Authors / CoAuthors
Mathews, E.J. | Bathgate, J.B. | Allen, T.I. | Collins, C.D.N. | Bevan, K. | Lissogourski, M. | Saikal, L. | Herrmann, R.
Abstract
On the 16 April 2011 (05:31:18 UTC) Geoscience Australia (GA) recorded a ML 5.3 earthquake 50 km west of Bowen in central Queensland. This event was widely felt on the north Queensland coast and was followed by a number of aftershocks, which resulted in GA receiving more than 400 felt reports. Fifty earthquakes of magnitude <5.0 have been recorded in the region between Charters Towers and Mackay since 1900. However, during this same period only one M >5.0 earthquake is recorded; a ML 5.7 event located north of Ravenswood in December 1913. The April 2011 Bowen main shock was quickly followed by five smaller aftershocks ranging in magnitude from ML 3.2 to 4.1. Aftershocks were recorded by permanent seismic stations (e.g. Charters Towers, Eidsvold, Quilpie and Roma), however, the location, magnitude and depth of the smaller events is improved by four temporary stations which were established within four days of the main shock. The temporary sites were deployed between 10 and 48 km from the epicentre of the main shock to maximise the azimuthal coverage. Three-component seismometer and accelerometer data were recorded for a total of six weeks. With this dataset, existing information about several aftershocks was improved.
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nonGeographicDataset
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72810
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Keywords
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- External PublicationConference Paper
- ( Theme )
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- earthquakes
- ( Theme )
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- seismology
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_Internal
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2011-01-01T00:00:00
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