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

A tremor rattled the area at 2:55 a.m. The earthquake’s epicenter was positioned approximately 7 miles west-northwest of Calipatria and occurred at a depth of 7 miles.

Did you feel it?

If you felt the quake, you can submit a report through the USGS Felt Report form. 29 people have submitted responses through the agency’s online form, indicating they felt the tremor. Light shaking has been registered and people reported feeling the earthquake in multiple cities, including Imperial, Brawley and Calipatria according to the USGS DYFI report.

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.

Earthquakes last week

In the past week, four quakes with a magnitude 2.5 or higher have been detected in the region. The strongest, a 3.7 magnitude quake, jolted close to 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