New data to provide clues to Burakin earthquakes
23 February 2004
Geoscience Australia today released new data that will provide clues to recent earthquake activity in the Burakin area of Western Australia. The airborne geophysical data will be used to better understand the deep geological structures controlling regional earthquake activity. It will also be used to assist in geological and environmental soil mapping in the area.
Burakin has been Australia's most seismically active region for the past 40 years: in 2001-2002, over 18 000 earthquakes occurred in the area. Understanding why Burakin is earthquake prone in the present-day may lie in evidence of ancient earthquake activity. However, this evidence is not always visible at the surface, as ancient faults may be covered by sand and dirt. Geophysical techniques allow scientists to "see" through these surface materials, revealing the rocks and structures hidden below.
The Burakin airborne geophysical data include new survey data and data previously acquired by private companies. The data, comprising of magnetic, gamma-ray and elevation information, can be downloaded free of charge using our new online Geophysical Archive Data Delivery System (GADDS) which is accessible using a standard web browser.
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