Thunderstorms and fiber-optic cables unlock new seismic imaging method

Scientists have found that thunderstorms generate seismic waves capable of mapping underground geological features. The method leverages fiber-optic cables already laid in the ground to detect these naturally occurring vibrations. This approach offers a passive, cost-effective alternative to traditional active seismic surveys, which typically require artificial energy sources. By combining atmospheric events with existing infrastructure, researchers can build detailed pictures of subsurface structures without additional drilling or equipment deployment.