Small tremor of magnitude 3.4 just reported 4 miles northeast of Rialto, California, United States

The United States Geological Survey reported a magnitude 3.4 quake in the United States near Rialto, San Bernardino County, California, only 7 minutes ago. The earthquake hit late at night on Friday, May 8th, 2026, at 11:32 pm local time at a shallow depth of 8.3 miles. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Our monitoring service identified a second report from The Incorporated Research Institutions for Seismology (IRIS) which listed the quake at magnitude 3.4 as well. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 3.4.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Muscoy (pop. 10,600) located 1 miles from the epicenter, Rialto (pop. 103,100) 4 miles away, and San Bernardino (pop. 216,100) 4 miles away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Colton (pop. 54,600) located 5 miles from the epicenter, Fontana (pop. 212,700) 7 miles away, Highland (pop. 54,900) 7 miles away, Redlands (pop. 71,000) 11 miles away, and Riverside (pop. 317,300) 14 miles away. In Anaheim (pop. 350,700, 40 miles away), the quake was probably not felt.

Earthquake data:
Date & time: May 8, 2026 11:32 pm (GMT -7) local time (9 May 2026 06:32 GMT)
Magnitude: 3.4
Depth: 13.28 km
Epicenter latitude / longitude: 34.15°N / 117.33°W (San Bernardino County, California, United States)
Primary data source: USGS
https://www.volcanodiscovery.com/earthquake/news/301906/Small-tremor-of-magnitude-34-just-reported-4-miles-northeast-of-Rialto-California-United-States.html