A recent swarm of small earthquakes in a sparsely populated area of extreme northwestern Arizona near Nevada and Utah is continuing.
The Arizona Geological Survey reports a magnitude 3.4 earthquake occurred at 2:23 a.m. Friday approximately 37 miles southeast of Littlefield in Mohave County.
Sheriff's spokeswoman Trish Carter says there have been no immediate reports of damage or injury.
Friday's earthquake quake was larger than 19 recent quakes that began March 29 and continued through earlier this week. The others have ranged from magnitude 0.7 to magnitude 2.6.
A quake of magnitude 2.5 to 3 is the smallest generally felt by people.
The Arizona Geological Survey says the area has several active faults and that its geologic features suggest there could be additional potentially active faults.