Mother nature shakes.

In Australia there are on average 100 earthquakes of magnitude three or more each year. About every eight years there is a potentially damaging earthquake of magnitude six or more. In the Philippines last week they experienced two earthquakes in two days, both above a magnitude of six. Dr Jonathon Bathgate is a senior seismologist with Geoscience Australia and he joined us to this morning to discuss this natural disaster. 

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