A powerful earthquake in the Caribbean on Thursday triggered a series of false quake alarms in California. Scientists with the U.S. Geological Survey said a wave of seismic energy confused computers that try to triangulate the location of earthquakes along the West Coast. But even though those weren’t real, hundreds of others in California in the last week were. You can find out where and when they hit from the U.S. Geological Survey, which also links to shaking maps that are updated within 10 minutes of temblors with a magnitude of 3.5 or more.
And if the ground moves for you, pop over to the site and tell them where you were when the quake hit and what you felt.
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