Two small earthquakes were recorded not far from Cape Girardeau at 7:46 p.m. Friday and 6:01 a.m. Saturday.
The largest, a magnitude 2.6, struck four miles south east of East Cape Girardeau, Ill., on Friday. Seismic measurements indicate the shifting happened 8 miles below the Earth's surface.
Saturday morning's quake, a magnitude 1.9 temblor detected 4 miles below the surface, was centered 10 miles southwest of Caruthersville, Mo.
Anyone who felt either quake can help researchers by reporting what they felt at pasadena.wr.usgs.gov/shake/cus/html/unknown_form.html.
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