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The Calingiri earthquake, March 1970

While not particularly notable in terms of magnitude, the Calingiri earthquake of March 1970 is significant in that is one of only 5 known Australian earthquakes to cause surface faulting. It is also in the Southwest seimic zone of Western Australia, and occurred relatively close to the Meckering and Cadoux earthquakes in space and time. At the time of it's occurrence, it was considered to be related to the relatively recent Meckering earthquake ( October 1968), but a connection has yet to be clearly demonstrated.

DATE10 MARCH 1970
TIME1715 GMT (03:15 Local Time)
LATITUDE31.11 South (+/- 10 km)
LONGITUDE116.46 Eest (+/- 10 km)
MAGNITUDE5.9
MAX FELT INTENSITYVI (MM scale)

The maximum felt intensity for the earthquake was VI (6) on the Modified Mercalli scale. The surface fracture was a slightly arcuate sinistral thrust fault, approximately 3 km long. The maximum throw was 38 cm, maximum heave was 25 cm, and the maximum strike slip movement was 14 cm.

Reference - Gordon, F.R.,  & Lewis,J.D.  Geol Surv. WA Bulletin 126 (1980)
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