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+--- Thread: quakes today (/showthread.php?tid=115)
quakes today - Roger Hunter - 06-23-2014
3 mag 6+ in New Zealand and a mag 8 in the Aleutians and nobody had a clue.
Roger
RE: quakes today - Island Chris - 06-23-2014
The M8.0 (or 7.9) has an odd focal mechanism: either strike-slip on a flattish fault or else is near vertical fault. It is also deep, so not a regular megathrust quake.
Chris
RE: quakes today - Roger Hunter - 06-23-2014
(06-23-2014, 11:08 PM)Island Chris Wrote: The M8.0 (or 7.9) has an odd focal mechanism: either strike-slip on a flattish fault or else is near vertical fault. It is also deep, so not a regular megathrust quake.
Chris
Yeah, the mag will bounce around for awhile as more data is processed.
That's a subduction zone up there isn't it?
Roger
RE: quakes today - Island Chris - 06-24-2014
Yes, there is a subduction zone. USGS says it is within the subducted slab (in their Summary). I only skimmed the tectonic summary, but recall from elsewhere that the plate motion is highly oblique to the subduction zone in that area.
Chris