but no tsunami warning was issued. The 4:10 a.m. quake measured 4 on the Japanese seismic intensity scale of 7 in part of the two prefectures, the Japan Meteorological Agency said. Areas of the ...
With Australia, Indonesia and India as regional tsunami service providers, 27 national tsunami warning centers can now receive tsunami threat alerts within 10–15 minutes of a seismic event. More than ...