HAYWARD FAULT WATCH. A tiny micro quake, 1.6 magnitude, hit the Hayward Fault, one mile underneath the East Oakland School of the Arts by 88th Ave and MacArthur Blvd around 5:18am Tuesday 9/3 morning. No one felt it. The quake is very shallow, only one mile down, indicates that it occurred on the creeping part of the fault. The top two or three miles is slowly creeping around 1/16 to 1/8 of an inch per year, bending curbs, pipes, deforming buildings and warping the overall landscape over many years. The bottom 10 to 12 miles of the fault is locked, causing the land on top to "tilt". For example, the University of California Berkeley(Cal) football stadium is on top of the Hayward Fault, and the western half of the stadium is moving and tilting northward, while the eastern half is moving and tilting southward, causing the stadium to have the illusion of splitting on top faster than the bottom. In other news, a 6.0 quake hit off the western coast of Canada, with a few moderate aftershocks, and it was on the northern tip of the dreaded Cascadia Fault zone. It happened around 1:30pm today.
Posted on: Wed, 04 Sep 2013 02:11:05 +0000
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