Source scaling relationships of microearthquakes at Parkfield, CA, determined using the SAFOD Pilot Hole Seismic Array

DOI 被引用文献20件

書誌事項

公開日
2006
DOI
  • 10.1029/170gm10
公開者
American Geophysical Union

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説明

We estimate the source parameters of 34 microearthquakes at Parkfield, CA, ranging in size from M -0.2 to M 2.1, by analyzing seismograms recorded by the 32-level, 3-component seismic array installed in the SAFOD Pilot Hole. We succeeded in obtaining stable spectral ratios by stacking the ratios calculated from the moving windows taken along the record following the direct waves. These spectral ratios were modeled to determine seismic moments and corner frequencies assuming an omega-squared model. Static stress drops and apparent stresses of microearthquakes at Parkfield display moment-independent scaling in agreement with scaling laws reported for moderate and large earthquakes. It is likely that the dynamics of microearthquakes at Parkfield is macroscopically similar to that of larger tectonic earthquakes.

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詳細情報 詳細情報について

  • CRID
    1361418520036434560
  • DOI
    10.1029/170gm10
  • ISSN
    00658448
  • データソース種別
    • Crossref
    • OpenAIRE

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