Variation of Short-Period Earthquake Ground Motion in the vicinity of Tachikawa-Fault

2015 ◽  
Author(s):  
Seiji Tsuno ◽  
Kosuke Chimoto ◽  
Koichiro Saguchi ◽  
Hiroaki Sato ◽  
Shinichi Matsushima ◽  
...  
Keyword(s):  
Spatial Variation ◽  
Ground Motion ◽  
Earthquake Ground Motion ◽  
Short Period

The San Salvador Earthquake of October 10, 1986—Review of Building Damage

1987 ◽  
Vol 3 (3) ◽  
pp. 497-541 ◽  
Author(s):  
Raymond W. Anderson
Keyword(s):  
Ground Motion ◽  
Lessons Learned ◽  
Earthquake Ground Motion ◽  
Wide Spread ◽  
Height Range ◽  
San Salvador ◽  
High Rise ◽  
Short Period ◽  
Collapsed Buildings ◽  
Heavy Damage

Damage to low-rise engineered buildings in San Salvador in the three to six-story height range was major and wide-spread. This can probably be attributed to the small natural periods of vibration associated with low-rise buildings and their response when interacting with the short-period and short-duration earthquake ground motion. Damage to high-rise buildings that have much longer periods of vibration was relatively minor. This paper reviews buildings that appeared to have performed well and describes the heavy damage that occurred to low-rise buildings that performed poorly, including examples of collapsed or partially collapsed buildings. Lessons learned or relearned from the San Salvador earthquake are summarized.

scholarly journals A Grid-Based Method to Represent the Covariance Structure for Earthquake Ground Motion

2012 ◽  
Vol 2012 ◽  
pp. 1-13
Author(s):  
Yingmin Li ◽  
Zheqian Wu ◽  
Huiguo Chen
Keyword(s):  
Spatial Variability ◽  
Random Field ◽  
Spatial Variation ◽  
Ground Motion ◽  
Covariance Structure ◽  
Spatial Variations ◽  
Earthquake Ground Motion ◽  
Seismic Motion ◽  
Almost All ◽  
Grid Based

Spatial variation of earthquake ground motion is an important phenomenon that cannot be ignored in the design and safety of strategic structures. However, almost all the procedures for the evaluation of variation assumed that the random field is homogeneous in space. It is obvious that reality does not fully conform to the assumption. How to investigate the inhomogeneous feature of ground motion in space is a challenge for researcher. A body-fitted grid-coordinates-based method is proposed to estimate and describe the local spatial variations for the earthquake ground motion; it need not to make the assumption that the random field of earthquake is homogeneous in space. An analysis of spatial variability of seismic motion in smart-1 array monitored in Lotung, Taiwan demonstrates this methodology.

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