ALERT: West Coast Under Tsunami Threat After Undersea Volcano Eruption
Update (1205ET): Social media reports indicate a surge of water has begun to hit the United States West Coast after a massive undersea volcano erupted Saturday off the South Pacific island of Tonga.
The National Weather Service's National Tsunami Warning Center said waves of 1 to 3 feet are expected for parts of the West Coast.
In Santa Cruz, a coastal town in central California, someone tweeted a video of the rising water level.
Flooding is occurring in parts of Santa Cruz.