HARDY, Ark.—The U.S. Geological Survey reported a small earthquake near Hardy in northeast Arkansas.

A dispatcher for the Sharp County Sheriff’s Office was not aware of Saturday’s tremor and said authorities there had not received calls from the public about it.

The Geological Survey said the 2.6-magnitude quake occurred at 7:06 a.m., about six miles from Hardy and nine miles from Mammoth Spring.

The New Madrid fault runs from southern Illinois to northeastern Arkansas, and produces hundreds of small quakes a year, most too weak to be noticed without scientific equipment.