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Volume 22 Issue 5
Oct.  2011
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申文斌, 王迪晋, 黄金维. Anomalous Signals Prior to Wenchuan Earthquake Detected by Superconducting Gravimeter and Broadband Seismometers Records. Journal of Earth Science, 2011, 22(5). doi: 10.1007/s12583-011-0215-4
Citation: 申文斌, 王迪晋, 黄金维. Anomalous Signals Prior to Wenchuan Earthquake Detected by Superconducting Gravimeter and Broadband Seismometers Records. Journal of Earth Science, 2011, 22(5). doi: 10.1007/s12583-011-0215-4

Anomalous Signals Prior to Wenchuan Earthquake Detected by Superconducting Gravimeter and Broadband Seismometers Records

doi: 10.1007/s12583-011-0215-4
  • Received Date: 2018-07-15
  • Rev Recd Date: 2018-07-15
  • Publish Date: 2018-07-15
  • Using 1 Hz sampling records at one superconducting gravimeter (SG) station and 11 broadband seismometer stations, we found anomalous signals prior to the 2008 Wenchuan (汶川) earthquake event. The tides are removed from the original SG records to obtain the gravity residuals. Applying the Hilbert-Huang transform (HHT) and the wavelet analysis to the SG gravity residuals leads to time-frequency spectra, which suggests that there is an anomalous signal series around 39 h prior to the event. The period and the magnitude of the anomalous signal series are about 8 s and 3?10-8 m/s2 (3 μGal), respectively...
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通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Anomalous Signals Prior to Wenchuan Earthquake Detected by Superconducting Gravimeter and Broadband Seismometers Records

doi: 10.1007/s12583-011-0215-4

Abstract: Using 1 Hz sampling records at one superconducting gravimeter (SG) station and 11 broadband seismometer stations, we found anomalous signals prior to the 2008 Wenchuan (汶川) earthquake event. The tides are removed from the original SG records to obtain the gravity residuals. Applying the Hilbert-Huang transform (HHT) and the wavelet analysis to the SG gravity residuals leads to time-frequency spectra, which suggests that there is an anomalous signal series around 39 h prior to the event. The period and the magnitude of the anomalous signal series are about 8 s and 3?10-8 m/s2 (3 μGal), respectively...

申文斌, 王迪晋, 黄金维. Anomalous Signals Prior to Wenchuan Earthquake Detected by Superconducting Gravimeter and Broadband Seismometers Records. Journal of Earth Science, 2011, 22(5). doi: 10.1007/s12583-011-0215-4
Citation: 申文斌, 王迪晋, 黄金维. Anomalous Signals Prior to Wenchuan Earthquake Detected by Superconducting Gravimeter and Broadband Seismometers Records. Journal of Earth Science, 2011, 22(5). doi: 10.1007/s12583-011-0215-4

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