From the Harvard Gazette:
“Seismic noise — the low-level vibrations caused by everything from subway trains to waves crashing on the beach — is most often something seismologists work to avoid. They factor it out of models and create algorithms aimed at eliminating it so they can identify the signals of earthquakes.
But Tim Clements thinks it might be a tool to monitor one of the most precious resources in the world — water. A graduate student working in the lab of Assistant Professor of Earth and Planetary Sciences Marine Denolle, Clements is the lead author of a recent study that used seismic noise to measure the size and water levels in underground aquifers in California. … ”
Read more from The Harvard Gazette here: Study uses seismic noise to track water levels in underground aquifers