| Institute of Geomechanics, Chinese Academy of Geological Sciences | Host |
| Citation: |
PENG Hua, MA Xiu-min, JIANG Jing-jie. ANALYSIS OF THE VOLUME STRAIN DATA FROM THE SHANDAN IN-SITU STRESS MONITORING STATION[J]. Journal of Geomechanics, 2008, 14(2): 97-108.
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ANALYSIS OF THE VOLUME STRAIN DATA FROM THE SHANDAN IN-SITU STRESS MONITORING STATION
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Abstract
The authors analyzed the volume strain data recorded from July 2007 to July 2008 in the Shandan in-situ stress monitoring station by using the statistical method, made a correlation of these seismic data with those recorded from other stations and studied the strain seismic waves, comseismic strain step and its contained physical significance, thus revealing the nature of the seismic strain waves.The data trends had pronounced anomalies.The effect of comseismic variation observed by the volume strain seismograph in the Shandan in-situ stress monitoring station was mainly the tensional step.
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References
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PENG Hua, MA Xiu-min, JIANG Jing-jie. ANALYSIS OF THE VOLUME STRAIN DATA FROM THE SHANDAN IN-SITU STRESS MONITORING STATION[J]. Journal of Geomechanics, 2008, 14(2): 97-108.
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Figure 1.
Seismic strain wave of the MS8.5 earthquake in southern Sumatra in the sea, Indonesia, on September 12, 2007
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Figure 2.
Seismic strain wave of the MS7.3 earthquake at Yutian in March 21, 2008
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Figure 3.
Seismic strain wave of the MS7.3 earthquake at the east coast of Japan's Honshu, on July 19, 2008
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Figure 4.
Oscillations of 4.0 aftershock at Qingchuan, on May 30, 2008
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Figure 5.
The Earth's free oscillations before and after MS 5.3 earthquake west of Tanggula Mountains, Qinghai at 06: 58: 22 on July 17, 2008
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Figure 6.
The Earth's free oscillations before and after MS6.0 earthquake in the sea area of Hengchun, Taiwan, on July 13, 2008
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Figure 7.
Strain curve of the MS6.0 Wenchuan aftershock at 19: 10: 58, May 12, 2008(aftershock of the MS8.0 Wenchuan earthquake)
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Figure 8.
Strain curve of the MS6.1 Wenchuan aftershock at 15: 07, May 13, 2008(aftershock of the MS8.0 Wenchuan earthquake)
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Figure 9.
Strain curve of the MS 5.6 Wenchuan aftershock at 10: 54, May 14, 2008(aftershock of the MS8.0 Wenchuan earthquake)
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Figure 10.
Strain monitoring curve at 14: 28, May 12, 2008(aftershock of the MS8.0 Wenchuan earthquake)
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Figure 11.
Negative strain step of MS7.8 earthquake in the coast of Peru at 07: 40: 58, August 16, 2007
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Figure 12.
Negative strain step of MS6.9 earthquake in the sea south of Sumatra, Indonesia at 16: 31: 13, September 20, 2007
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Figure 13.
The distribution of strain anomaly before the MS8.0 Wenchuan earthquake (2008.5.10 ~ 5.14)
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Figure 14.
Strain step on the day before the MS7.3 Yutian earthquake (2008.3.20)
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Figure 15.
Strong strain step at on the day before the MS7.6 earthquake at the Sea of Okhotsk, Russian