Original sentence: On August 16 1868, Arica was devastated by a tsunami which followed a magnitude 8.5 earthquake in the Peru-Chile Trench off the coast
Edited sentence: An officer of the US ship Wateree, L.Billings, who later became a rear admiral, in 1915 published a horrifying account of his experience as a witness of this earthquake in the Peruvian coast.On August 16 1868, the Peruvian port of Arica was devastated by a tsunami which followed a magnitude 8.5 earthquake in the Peru-Bolivia Trench off the coast