WEPA40 RJTD 120252 TSUNAMI BULLETIN ISSUED BY JMA AT 0252Z 12 DEC ORIGIN TIME 0244Z 12 DEC PRELIMINARY EPICENTER LAT 40.9 N. LON 143.0 E. E OFF NORTHERN HONSHU FOCAL DEPTH 16 KM MAG 6.7 TSUNAMI ADVISORIES ARE IN EFFECT FOR THE FOLLOWING COASTAL AREAS OF JAPAN: PACIFIC COASTS OF NORTH JAPAN =