WEPA40 RJTD 171303 TSUNAMI BULLETIN ISSUED BY JMA AT 1303Z 17 DEC ORIGIN TIME 1051Z 17 DEC PRELIMINARY EPICENTER LAT 4.5 S. LON 153.6 E. NEW GUINEA REGION FOCAL DEPTH 30 KM MAG 7.9 NO SIGNIFICANT TSUNAMI IS EXPECTED IN COASTAL AREAS OF JAPAN NO FURTHER ACTION WILL BE TAKEN =