8.5 Earthquake & Tsanumi Warning

[Chris Cram]

The Shake : VFP SHZ UW : Flag Pt. Mount Hood, OR (09/29/2009(12))
http://www.pnsn.org/WEBICORDER/PNSN/...009092912.html


From : http://www.prh.noaa.gov/ptwc/
29 Sep 2009 18:57 Samoa Islands Region Watch Supplement Statement Haw

BULLETIN
TSUNAMI MESSAGE NUMBER 2
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
857 AM HST TUE SEP 29 2009

TO - CIVIL DEFENSE IN THE STATE OF HAWAII

SUBJECT - TSUNAMI WATCH SUPPLEMENT

A TSUNAMI WATCH CONTINUES IN EFFECT FOR THE STATE OF HAWAII.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS
NOTE MOMENT MAGNITUDE INCREASE TO 8.3

ORIGIN TIME - 0748 AM HST 29 SEP 2009
COORDINATES - 15.3 SOUTH 171.0 WEST
LOCATION - SAMOA ISLANDS REGION
MAGNITUDE - 8.3 MOMENT
MAGNITUDE - 8.0 RICHTER (MS)

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

GAUGE LOCATION LAT LON TIME AMPL PER
------------------- ----- ------ ----- --------------- -----
APIA UPOLU WS 13.8S 171.8W 1832Z 0.70M / 2.3FT 08MIN
PAGO PAGO AS 14.3S 170.7W 1812Z 1.57M / 5.1FT 04MIN

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.

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

0111 PM HST TUE 29 SEP 2009

MESSAGES WILL BE ISSUED HOURLY OR SOONER AS CONDITIONS WARRANT.