There was a magnitude 7.8 earthquake about 20 km offshore of northern Chile on 30 July 1995 which produced a tsunami of 1.3 m at Caldera and which was seen in many records across the Pacific (information from NTF, Australia).
Documentation added 2001-01-26
For a review of the new Chilean tide gauge network, see "Tides in the Chilean Coasts" by Juan J. Fierro, Hydro International,Jan/Feb 2001, pp.7-9. Coastline prone to earthquake activity; Data possibly affected as a result
Documentation added 2010-10-25
Because of the occurance of the earthquake in 1995 and because the area is prone to earthquake activity the station has been flagged.
Documentation added 2015-07-13
A permanent station was established at Punta Arenas in 1988 see id. 2263
Hydrographic and Oceanographic Service of the Chilean Navy Errazuriz 254 Playa Ancha Valparaiso