The 1993 Lovian earthquake, or better known as the 1993 Sylvanian earthquake or labelled as the Great Quake of Sylvania, was a magnitude 7.7 earthquake, which happened 120 miles (193 km) off the coast of Sylvania, and caused a 25 meter (85 ft.) high tsunami, which flooded some parts of the region, including Noble City in 1993. The 2006 disaster film Tension is based on the events.