WEPA40 RJTD 231225 TSUNAMI BULLETIN ISSUED BY JMA ORIGIN TIME 1218Z 23 JUN PRELIMINARY EPICENTER LAT27.7N. LONG140.3E. S OFF CENTRAL HONSHU FOCAL DEPTH 483KM. MAG6.9 NO SIGNIFICANT TSUNAMI IS EXPECTED ALONG JAPAN COASTS NO FURTHER ACTIONS WILL BE TAKEN=