PHOENIX (KSAZ) -- Data from the United States Geological Survey shows some in Yuma have felt an earthquake that originated in the northern part of Mexico's Baja California del Norte state.
According to USGS information, the magnitude 4.8 quake struck at 1:18:42 p.m. Arizona time, about 5km (~3.1mi) southwest of Alberto Oviedo Mota. The quake originated 32.1km (~20mi) below the surface.
Information on the USGS site ranked the strength of the quake, based on responses from people in the area, as a III on the Modified Mercalli Scale for that area, which meant that it was felt quite noticeably by people indoors, especially on upper floors of buildings, but that many people do not recognize it as an earthquake, and that the vibration is similar to the passing of a truck.
Besides Yuma, there are reports that people in California's El Centro and San Diego area also felt the tremor.
Following the quake, USGS officials have reported two other earthquakes in the area. One struck about seven minutes later after the first quake, in an area 9km (~5.6mi) west of Alberto Oviedo Mota, and the second one struck 39 minutes after the first quake, in an area 10km (~6.21mi) west-northwest of Alberto Oviedo Mota.