Many residents in our coastal area have been concerned by the sounds of seismic rumblings and bangs in recent times. Linwood Quarry inform us in advance of their dates and times of blasting in the quarry. We have discovered through discussions with Boral and local residents that the loud noises and rumbles occurring outside these dates are most likely to be created when the Port Wakefield Army Barrack’s firing range are conducting exercises. The impacts are transmitted through the shared geological strata and air borne noise depending on weather conditions.
That is not to say that there are natural rumbles in our area: here is a site that provides information on earthquake/seismic activity:
Earthquake monitoring network
The South Australian seismic network