United States Earthquakes, 1929 Page: 1
The following text was automatically extracted from the image on this page using optical character recognition software:
UNITED STATES EARTHQUAKES, 1929
This publication includes earthquakes of regions under the juris-
diction of the United States, though in the case of the Hawaiian and
the Philippine Islands earthquakes of volcanic origin are not included
and only severe earthquakes are included in the case of the Philip-
pine Islands since reports are published in Manila. Earthquakes
adjacent to the United States and felt within its borders or those in
the regions under its jurisdiction are described except that, in the case
of the Canadian earthquakes felt within the United Stated, a general
description only is given, as details are given in the Canadian report.
As a reciprocal arrangement United States earthquakes felt in Canada
are published in detail in this volume. The principal earthquakes
of the year which were very widely recorded are given regardless of
location, and instrumental details for these are included.
It has been decided not to give individual credit for information by
individuals. In omitting this the bureau wishes to express its appre-
ciation to the various organizations and individuals who have made
it possible to prepare descriptions of the earthquakes of this country
with a completeness and accuracy that has never before been possible.
The principal sources of information are as follows:
United States Weather Bureau.
Division of geology and geography of the National Research Council, Arthur
Central office of the Jesuit Seismological Association at St. Louis, Mo.
The San Francisco field station of the Coast and Geodetic Survey, cooperating
with the Seismological Laboratory of the Carnegie Institution and California
Institute of Technology (H. O. Wood, research associate, in charge), University
of California (Perry Byerly in charge of the seismological station), and Stanford
University. These persons are responsible for instrumental determination of
epicenters in California when given. Among the commercial agencies in this
section there are a number of cooperators, including the Pacific Telephone &
Telegraph Co., Great Western Power Co., National Board of Fire Underwriters,
Southern California Telephone Co., Standard Oil Co. of California, Associated
Oil Co., Southern Pacific Railroad, and the San Diego & Arizona Railway Co.;
also a large number of other organizations and individuals.
Press dispatches (received through the courtesy of Georgetown University).
Telegraphic reports collected by Science Service. This cooperative service
was inaugurated in 1925, but through an inadvertence was not mentioned in
the report preceding this, Serial No. 483.
Reports from individuals. Prof. Harry Fielding Reid has furnished data of
Bulletin Seismological Society of America, 1929.
As a number of organizations are actively interested in the collec-
tion of noninstrumental data, a plan was adopted whereby each organi-
zation will undertake to cover a specified territory, thus avoiding
needless overlapping of effort. This work will be in addition to that
now carried on by other agencies such as the Weather Bureau and is
intended to cover the special investigation of earthquake areas.
The accompanying map (fig. 1) shows how this activity is being dis-
tributed. The eastern half of the United States, except the central
Here’s what’s next.
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
Heck, N. H. & Bodle, R. R. United States Earthquakes, 1929, report, 1931; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc40322/m1/4/: accessed April 20, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.