Tsunami threat recedes from huge Pacific volcanic eruption

An undersea volcano eruption at the Pacific nation of Tonga (Japan Meteorology Agency via AP)

The tsunami threat around the Pacific from a huge undersea volcanic eruption has begun to recede, while the extent of the damage to Tonga remains unclear.

Satellite images showed the spectacular eruption that took place on Saturday evening, with a plume of ash, steam and gas rising like a mushroom above the blue Pacific waters.