Read, Watch or Listen

Tuckaleechee Caverns in Townsend, Tennessee, houses the world's most sensitive seismic station, originally used by the US military during the Cold War to detect nuclear testing. The station, monitored 24/7, transmits data to organizations like the Department of Defense and the CTBTO. It can pinpoint nuclear blasts and major earthquakes globally. A recent, deeper-than-usual earthquake was felt, prompting concerns about potential aftershocks, though their prediction remains impossible.

Prepared by Olivia Bennett and reviewed by editorial team.