Overall, the population in this region
resides in structures that are vulnerable to earthquake shaking, though
some resistant structures exist. On May 22, 1960 (UTC), a magnitude 9.5
earthquake 273 km South of this one struck Valdivia, Chile, with estimated
population exposures of 230,000 at intensity VIII and 216,000 at intensity
IX , resulting in a reported 3263 deaths from the earthquake and tsunami.
Recent earthquakes in this area have caused tsunamis, landslides, and liquefaction
that may have contributed to losses.