Anomalous signals before 2011 Tohoku-oki Mw9.1 earthquake, detected by superconducting gravimeters and broadband seisimometers

Anomalous signals before 2011 Tohoku-oki Mw9.1 earthquake, detected by superconducting gravimeters and broadband seisimometers

The 2011 Tohoku-oki earthquake, occurred on 11 March, 2011, is a great earthquake with a seismic magnitude Mw9.1, before which an Mw7.5 earthquake occurred. Focusing on this great earthquake event, we applied Hilber-Huang transform (HHT) analysis method to the one-second interval records at seven su...

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Bibliographic Details
Main Authors: Gu Xiang, Jiang Tianxing, Zhang Wenqiang, Huang Weiliang, Chang Zhiqiang, Shen Wenbin
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2014-05-01
Series:Geodesy and Geodynamics
Subjects:
earthquake
anomalous signals
superconducting gravity data
broadband seismic data
Hilbert-Huang Transform
Online Access:http://www.sciencedirect.com/science/article/pii/S167498471530015X

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