Extensive underwater volcanic activity

Quakes in American Samoa likely to be linked to volcanic activity

The US Geological Survey said earthquakes have been felt over the past few days and they are ongoing.

The agency said the quakes may be caused by a volcano, but a large eruption like the Hunga Tonga Hunga Ha'apai in January is extremely unlikely.

The territory's Emergency Operations Centre was activated in response to reports from residents of Ta'u and Ofu islands in the Manu'a group of the grounds shaking.

The first shakes were reported at 3pm local time on Tuesday with the last reports at 11pm that day.