A 4.2 magnitude earthquake shook near Isleton on Wednesday, according to the United States Geological Survey. The USGS initially recorded the shake at 9:29 a.m. with a 4.6 magnitude.

Isleton is located about 40 miles southwest of Sacramento in Sacramento County. The city is located on the easternmost edge of the Delta Region.

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The USGS shared on X/Twitter that the quake was initially estimated at a magnitude 5, which led to a Wireless Emergency Alert sent to cell phones throughout the region.

While many people as far away as El Dorado County and throughout the Bay Area received the alert, many did not report feeling any shaking.

In the first hour after the quake, more than 1,000 ‘Did You Feel It?’ responses were sent to the USGS. The furthest report from the epicenter came from Olivehurst in Yuba County with a ‘light’ report.

This is Northern California’s second earthquake of a similar magnitude this week. A 4.7 magnitude earthquake struck along California’s north coast on Monday.