WEPA40 RJTD 041404 TSUNAMI BULLETIN ISSUED BY JMA AT 1404Z 4 FEB ORIGIN TIME 1356Z 4 FEB PRELIMINARY EPICENTER LAT 23.9 N. LON 121.6 E. TAIWAN REGION FOCAL DEPTH 10 KM MAG 6.5 NO SIGNIFICANT TSUNAMI IS EXPECTED IN COASTAL AREAS OF JAPAN NO FURTHER ACTION WILL BE TAKEN =