Researchers have developed an innovative fiber optic gyroscope for enhanced earthquake monitoring in the Campi Flegrei region of Naples, a volcanically active area. The prototype can detect small ground rotations, a key factor often overlooked in traditional seismic monitoring, providing vital data for early warning systems and risk assessments. Led by Saverio Avino from the Consiglio Nazionale delle Ricerche, the gyroscope continuously captured seismic data over five months, recording noise and ground movements from local earthquakes. The sensor employs the Sagnac effect, which measures light interference in a closed loop of optical fiber, allowing for high-resolution detection of rotation. This new capability complements an existing network of multiparametric sensors in Naples that monitor various physical and chemical parameters related to seismic activity. The addition of ground rotation measurements will enhance the understanding of volcanic earthquake signals and overall volcanic dynamics. Currently, the gyroscope captures one axis of rotational movement, with plans to develop a three-axis system for comprehensive monitoring. This research aims to pave the way for a permanent observatory to further study the seismic and volcanic phenomena of the Campi Flegrei region and improve public safety.
