After a semi-good nights sleep, I see that you guys have kept at it!!
While the quakes have decreased in intensity, they have not become any shallower.
Puterman...I rank the volcanic theory in the top three.
Here are my guesses: (might as well have some fun)
1. The new, not yet documented subduction zone
It is, however, associated not with the Philippine Trench, which is the dominant tectonic
feature along the eastern Philippine Islands, but with a much less prominent trench system in the Moro Gulf, North Celebes Sea, south of Mindanao. In
this area most of the seismicity is at depths greater than 500 km, associated with the westward dipping Benioff zones of the Sangihe and Mindanao arc
systems
(as presented by MoorFNZ)
2. The new volocano theory (I think slidingdoor original suggested this could be a new island trying to 'pop up' )
3. Same 'ole action on the ring of fire, with a twist. For some reason we are seeing movement MUCH deeper than typical, possibly indicating
mechanics that are yet to be discovered or studied. Our earth is full of surprises.
4. A new trench opening up. (did Puterman suggest this?)
While the speculation is fun, we may never know. One thing I do believe though, is that you can't have that much energy released that deep into the
earths mantle and NOT have some sort of reaction elsewhere.
Here is the latest list:
MAP 2.7 2010/07/24 16:33:21 32.220 -115.350 15.7 BAJA CALIFORNIA, MEXICO
MAP 5.0 2010/07/24 15:17:49 -1.348 99.486 17.5 KEPULAUAN MENTAWAI REGION, INDONESIA
MAP 4.7 2010/07/24 14:59:22 0.903 99.537 35.0 NORTHERN SUMATRA, INDONESIA
MAP 2.6 2010/07/24 14:52:25 61.343 -147.207 17.8 SOUTHERN ALASKA
MAP 3.1 2010/07/24 14:05:05 59.734 -150.683 48.4 KENAI PENINSULA, ALASKA
MAP 3.2 2010/07/24 13:14:45 32.145 -115.391 20.6 BAJA CALIFORNIA, MEXICO
MAP 2.5 2010/07/24 12:55:04 32.373 -115.540 4.0 BAJA CALIFORNIA, MEXICO
MAP 4.8 2010/07/24 12:34:13 26.641 53.812 19.5 SOUTHERN IRAN
MAP 5.1 2010/07/24 11:56:26 6.567 123.649 610.7 MORO GULF, MINDANAO, PHILIPPINES
MAP 4.7 2010/07/24 11:10:46 6.723 123.651 606.4 MORO GULF, MINDANAO, PHILIPPINES
MAP 4.5 2010/07/24 10:30:08 -18.312 -177.798 579.3 FIJI REGION
MAP 5.0 2010/07/24 10:21:48 -4.280 148.235 78.0 BISMARCK SEA
MAP 4.7 2010/07/24 09:46:49 6.688 123.653 609.6 MORO GULF, MINDANAO, PHILIPPINES
MAP 5.3 2010/07/24 07:55:42 -10.832 165.572 70.2 SANTA CRUZ ISLANDS
MAP 5.0 2010/07/24 07:46:23 -6.776 149.744 67.2 NEW BRITAIN REGION, PAPUA NEW GUINEA
MAP 2.9 2010/07/24 06:41:15 32.576 -115.778 2.2 BAJA CALIFORNIA, MEXICO
MAP 2.8 2010/07/24 06:03:03 32.152 -115.323 0.9 BAJA CALIFORNIA, MEXICO
MAP 6.5 2010/07/24 05:35:02 6.226 123.522 555.3 MORO GULF, MINDANAO, PHILIPPINES
MAP 2.6 2010/07/24 05:28:24 18.174 -67.448 14.3 MONA PASSAGE, PUERTO RICO
MAP 4.4 2010/07/24 05:01:38 6.886 123.853 597.5 MORO GULF, MINDANAO, PHILIPPINES
MAP 3.1 2010/07/24 03:05:39 32.614 -115.692 11.3 BAJA CALIFORNIA, MEXICO
MAP 3.9 2010/07/24 02:29:41 32.718 -115.987 3.2 SOUTHERN CALIFORNIA
MAP 5.4 2010/07/24 02:11:26 0.995 99.524 38.1 NORTHERN SUMATRA, INDONESIA
MAP 5.3 2010/07/24 01:44:44 6.622 123.700 592.2 MORO GULF, MINDANAO, PHILIPPINES
MAP 4.9 2010/07/24 00:50:14 6.565 123.642 581.5 MORO GULF, MINDANAO, PHILIPPINES
--------------------------------------------------------------------------------
MAP 7.4 2010/07/23 23:15:09 6.749 123.268 616.7 MORO GULF, MINDANAO, PHILIPPINES
MAP 7.6 2010/07/23 22:51:12 6.494 123.533 576.3 MORO GULF, MINDANAO, PHILIPPINES
MAP 5.4 2010/07/23 22:19:36 6.764 123.545 594.8 MORO GULF, MINDANAO, PHILIPPINES
MAP 7.3 2010/07/23 22:08:11 6.708 123.479 604.5 MORO GULF, MINDANAO, PHILIPPINES
Oh, and TiggymcNab; you are absolutely right. It is not unusuall to have the depth/mag updated after the initiall, computerized post. What WAS weird
with these, was the initiall, obvious confusion over depth/mag/event itself. It took quite some time and seven versions (reviews) to come up with the
final tally. My guess is that it's because the events were so deep. To have that many 7+ quakes anywhere in that period of time is notable in
itself. To have them all between 576 - 616 km deep is just unheard of.