The 1730 Valparaíso earthquake occurred at 03:45 local time (08:45 UTC) on July 8. It had an estimated magnitude of 8.7 and triggered a major tsunami with an estimated magnitude of M_t=8.75,^[2] that inundated the lower parts of Valparaíso.^[3]The earthquake caused severe damage from La Serena to Chillan, while the tsunami affected more than 1,000 km (621.37 mi) of Chile's coastline.^[1]

• http://en.wikipedia.org/wiki/1730 Valparaiso earthquake