Papua New Guinea's Mount Ulawun erupted, emitting volcanic smoke up to 15,000 meters. Japan Meteorological Agency (JMA) is assessing potential tsunami risks for Japanese coasts, particularly Izu and Ogasawara islands, within three hours of the eruption. While no tsunami warning has been issued, JMA advises coastal residents to stay cautious. The eruption raises regional concerns, prompting Japan to monitor the situation closely for potential coastal threats. . . . #internationalnews #topnews #en