A Silent Slip Event on the Deeper Cascadia Subduction Interface

  title={A Silent Slip Event on the Deeper Cascadia Subduction Interface},
  author={Herb Dragert and Kelin Wang and T S James},
  pages={1525 - 1528}
Continuous Global Positioning System sites in southwestern British Columbia, Canada, and northwestern Washington state, USA, have been moving landward as a result of the locked state of the Cascadia subduction fault offshore. In the summer of 1999, a cluster of seven sites briefly reversed their direction of motion. No seismicity was associated with this event. The sudden displacements are best explained by ∼2 centimeters of aseismic slip over a 50-kilometer-by-300-kilometer area on the… Expand

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