The December 26, 2004, off the west coast of northern Sumatra,Indonesia, MW=9.0, earthquake and the critical-point-like model of earthquake preparation |
| |
Authors: | Jiang Chang-sheng Wu Zhong-liang |
| |
Affiliation: | 1.Institute of Geophysics,China Earthquake Administration,Beijing,China;2.College of Earth Science, Graduate School of Chinese Academy of Sciences,Beijing,China |
| |
Abstract: | Long-term seismic activity prior to the December 26, 2004, off the west coast of northern Sumatra, Indonesia, M W=9.0 earthquake was investigated using the Harvard CMT catalogue. It is observed that before this great earthquake, there exists an accelerating moment release (AMR) process with the temporal scale of a quarter century and the spatial scale of 1 500 km. Within this spatial range, the M W=9.0 event falls into the piece-wise power-law-like frequency-magnitude distribution. Therefore, in the perspective of the critical-point-like model of earthquake preparation, the failure to forecast/predict the approaching and/or the size of this earthquake is not due to the physically intrinsic unpredictability of earthquakes. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|