What causes a tsunami?... A tsunami is a large ocean wave that is caused by sudden motion on the ocean floor. This sudden motion could be an earthquake, a powerful volcanic eruption, or an underwater landslide. The impact of a large meteorite could also cause a tsunami.
Agness, Oregon. Agness is an unincorporated community in Curry County, Oregon, United States. It is near the confluence of two Wild and Scenic riversâthe Lower Rogue and the Illinois. Agness post office was established October 16, 1897. It was named after Agnes, the daughter of the first postmaster, and subsequently misspelled.
Earthquake activity: Agness-area historical earthquake activity is slightly above Oregon state average. It is 427% greater than the overall U.S. average. On 1/31/1922 at 13:17:28, a magnitude 7.6 (7.6 UK, Class: Major, Intensity: VIII - XII) earthquake occurred 155.6 miles away from the city center.