Heavy rain is again raising the risk of mudslides in Southern California burn areas where evacuations have been ordered during a powerful storm that flooded roads and toppled trees further north.
Portions of Southern California remain under siege as two large fires threatened numerous Ventura County communities.
Southern California simmered Thursday in the early stages of a potentially dangerous heat wave that forecasters predicted would send temperatures soaring to record levels and create conditions that could readily cause wildfires to spread.
A light earthquake was felt widely in Southern California before dawn Tuesday but there were no reports of damage.
The storm that drenched California this week brought much-needed rain to the state, which has been slipping back into drought conditions due to a dry winter that only turned wet and snowy this month.
Authorities ordered tens of thousands of people to flee their homes as a powerful storm headed toward California, where many communities on Tuesday face the threat of flooding and destructive debris flows from areas burned bare by huge wildfires.
The powerful earthquake that struck beneath the Gulf of Alaska early Tuesday generated a tsunami, but before gauges could show that it was very small, warnings went out to a vast swath of the state and British Columbia, while a lower-level alert targeted the rest of the West Coast.
Torrents like the ones that carved deadly and destructive paths through Montecito, California, during a powerful storm early are commonly described as mudslides, but geologists and emergency workers call them debris flows.