Story byDrake BentleySat, January 17, 2026 at 5:30 AM UTC·1 min readSeahawks install sensors to measure 12s' earthquake-like energy against 49ers originally appeared on The Sporting News. Add The Sporting News as a Preferred Source by clicking here. The Seattle Seahawks have installed seismic sensors inside Lumen Field to measure fan-generated ground motion during the 2026 NFL playoffs. AdvertisementAdvertisementAdvertisementThe Pacific Northwest Seismic Network (PNSN) set up six stations throughout the stadium to capture the seismic energy produced by the collective movement of the 12s, the Seahawks’ famously passionate fanbase. The initiative builds on previous efforts and offers insight into the home-field advantage for Seattle ahead of their divisional round matchup with the San Francisco 49ers. MORE: 49ers vs. Seahawks props: Best player prop bets and Anytime TD odds for NFL Divisional Round playoffs"With these six seismometers, we have Lumen Field 'wired up' and we can record exactly how the excitement of the crowd leads to shaking of the ground, much like an earthquake does," PNSN Director Harold Tobin at the University of Washington said in a statement to Seahawks. com.