Great Quakes Series #4: Cascadia 1700 Traditional Geocache
Emmy-n-Sapphie: Have replaced this one with Great Quakes Series #4: Cascadia 1700 (Redux) - GC134TZ. Archiving this one. Come find the new one!
Great Quakes Series #4: Cascadia 1700
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This micro cache is part of The Great Quakes Series of six caches
with a bonus 7th cache. Make sure you take note of the code at each
cache so you can find the bonus! BYOP PLEASE PUT THE CONTAINER BACK
EXACTLY WHERE YOU FOUND IT! OTHERWISE, THE CLUE IS MEANINGLESS.
Thanks!
One of the most fascinating parts of Physical Geography is the
plate tectonics theory which helps explain volcanic formations and
earthquakes, among other things. This series of caches is dedicated
to some of the most powerful earthquakes ever recorded. A Great
Quake is one that has a magnitude of 8.0 or greater.
At 9PM on January 26, 1700, one of the world's largest earthquakes
(The Cascadia Subduction Zone Earthquake) occurred along the west
coast of North America. The undersea Cascadia thrust fault ruptured
along a 600 mile length, from mid Vancouver Island to northern
California in a great earthquake. This magnitude 9.0 quake produced
tremendous shaking and a huge tsunami that swept across the Pacific
resulting in incredible damage in Japan. The Cascadia fault is the
boundary between two of the Earth's tectonic plates: the smaller
offshore Juan de Fuca plate that is sliding under the much larger
North American plate at a rate of 40 mm/year. Geological evidence
indicates that 13 great earthquakes have occurred in the last 6000
years at intervals of from 300 to 900 years, with an average of 590
years. Other subduction zones usually have such earthquakes every
100–200 years; the longer interval here may indicate unusually
large stress buildup and subsequent unusually large earthquake slip
with resulting tsunamis. Because the Cascadia region (Portland,
Seattle, Vancouver, etc.), is now so heavily populated, when
another major earthquake occurs along this fault, the destruction
will be unimaginable in terms of both physical destruction and
lives lost.
This earthquake occurred in the so-called Ring of Fire region, an
area around the margins of the Pacific Ocean where approximately
3/4ths of the Earth’s volcanoes are located. This is a zone where
the Pacific tectonic plate meets many other plates. As a result of
the collisions between these plates, the Ring of Fire is the most
seismically active zone in the world. More earthquakes and volcanic
eruptions happen here than anywhere else on Earth. To see a map of
the Ring of Fire, go to (visit
link) . For more information on the 1700 Cascadia Suduction
Zone Earthquake of 1700, go to (visit link) . For more information on
earthquakes in general, go to (visit link) . For more information on the plate
tectonic theory, go to (visit link)
In keeping with my philosophy that Physical Geography affects you
every single day of your life, we have hidden these caches in
everyday places. We found this pretty little path between 2
neighborhood streets when we were hitting the garage sales one
morning. Thanks to Tablespoons for the container. BYOP!
Congratulations to Deafdillos on the FTF!
Additional Hints
(Decrypt)
1. Svyz pnavfgre
2. Ybj
3. Srapr