Natural Science Forum / Earth Science / Earthquakes / October 2006

I just caught our own occasional poster Gerard Fryer on a National Geographic presentation called "Ultimate Tsunami." It is on again tomorrow at 12:00 PM PDST (I guess "1200 PM" means noon, but controversy has raged over that subject down throughout history). It is on the ...

I've been trying to follow the discussion on Plate Tetonics and how
this theory has either been debunked or come under severe scrutiny,
however, there are so many threads it is difficult to follow. Is there
a page or perhaps (better) a book that might shine more light on this?

Magnitude 3.4 - SOUTHEASTERN MISSOURI
2006 October 18 20:59:20 UTC
http://earthquake.usgs.gov/eqcenter/recenteqsus/Quakes/nm891.php
See also:

http://en.wikipedia.org/wiki/WC-135
http://www.af.mil/factsheets/factsheet.asp?fsID=192
It did not pick up any emissions from N Korea.

You heard it here first.
Alaska ended a four year down trend yesterday. I expect moderate quakes
to occur over the next few years, nothing above magnitude 7.5 just
moderate .. 5.5 - 7.

Looking for a way to measure elevation or relative position at a
distance of 300-400ft.
The GPS systems use a geode of approximation which can be off several
feet vertically but would like a less expensive means for horizontal.

I know a few astronomers frequent here.
Considering the large quake in Hawaii, I contacted the PIO at Keck
Observatory and she responed that the mirrors appear to be in good
shape, as are spare mirror segments and instrumentation. Computer

Dec. 26th,...but, 2003. more than 40.000 deaths in BAM, Iran. I studied
how many Magn.6+ in a month was normal for the Planet....It was 11 to
13, but it changes some days before the fatidic 26th: to 19 and more.
At least for 3 years before, the global activity was "normal"   In

Wow.
Hawaii really had a couple of whoppers. I've been trying to get a hold of a
friend of mine that lives in Kahalui, Maui. But haven't had any luck.
I did pull this off of associated Press

I wasn't expecting so much strike-slip motion. I was
expecting a more horizontal motion that would be associated
with flank movement.
06/10/15 17:07:48.37

Mag 5.8, 17:14:09 ~ 19.946, -156.157 ~ DEPTH = 4.6 km ~ 29 km (18 mi)
NNW of Kalaoa, HI
Mag 6.3, 17:07:48 ~ 19.842, -156.059 ~ DEPTH = 24.0 km ~ 14 km (9 mi)
NNW of Kalaoa, HI

hi all, what is the equation of the great circle connecting 2 points
with known (theta, phi,r)? i need an equation which has theta and phi
as variables! that is an equation in spherical coordinates. thanks

See:
http://earthquake.usgs.gov/eqcenter/recenteqsus/Maps/US10/42.52.-125.-115.php
RCM SHZ UW : Rainier - Camp Muir
http://www.pnsn.org/WEBICORDER/VOLC/RCM_SHZ_UW.2006100800.html

..."No radioactivity has not yet been detected from the alleged nuclear
test," said Han Seung-Jae, director of the state-run Nuclear Emergency
Preparedness Department (NEPD), before confirmation of the blast. "It
might not be detected at all if the alleged nuclear testing was

http://www.eurekalert.org/pub_releases/2006-09/duot-nrp092006.php
The volcanic island of La Palma in the Canaries is much more stable than is
generally assumed, Dutch scientists working at the TU Delft have found. The
southwestern flank of the island isn't likely to fall into the ...