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Microseisms in North America

Gutenberg, B. (1931) Microseisms in North America. Bulletin of the Seismological Society of America, 21 (1). pp. 1-24. ISSN 0037-1106.

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Our most sensitive seismographs are never at rest. They show that there are always small movements of the earth's crust which are called "microseisms." Investigations (1) have shown that there are different kinds of such movements, caused by traffic, industry, wind, rain, waterfalls, waves beating against the coasts, freezing of the soil, and probably some other causes. In the following we shall deal only with that kind of microseisms which is characterized by a regular, nearly sinusoidal motion with periods in general between four and ten seconds. These have been found throughout the world.

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Additional Information:Copyright © 1931, by the Seismological Society of America. Received February 12, 1931.
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Balch Graduate School of the Geological Sciences55
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:47923
Deposited By: George Porter
Deposited On:04 Aug 2014 21:48
Last Modified:03 Jan 2020 22:35

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