Just a day after a magnitude-4.4 earthquake struck the same region, a magnitude-3.2 earthquake struck three miles north of Fontana at 1:50 a.m. Thursday morning, according to the United States Geological Survey.
READ: Early Morning 4.4-Magnitude Earthquake Shakes Southern California
One Twitter user told NBCLA.com that he felt a "nice sharp jolt in Fontana," while Rialto resident Darleen Abrams posted on Facebook that the earthquake "sounded like a truck hit the house and shook it."
Two hours earlier, a magnitude-3.8 earthquake hit 7 miles west of Corona in Riverside County.
READ: 3.8-Magnitude Earthquake Near Corona
The epicenter of the Corona earthquake is approximately 36 miles from the Fontana earthquakes.
READ: NBCLA Livetweeting the 1994 Northridge Earthquake in Real Time
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Friday marks the 20th anniversary of the Northridge Earthquake.
