Swarm of earthquakes strike Ontario

A swarm of earthquakes struck Ontario on Saturday morning, the U.S. Geological Survey reported.

The first shaker was a 3.5 magnitude earthquake at about 10:05 a.m. and was centered nearly three miles southeast of Ontario in San Bernardino County.

A 3.9 magnitude earthquake occurred at about 10:34 a.m. southeast of Ontario.

Three hours after the first earthquake, a total of 32 smaller quakes were recorded, and all located within two-square miles of each other, the USGS reported.

There were no immediate reports of injuries or significant damage, authorities stated.

Seismologist Dr. Lucy Jones took to X on Saturday to post, “Today we are having a small swarm in the Fontana Seismicity Lineation, a northeast-striking line of many small quakes.”

Jones added that she’s seen this type of cluster in Fontana “dozens of times in my decades watching SoCal quakes.”

This article originally appeared on Victorville Daily Press: Swarm of earthquakes strike Ontario