Passive seismic is a variation of traditional seismic that uses natural sounds in the environment instead of explosives, airguns, vibroseis trucks.. As such it is more environmentally friendly.
A couple of examples.
Geoscience Australia +others and Ausarray
Video link
Large number of technical papers referenced in the GA link above for any who are interested.
This array is causing a stir amongst some in the field but the rollout is considered too slow in some areas so others are adding to the system. Heard a comment about this at the conference where I first came across this.
What it means for a small very local survey I don't know. Certainly appears like it will be useful for very big picture concepts. Longer time frames might help detail?
Another company example GRX
Read this after my post above. Synchronicity?
This shows the depth resolution is possible as does the Ausarray down to the Moho.
Ann: June 2024 Quarterly Activities and Cash Flow Report, page-63
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