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Surface-wave magnitudes of some early Australian earthquakes

Created 17/10/2025

Updated 17/10/2025

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Surface-wave magnitudes (Ms) of 35 of the larger Australian earthquakes that occurred before 1960 have been determined from seismograms written at Riverview (Sydney), Melbourne, Adelaide, and Perth. Magnitudes were computed by the methods of Nuttli (1973) and Marshall and Basham (1973) and found to be consistent. Empirical corrections were applied to the horizontal component recordings to bring them into agreement with vertical component amplitudes, implicit in the definition of the Ms scale. Richter magnitudes (ML) were plotted against the adopted (average) surface-wave magnitudes for 19 earthquakes for which ML values were available. However, the scatter of the data precludes the adoption of a definitive relation for MS on ML for the Australian continent.

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Additional Info

Field Value
Title Surface-wave magnitudes of some early Australian earthquakes
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/b8a83a65-1de7-4d15-b3cb-942af3989b8c
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage Australia
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Surface-wave magnitudes of some early Australian earthquakes". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/surface-wave-magnitudes-of-some-early-australian-earthquakes