I know CNN and HawaiiNewsNow have posted articles that an earthquake has struck Chile today (9/16/15).

There is a Tsunami watch in effect for the State of Hawaii with an estimated arrival of 3:06 am HST on Thursday September 17, 2015.

The link below is to NOAA's Pacific Tsunami Warning Center:

http://ptwc.weather.gov/

I suspect more details would be announced around this evening newscast.