San Bernardino shaken by 3.5 earthquake — its third jolt of the day
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After a pair of small earthquakes shook San Bernardino on Monday morning, the city was jolted by another earthquake just before 10 p.m., according to the U.S. Geological Survey.
It was the second magnitude 3.5 earthquake of the day.
The first occurred at 9:44 a.m. less than a mile from San Bernardino and was followed by a magnitude 3.0 earthquake four minutes later, the USGS reported.
The Monday night earthquake struck at 9:58 p.m. in San Bernardino, two miles from Highland and three miles from Lake Arrowhead, the agency said. It occurred at a depth of 5.1 miles.
The earlier temblors occurred in the same area.
The initial quake occurred at a depth of 4.7 miles near Harrison Canyon Road and the second at a depth of 4.5 miles near David Way North in San Bernardino. A spokesperson for USGS could not immediately be reached for comment.
Following the third quake, residents of San Bernardino reported feeling light shaking. Surrounding communities including Ontario and Riverside reported weak shaking.
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When the morning earthquakes struck, Dorothy Chen-Maynard, a nutritional science expert who also teaches at Cal State San Bernardino, was in the middle of a lecture about metabolism with future dietitians when the earthquakes happened.
“Initially it felt like a jolt, then a bit of a rumble,” she said. “The first [quake] was a little stronger than the second one.”
Chen-Maynard was surprised to learn that the epicenter of the second quake was just a street over from her house.
“I hope my home is OK,” she said. “I’ll find out later in the day.”
She said after the quakes, the lecture on metabolism switched to a discussion about earthquake preparedness and safety.
People are much more important than kits. People will help each other when the power is out or they are thirsty. And people will help a community rebuild and keep Southern California a place we all want to live after a major quake.
In the last 10 days, there have been no earthquakes of magnitude 3.0 or greater centered nearby.
An average of 234 earthquakes with magnitudes between 3.0 and 4.0 occur per year in California and Nevada, according to a recent three-year data sample.
Are you ready for when the Big One hits? Get ready for the next big earthquake by signing 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, Lucy Jones’ most important advice and more at latimes.com/Unshaken.
This story was produced with the assistance of Quakebot, a computer application that monitors the latest earthquakes detected by the USGS. A Times editor reviewed the post before it was published. If you’re interested in learning more about the system, visit our list of frequently asked questions.
