IMPERIAL COUNTY, CA — Friday morning, a preliminary 4.3 magnitude quake was registered close to Calipatria, according to the U.S. Geological Survey.

The tremor, which jolted the area at 2:55 a.m., was centered approximately 7 miles west-northwest of Calipatria. It occurred at a depth of 7 miles.

Did you feel it?

If you felt the earthquake, you can submit a report through the USGS Felt Report form. 28 people have submitted responses through the agency’s online form, indicating they felt the quake. According to the USGS DYFI report, light shaking was recorded and people in several cities—including Imperial, Brawley and Calipatria—reported experiencing the tremor.

Impact and estimated losses

Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage. Recent earthquakes in this area have caused secondary hazards such as landslides and liquefaction that might have contributed to losses.

Structure information summary
Overall, the population in this region resides in structures that are resistant to earthquake shaking, though vulnerable structures exist. The predominant vulnerable building types are unreinforced brick masonry and reinforced masonry construction.

Historical information
A magnitude 6.6 earthquake 315 km northwest of this event struck San Fernando, California on February 9, 1971 (UTC), with estimated population exposures of 319,000 at intensity VIII and 21,000 at intensity IX or greater, resulting in a reported 65 fatalities.

Quakes last week

During the past week, there have been four earthquakes of magnitude 2.5 or above centered nearby. The largest, measuring 3.7, shook near Borrego Springs prior to this quake.

The four largest earthquakes nearby in the last week:

• 3.7, west of Borrego Springs on July 10
• 3.3, west-northwest of Calipatria on July 11
• 3.0, west-northwest of Calipatria on July 11
• 2.5, northwest of Progreso, B.C. on July 4

Source: The U.S. Geological Survey