April is Earthquake Preparedness Month and California officials are making sure the state's primary water supply is protected.

Richard Atwater with the Southern California Water Committee says the increased seismic activity in the Los Angeles area the past few weeks is a reminder of how important it is to check on facilities that store our water. 

"Our water infrastructure is vulnerable to major earthquakes.  Whether it's the Colorado aqueduct from the Colorado river to Southern California.  Certainly the state water project."

Atwater says there is a need to invest in modernizing statewide water infrastructure in California.  

He points out the water from the Sierra Nevada Mountains is currently sent through the Sacramento-Joaquin Delta's 100-year old dirt levees. 

Those mountains supply water to 26 million Californians and millions of acres of farmland. 

On that note, an earthquake hoax is now scaring residents, just days after a 5.1 magnitude quake shook up the Southland.  The "Los Angeles Times" reports U.S. Geological Survey officials confirm a letter with the agency's logo that warns of an "impending large quake" is a hoax.  

The letter was sent to residents in Orange County, telling them that California is issuing a statewide warning.  The agency says residents should check the USGS website for the most accurate and up-to-date earthquake information.

The main building of a school in Brea that suffered significant damage during Friday's earthquake could remain closed for six weeks.  The "Orange County Register" reports Brea Olinda Unified School District officials say asbestos found in the dust and debris at Fanning Elementary resulting from the 5.1 magnitude quake could shut down the school well beyond spring break.