RANCHO CUCAMONGA — A bogus letter circulating online is warning some Califronia residents about an impending earthquake.

The hoax letter, which uses a U.S. Geological Survey logo, states, in part, “Please be advised as of this morning, March 31, 2014, the state of California is issuing a statewide warning as we have just received information from the state’s Seismic Warning Systems urging residents in the following areas to be prepared for a sizable earthquake, up to, but not limiting, a 7.4-magnitude tremor.”

In a statement on Facebook, the USGS wrote, “USGS is aware of a letter circulating on the Internet that uses our logo and warns of an impending sizable earthquake in Southern California. USGS had no part in this letter or any alleged alert. USGS does not predict earthquakes. USGS distributes reliable and timely scientific information on earthquakes and makes it all available to the public.”

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