According to the worldwide earthquake observation network (GEOFON) of the German Research Centre for Geosciences (GFZ), the earthquake occurred on September 16th, 2015 at 19:54 (local time) on the Chilean coast (Coordinates: 31.55°S and 71.55°W) northwest of the capital Santiago de Chile. The quake occurred at a depth of 29 kilometers. According to media reports a few people died and many were injured. Over a million people had to leave their homes.
For the Pacific region a tsunami warning was issued immediately. Waves of up to four meters high reported for some areas along the Chilean coast (sea level data of a northerly located station, Intergovernmental Oceanic Commission, IOC).
Tsunami alerts were issued for parts of California and for a couple of states in the western Pacific region e.g. New Zealand.