A new conservancy will oversee work to improve vegetation, water quality and natural habitat in the Salton Sea. Will nearly half a billion dollars in projects be enough?

The U.S. Geological Survey said a 4.6 magnitude earthquake in California’s Salton Sea did not happen on Friday morning. The agency’s website in the morning reported that the quake happened at a depth of about 5 miles under the Salton Sea.

State officials have wrestled with the Salton Sea's deteriorating condition as its water becomes fouler and its footprint shrinks, exposing toxic dust that wafts through the region.