IMPERIAL COUNTY, CA — According to the U.S. Geological Survey, a 4.3 magnitude quake occurred near Calipatria Friday morning.

At 2:55 a.m., the region was struck by a tremor. The earthquake shook at a depth of 7 miles, with its epicenter approximately 7 miles west-northwest of Calipatria.

Did you feel it?

You can let the USGS know if you noticed the quake by filling out their Felt Report form. 43 people have submitted responses through the agency’s online form, saying they experienced the tremor. According to the USGS DYFI report, residents in several cities, including Whittier, Carlsbad, Imperial and Brawley, reported feeling light shaking from the earthquake.

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

Last week, four quakes of magnitude 2.5 or higher have been reported in the area. The strongest, a 3.7 magnitude quake, rattled 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
• 3.4, west-northwest of Calipatria on July 11
• 3.1, west-northwest of Calipatria on July 11
• 2.5, northwest of Progreso, B.C. on July 4

Source: The U.S. Geological Survey