United States Earthquakes, 1948 Page: 1
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UNITED STATES EARTHQUAKES, 1948
This publication is a summary of earthquake activity in the United States and regions
under its jurisdiction for the calendar year 1948. The sources of noninstrumental infor-
mation used in the compilation include the United States Weather Bureau, whose observers
prepare periodic reports on local seismic activity; telegraphic information collected by
Science Service, Washington, D. C.; Bulletins of the Seismological Society of America;
special reports of the Jesuit Seismological Association and the Northeastern Seismological
Association; the Hawaiian Volcano Letter; newspaper clippings; and reports from interested
individuals. Instrumental data used in locating earthquakes are obtained from the network
of Coast and Geodetic Survey stations listed on page 00 and from other cooperating seismo-
logical stations in the United States and throughout the world.
The Coast and Geodetic Survey endeavors to coordinate efforts in collecting all types
of earthquake information with the special object of correlating instrumental earthquake
locations with noninstrumental reports received from the epicentral areas. This is done
by local organizations making intensive regional investigations in California and else-
where, and, when necessary, by the Coast and Geodetic Survey. This information serves
to adequately map the seismic areas of the country and promote public safety through
a better understanding of earthquake phenomena. Since the success of the general infor-
mation service depends largely on the cooperation of local officials and citizens, all are
urged to fill out and return earthquake questionnaires.
Earthquake information services.-The Coast and Geodetic Survey maintains a Seis-
mological Field Survey in San Francisco to collect earthquake information and make field
investigations of strong shocks in the Pacific Coast and Western Mountain States. Details
concerning damage, destruction, and other effects are enumerated in the quarterly Abstracts
of Earthquake Reports for the Pacific Coast and the Western Mountain region. This
report is available on request from the Director of the Coast and Geodetic Survey, Wash-
ington 25, D. C. Active cooperation in this work is received from the University of
California Seismographic Station, Berkeley (Dr. Perry Byerly, in charge); and the Seismo-
logical Laboratory, Pasadena (Dr. Beno Gutenberg, Director); as well as State Collabora-
tors in Seismology. The following Collaborators served as agents of the Coast and Geodetic
Survey in their respective States in 1948:
Arizona.-Dr. Eldred D. Wilson, University of Arizona, Tucson.
Colorado.-Prof. C. A. Heiland, Heiland Research Corporation, Denver.
Idaho.-Prof. Vernon E. Scheid, University of Idaho, Moscow.
Montana.-Prof. Stephen W. Nile, Montana School of Mines, Butte.
Nevada.-Prof. Vincent P. Gianella, University of Nevada, Reno.
New Mexico.-Prof. Stuart A. Northrop, University of New Mexico, Albuquerque.
Oregon.-Dean E. L. Packard, Oregon State College, Corvallis.
Utah.-Prof. J. Stewart Williams, Utah State Agricultural College, Logan.
Washington.-Dr. Harold E. Culver, Washington State College, Pullman.
Wyoming.-Prof. Horace D. Thomas, University of Wyoming, Laramie.
Among the commercial agencies on the west coast rendering valuable services are
telephone, power, oil, railroad, and especially insurance companies. Certain concerns
interested in the manufacture of earthquake-resistant building materials are also active
together with various organizations of structural engineers and architects.
In other parts of the country the Jesuit Seismological Association with central office
at St. Louis University collects information in the central Mississippi Valley area (Rev.
Dr. James B. Macelwane, S. J., Dean of the Institute of Technology). The Northeastern
Seismological Association with headquarters at Weston College, Weston, Mass. (Rev.
Daniel J. Linehan, S. J., in charge) undertakes similar work in the northeastern States.
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United States Earthquakes, 1948, report, 1948; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc40341/m1/4/: accessed April 23, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.