A Caltech Library Service

Unexplained phases in seismograms

Gutenberg, B. (1949) Unexplained phases in seismograms. Bulletin of the Seismological Society of America, 39 (2). pp. 79-92. ISSN 0037-1106. doi:10.1785/BSSA0390020079.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


The first period in the investigation of earthquake waves propagated through the interior of the earth ended when times and amplitudes of all major phases in records had been explained on the basis of two curves, one giving the velocity of longitudinal waves as a function of depth throughout the earth, the other the velocity of transverse waves between the surface and the core. This research is now in its second phase, in which relatively small deviations in observed times, unexpectedly large or small amplitudes, multiplicity in phases, unexplained phases and other unexpected features of seismograms are the subject of investigations.

Item Type:Article
Related URLs:
URLURL TypeDescription
Additional Information:Copyright © 1949 by the Seismological Society of America. Manuscript received for publication August 16, 1948.
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Caltech Division of Geological Sciences462
Issue or Number:2
Record Number:CaltechAUTHORS:20140731-125850516
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:47716
Deposited By: George Porter
Deposited On:31 Jul 2014 20:22
Last Modified:11 Mar 2022 16:17

Repository Staff Only: item control page