TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
510 PM HST SUN APR 25 2010

TO – CIVIL DEFENSE IN THE STATE OF HAWAII

SUBJECT – TSUNAMI INFORMATION

THIS STATEMENT IS FOR INFORMATION ONLY. NO ACTION REQUIRED.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME – 0500 PM HST 25 APR 2010
COORDINATES – 22.4 NORTH 124.0 EAST
LOCATION – SOUTHEAST OF TAIWAN
MAGNITUDE – 6.5 MOMENT

EVALUATION

BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII. REPEAT. A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII.

HOWEVER – EARTHQUAKES OF THIS SIZE SOMETIMES GENERATE LOCAL TSUNAMIS THAT CAN BE DESTRUCTIVE ALONG COASTS LOCATED WITHIN A HUNDRED KILOMETERS OF THE EARTHQUAKE EPICENTER. AUTHORITIES IN THE REGION OF THE EPICENTER SHOULD BE AWARE OF THIS POSSIBILITY AND TAKE APPROPRIATE ACTION.

THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS
ADDITIONAL DATA ARE RECEIVED.

---

Magnitude
6.9 (Preliminary magnitude — update expected within 15 minutes)
Date-Time
Monday, April 26, 2010 at 02:59:42 UTC
Monday, April 26, 2010 at 10:59:42 AM at epicenter
Sunday, April 25, 2010 at 16:59:42 HAST
Location
21.730°N, 124.020°E
Depth
10 km (6.2 miles) set by location program
Region
SOUTHEAST OF TAIWAN
Distances
255 km (159 miles) NE (55°) from Basco, Batan Islands, Philippines
297 km (185 miles) S (184°) from Ishigaki-jima, Ryukyu Islands, Japan
314 km (195 miles) ESE (110°) from T’ai-tung, Taiwan
854 km (531 miles) NNE (22°) from MANILA, Philippines