####018000306#### WEPA40 RJTD 270840 TSUNAMI BULLETIN ISSUED BY JMA AT 0840Z 27 APR ORIGIN TIME 0835Z 27 APR PRELIMINARY EPICENTER LAT 27.9 N. LON 140.0 E. OGASAWARA ISLANDS REGION FOCAL DEPTH 538 KM MAG 6.9 NO SIGNIFICANT TSUNAMI IS EXPECTED IN COASTAL AREAS OF JAPAN NO FURTHER ACTION WILL BE TAKEN=