The United States Geological Survey said the first quake hit southeast of Ontario shortly after 10 a.m. Saturday.
ONTARIO, CA — A magnitude 3.9 quake centered in Eastvale followed shortly after a 3.5 magnitude quake in Ontario on Saturday morning, according to the United States Geological Survey.
The second quake struck at 10:34 a.m. The two quakes struck within a short distance of one another.
The larger quake was initially reported as a magnitude 4.1 quake by the United States Geological Survey before being downgraded to a 3.9.
The agency said the first quake struck around 10 a.m. The epicenter was located about 5 kilometers southeast of Ontario, according to officials.
It’s unclear if anyone suffered injuries in the quake.
