Pacific tsunami warning recedes; Tonga covered by ash cloud

The tsunami threat throughout the Pacific from a huge underwater volcanic eruption has begun to recede, though the massive ash cloud covering Tonga is preventing surveillance flights from New Zealand to assess the extent of damage.

What is a tsunami and what causes them?

All coastlines around the world are vulnerable to tsunamis, so it's important to know your community's hazard and evacuation plans in case they're needed.

Out-of-town visitors still stranded in snow-struck Sierra

With snowbanks towering more than a story high and blizzard conditions making driving difficult, there are plenty of Christmas holiday travelers who haven't been able to leave the Sierra and find their way home.

Typhoon hits Philippines; crew rescues infant from floodwaters

The Philippine Coast Guard released a video from Cagayan de Oro showing two crew members in chest-high water pushing a floating plastic tub, which they said had an infant inside. The men wrapped the month-old baby in a blanket and sheltered them with an umbrella.