Earthquakes
[Disclaimer: Is this an earthquake prediction or warning? The
commentary provided with this map(s) is for Informational use only,
and should not be construed as an earthquake prediction, warning,
or advisory. Responsibility for such warnings rests with the
Office of Emergency Services of the State of California. Please
remember -- this is preliminary data! Releasing this summary on a
timely basis requires that the data, analysis, and interpretation
presented is preliminary. Of necessity they can only reflect the
views of the seismologists who prepared them, and do not carry the
endorsement of the U.S.G. Thus while every effort is made to
ensure that the information is accurate, nothing contained in this
report is to be construed as and earthquake prediction, warning,
advisory, or official policy statement of any kind, of the U.S.
Government.]
Abstract
The "Big One" is modelled. Unexpected results occurred which
can affect the socio-economic future of the state.
Problem Statement
To satisfy the public's incessant desire to know about a
California earthquake. It is generally agreed that the major
seismic hazard exists in the southern portion of the state.
The desire is to model the effects of "The Big One."
Method
A map model of the state of California was purchased. The map
was composed of a homogeneous, organic, colloidal solid. Foregoing
the usual paper machete and attempts to model the properties of the
usual batholiths, strata, slip faults, and structure, this research
made the bold stroke of using a relief map composed of a milk
chocolate.
The topographic chocolate relief map was a 1:20,000,000 scale
model purchased from a retailer in the city of San Jose, CA. The
vertical scale likely had exaggerated relief. All the more tasty.
The San Andreas and other fault systems are clearly
distinguishable. We assume that the thicker portions of the solid
(Z > z for all Z,z > 0.0) are likely to resist movement and shear
stress than the thinner portions. Topographic details are rendered
as delicious lithographic landforms.
A specific geographic area is covered. It is an acknowledged
concern that the area near Ft. Tejon, CA has had minimal movement
(in excess of statistical averages). The area is notable for it is
also the intersection of both the San Andreas and the Garlock Fault
zones. The methods simulates the input of energy into the
epicenter involved the sudden application of force to this model
area by means of a quick blow using a Mid-European Country Military
sharp instrument.
Limitations
This model is limited to crustal activity and does not involve
lower activity in the mantle. Continental shelf, slope, and sea
bed were not modelled and instead were composed of a uniformly
thick slab of sweet milk chocolate. The same thickness extended
through the states of Oregon, Nevada, and the model of country in
Mexico.
It is difficult to build a model on a fluid mantle, so we
ignore those for this study. It was cheap.
Results
Catastrophic failure took place took place in an unexpected
direction. Rather than the expect NW-SE direction along the San
Andreas trace, the Garlock sheared and the Southern portion of the
state fractured.
Regrettably, the model was destroyed during the test. The
impact of the shock was beyond the capability of repair. The model
was consumed.
Analysis
This violated the standard hypothesis that the portions of the
Pacific plate would either slid past the North American plate or
the Eastern hypothesis that all of CA would fall into the sea. (We
failed to simulate seabed).
The model has clear limitations. The assumption of
homogeneous media is clearly an over-simplification of real
tectonic structures. This research clearly requires higher quality
solid materials. The clear determinant was the thickness of the
chocolate layer, then the adequacy of this model is based on this
thickness so we consider it an adequate 1-D model. [The model was
made in Denver, perhaps Swiss chocolate might even be better.]
Repercussions of this model's prediction can change the socio-economic patterns of the state. Perhaps the traditional split of
the state into a Northern component and a Southern component is
warranted. The North could form a new country, or the Southern
might become a new State for Mexico. The possibilities are
endless.
Continued Research
The next step of an adequate 2-D model is needed, then 3-D.
Further funding for purchase of the homogeneous media might offer
new insights into the behavior of these models. We hope continued
research using these models by colleagues such as Smither, Ahrens,
and Kamb might produce further insights in solids geophysics.
Larger scale models might be recommended (perhaps a 1:5,300,000
scale?) Added relief might also add chocolate. Adding features to
models can include surrogates such as nuts (i.e., cashews, peanuts,
etc.) thus simulating interesting subsurface anomalies.
References
E. Callenbach, Ecotopia.
E. Callenbach, Ecotopia Emerging.