The Quakes in Maupin

Maupin, Oregon, geologically, has been more active recently and I have been searching for clues as to why. One possible reason: the subduction zone built the Cascades and may be responsible for the Maupin quakes. It also could be related to the activity in the Three Sisters or Newberry Crater.

In addition, to the north of maupin, at Tygh Valley is an anticline that has been active.

In structural geology, an anticline
is a fold that is convex up or to the youngest beds.

Maupin Earthquakes Anticline Mover Mike

Update:

MAP 1.1 2007/02/23 18:46:56 45.367 -121.713 3.4 19 km ( 12 mi) SSW of Parkdale, OR

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