http://forecast.weather.gov/wwamap/wwatxtget.php?cwa=hfo&wwa=tsunami%20watch wrote:

TSUNAMI WATCH CONTINUES IN EFFECT FOR THE STATE OF HAWAII.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME - 1254 PM HST 16 SEP 2015
COORDINATES - 31.5 SOUTH 72.0 WEST
LOCATION - NEAR THE COAST OF CENTRAL CHILE
MAGNITUDE - 8.3 MOMENT

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

GAUGE LOCATION LAT LON TIME AMPL PER
------------------- ----- ------ ----- --------------- -----
VALPARAISO CL 33.0S 71.6W 2350Z 1.62M / 5.3FT 40MIN
CHANARAL CL 26.4S 70.6W 0010Z 0.67M / 2.2FT 34MIN
JUAN FERNANDEZ 33.6S 78.8W 0008Z 0.97M / 3.2FT 08MIN
COQUIMBO CL 30.0S 71.3W 2339Z 3.11M / 10.2FT 20MIN
BUCALEMU CL 34.6S 72.0W 2334Z 0.46M / 1.5FT 24MIN
CALDERA CL 27.1S 70.8W 2343Z 0.50M / 1.6FT 30MIN
SAN ANTONIO CL 33.6S 71.6W 2358Z 0.86M / 2.8FT 18MIN
DART 32402 26.7S 74.0W 2326Z 0.12M / 0.4FT 36MIN

LAT - LATITUDE (N-NORTH, S-SOUTH)
LON - LONGITUDE (E-EAST, W-WEST)
TIME - TIME OF THE MEASUREMENT (Z IS UTC IS GREENWICH TIME)
AMPL - TSUNAMI AMPLITUDE MEASURED RELATIVE TO NORMAL SEA LEVEL.
IT IS ...NOT... CREST-TO-TROUGH WAVE HEIGHT.
VALUES ARE GIVEN IN BOTH METERS(M) AND FEET(FT).
PER - PERIOD OF TIME IN MINUTES(MIN) FROM ONE WAVE TO THE NEXT.

NOTE - DART MEASUREMENTS ARE FROM THE DEEP OCEAN AND THEY
ARE GENERALLY MUCH SMALLER THAN WOULD BE COASTAL
MEASUREMENTS AT SIMILAR LOCATIONS.

EVALUATION

BASED ON ALL AVAILABLE DATA A TSUNAMI MAY HAVE BEEN GENERATED BY
THIS EARTHQUAKE THAT COULD BE DESTRUCTIVE ON COASTAL AREAS EVEN
FAR FROM THE EPICENTER. AN INVESTIGATION IS UNDERWAY TO DETERMINE
IF THERE IS A TSUNAMI THREAT TO HAWAII.

IF TSUNAMI WAVES IMPACT HAWAII THE ESTIMATED EARLIEST ARRIVAL OF
THE FIRST TSUNAMI WAVE IS

0311 AM HST THU 17 SEP 2015