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WHAT IS
BEING DONE
RIGHT - Construction to minimize
quake damage. Buildings such as
this one in San Francisco with steel
cross girders are appreciably safer
than many lower buildings
constructed without the guidelines
of updated earthquake building codes.
ABOVE - Guatemala quake in
February. Striking at 2:30a.m.,
it killed
o
ver 23,000 and left
o
ver a
mil/ion homeless. Note modern
brick structure sti/1 standing
in the background.
UPPER LEFT - Laser-ranging
equipment. somewhere east of Men/o
Park, Calif. Only one of many
sophisticated devices used to detect
earth movement and changes.
Seismology and earthquake
prediction is greatly hampered by a
lack of widespread instrumentation
to detect changes and by the fact
that reliab/e data for any given
area is less than 15 years old.
The
PLAIN TRUTH September 1976
~
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e:
~
Q..
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;::
1
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~
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