Open AccessProgress Report on Long Period Seismographs
Author(s) -
Benioff Hugo,
Press Frank
Publication year - 1958
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1958.tb00054.x
Subject(s) - seismometer , rayleigh wave , seismology , geology , period (music) , seismic wave , mantle (geology) , surface wave , geodesy , geophysics , acoustics , optics , physics
Summary Long period seismograph systems in operation in Pasadena are described. Extension of the group velocity curves for mantle Rayleigh waves and G‐waves, the detection of these waves from earthquakes in the magnitude range 53/4–7, and the recording of unusual body waves with unsuspected long period components are among the results which have been achieved.