•  
  •  
 

Document Type

Research

Abstract

The Des Moines Seismograph Station started operation December 20, 1934, using a single component to record east-west motion. On March 15, 1935, a second instrument was placed in operation to record north-south motion.

Publication Date

1935

Journal Title

Proceedings of the Iowa Academy of Science

Volume

42

Issue

1

First Page

133

Last Page

138

Copyright

©1935 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.