Residents near Truckee reported shaking late Thursday as a magnitude 4.7 earthquake was the largest of three that struck the area in an 11-minute span, according to the U.S. Geological Survey.
The magnitude was initially reported at 5.1, but was quickly downgraded.
It was centered about 11 miles northwest of Truckee at a depth of roughly two miles. The largest earthquake was preceded by a magnitude 3.2 at 9:26 p.m., and followed by an aftershock measuring magnitude 3.1 at 9:37 p.m.
"There's several regional fault systems that run through the area," said USGS Geophysicist Randy Baldwin. "That's probably still to be determined."
There were no reported injuries. No one was hurt.
"There's usually several each decade about this size (in the area)," Baldwin added. An estimated 13,500 people across Nevada County were immediately impacted by a power outage due to the earthquakes.
"The first rumbling last about five seconds. The house didn't shake. It was just something we hadn't heard before. We thought it was a plane flying or a rock slide or something," Soda Springs resident Tom Applebaum told KCBS Radio.
"Shortly thereafter, there was another rumbling and then a pretty big bang. The house shook at that point," he added.
Residents in Sacramento and Roseville reported feeling shaking, as did people in the Reno area.
Felt the Truckee earthquake from Sacramento but it was so small and quick I actually doubted myself. Sat up straight, looked around to see if I noticed things shaking and convinced myself I was imagining things. That's only the 2nd earthquake I've felt since moving here.
— I’m here so I don’t get fined 🪴 (@kazookah) May 7, 2021
Many mobile users in the Bay Area got an early ShakeAlert warning signaling a much larger earthquake at a magnitude of 6.0 and possible shaking, neither of which turned out to be the case.
Many mobile users reported getting this alert warning of a magnitude 6.0 earthquake.Eric Brooks/KCBS Radio
