Shaking detected near Catalina was not actually an earthquake, USGS says
What was initially reported to be a 4.0 earthquake Friday morning 16 miles from the city of Avalon on Catalina Island was, in fact, not an earthquake, the U.S. Geological Survey said.
In a tweet, the USGS said ShakeAlert, an earthquake early-warning system, "detected a non-earthquake event which triggered our system. Fortunately, no public alerts were sent out. This is a bit of a first time for us because these events happen so rarely."
Although this turned out not to be an earthquake, you'll still want to be ready for the next big quake. Sign up for our Unshaken newsletter, which breaks down emergency preparedness into bite-sized steps over six weeks. Learn more about earthquake kits, which apps you need, seismologist Lucy Jones' most important advice and more at latimes.com/Unshaken.
This story originally appeared in Los Angeles Times.
