usgs

  1. bjdeming

    6.3 Quake Off Oregon Coast

    This is the Blanco transform fault way out to sea, not the Cascadia Subduction Zone. Two completely separate geologic features. It caused no harm, no tsunami. The movements are strike-slip (in a more-or-less horizontal plane) so tsunamis aren't a problem like they are on a thrust fault. The...
  2. bjdeming

    New Madrid Fault: New USGS Study Shows Quakes Happen at Irregular Intervals

    Well, this complicates hazard planning, but overall it may be good news.
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