Nature

Berkeley computer mistakenly reports Napa quake

The U.S. Geological Survey says a computer at its Berkeley station erroneously concluded a a magnitude 5 earthquake occurred in Napa (above).

Richard Buckmaster, a geophysicist at the agency’s National Earthquake Reporting Center, says officials are trying to determine why the computer generated the “dubious or erroneous” alert Friday, according to an Associated Press report.

Such false alarms are, we are reassured to learn, rare in California.

Photo: Tracey Taylor.

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  • d

    may have been caused by the 6.3 in Alaska?