Tsunami observed in American Samoa after Tonga volcano erupts

By Jahnavi Nidumolu and Renju Jose (Reuters) -An underwater volcano off Tonga erupted on Saturday, triggering a tsunami warning for several South Pacific island nations, with footage on social media showing waves crashing into homes. Tsunami waves were observed in Tonga's capital and the capital of American Samoa, a U.S.-based tsunami monitor said. The eruption at 0410 GMT of the Hunga Tonga-Hunga Ha'apai underwater volcano, located about 65 km (40 miles) north of Nuku'alofa, caused a 1.2 metre tsunami, Australia's Bureau of Meteorology said. The agency said it continued to monitor the situati...