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Index Geophysics

Determination and interpretation of earthquake magnitude spectra


Title (Dublin Core)

eng Determination and interpretation of earthquake magnitude spectra
hrv Određivanje i interpretacija spektara magnitude potresa

Description (Dublin Core)

eng Magnitude spectra are determined for three major earthquakes of the year 1985: the Xianjiang earthquake of 23 August, and the Mexico earthquake of 19 September with its largest aftershock of 21 September. Broad-band recordings obtained at the Central Seismological Observatory of the Federal Republic of Germany (GRF) are used for the analysis. Pass-band seismograms are obtained by way of filtering the broad-band seismogram. The magnitude spectrum of an earthquake is determined from the velocity amplitude for each Fourier component. The magnitude spectrum represents the velocity amplitude density spectrum at the earthquake source scaled in magnitude units. A comparison of the magnitude spectra shows significant differences between the focal parameters of the earthquakes, even if their conventional magnitudes (m b , M s ) are similar.

Creator (Dublin Core)

Duda, Seweryn J.
Kaiser, Diethelm
Jian, Zhao

Subject (Dublin Core)

eng earthquake; magnituda
hrv potres; magnituda

Publisher (Dublin Core)

Andrija Mohorovicic Geophysical Institute

Date (Dublin Core)


Type (Dublin Core)


Format (Dublin Core)


Identifier (Dublin Core)

Source (Dublin Core)

ISSN 0352-3659 (Print)
ISSN 1846-6346 (Online)
Volume 5
Issue 1

Language (Dublin Core)


Rights (Dublin Core)

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