Tsunami observed in American Samoa following volcanic activity in Tonga

Tsunami waves measuring 2 feet in height were observed by sea-level gauges at the capital of the U.S. territory of American Samoa following volcanic activity in Tonga, the U.S.-based Pacific tsunami warning center said.

The tsunami threat continues and sea level fluctuations and strong ocean currents pose hazards along beaches in harbors, the tsunami monitor said in a statement.