The 1877 Iquique earthquake occurred at 21:16 local time on 9 May (0:59 on 10 May UTC). It had a magnitude of 8.5 on the surface wave magnitude scale. It has also been estimated to be a 9 magnitude earthquake.[2] It had a maximum felt intensity of XI (Extreme) on the Mercalli intensity scale[3] and triggered a devastating tsunami. A total of 2,541 people died, mainly in Peru and what is now northernmost Chile, with some deaths also reported from Hawaii and Japan.