ABSTRACT

The Albuquerque Seismological Laboratory (ASL) has preserved a collection of photographs of seismographic equipment, stations, and drawings used by the U.S. Coast and Geodetic Survey (USC&GS) in the early‐to‐mid‐twentieth century. The photographs were transferred to ASL from the U.S. Department of Commerce building in Washington, D.C., after ASL became established as a USC&GS facility for seismological research and instrumentation testing in 1961. The photographs were used in publications to document USC&GS activities or used internally to document instrument installation, operation, and/or components. The historic photograph collection is made up of hundreds of photographs that were originally printed in the 1930s and 1940s. Our hope is that the archival of these records, as well as brief descriptions about their significance, will help preserve some of the knowledge about seismological advances in the United States during this time period. We provide digital scans of the complete ASL historic photo collection and discuss the historical context of select images in the Ⓔ electronic supplement to this article.

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