Several aftershocks were being felt Sunday after a 5.2 magnitude earthquake struck Arizona on Saturday evening.
The last aftershock about 8 a.m. Sunday was not as strong as the initial aftershock and was centered about 10 miles southwest of Duncan.
The quake's epicenter was reported in southern Greenlee County near the border with New Mexico, according to the U.S. Geological Survey.
USGS placed the quake's origin 31 miles northwest of Lordsburg, NM. The Arizona towns of Duncan and Safford were very close to the epicenter.
Shortly afterwards, a 3.5 magnitude aftershock was registered in the same vicinity.
In Duncan, cracks were showing in ceilings and on floors and foundations were slipping.
"First, I thought it might've been a train going by, but then it got progressively more violent," Duncan resident Ben Apple said.
The U.S. Geological Survey said it had tremor reports from Tucson to El Paso, TX, and Albuquerque, NM, to the Mexican border.
"This was definitely an earthquake that got a lot of people's attention," said Susan Hoover of the USGS.
And while the aftershocks kept coming, another quake couldn't be ruled out.
"There's always a chance the earthquakes could stop abruptly. There's a chance there could be no more aftershocks. But there's also a chance there could be earthquakes that are larger," Hoover said.
In Duncan, ceiling tiles fell at the First Baptist Church, an old chimney began to collapse at one home and glasses and bottles crashed to the floor at the Bonnie Heather Bar.
"It just kept shaking and shaking, and I grabbed the arm of the girl next to me," said Jennifer Taylor, a dispatcher for the Graham County Sheriff's Office in Thatcher. "We went out to the patio and looked up and our radio tower was shaking."
Taylor said there were hundreds of phone calls to the dispatch center but no reports of any damage or injuries.
Elena Rios says she spoke to her mother who lives in Duncan who reported that the shaking lasted for a good 30 seconds.
Another report coming from Mindy Curtis in Safford indicated the earthquake knocked picture frames off walls and caused the light fixtures to swing wildly.
The earthquake was reported at a depth of 5 kilometers.
Here is the official statement from the National Weather Service:
"Earthquake Report - National Weather Service, Tucson, AZ - 10:20 PM MST - Saturday June 28 2014
"An earthquake was felt weakly to moderately by many people across Southeastern Arizona including Tucson...Douglas...Willcox...and Sierra Vista. No damage or injuries have been reported. The earthquake was initially rated at magnitude 5.2 by the U.S. Geological Survey and occurred at 10 p.m. MST. The location was noted as 50 kilometers northwest of Lordsburg, NM...Which is near Duncan in southern Greenlee County, AZ. Lat 32.607 Lon 109.151
"Information released in this statement is preliminary. Updates...Including Richter scale magnitude...will be provided as more information becomes available from the National Earthquake Information Center in Golden Colorado."
Less than an hour after the quake, reported just before 10 p.m. local time, more than 850 people had reported to the USGS that they had felt it.
A number of people described what they left on the CBS 5 News Facebook page:
Lyn Jewett: "OK, this is going to sound weird. But our two birds were in the bedroom sleeping and all of a sudden they flew out into the kitchen and slammed into the wall and window. They have never done anything like this before in the nine years we've had them."
Manda Hunsicker: "Not weird at all. When my brother and his family lived in California they had pet birds because they always would go crazy shortly before earthquakes happened. Animals definitely sense them."
Ali Marie Martinez: "Felt it like crazy here in Safford, Arizona. Shook the whole house!"
Kimberly Yamamoto: "Felt it in Chandler...about 8 seconds."
Terri Ready: "My mom lives in Duncan and surely felt it and aftershocks!"
Dena Baldwin: "Felt it in Pinetop, AZ"
Gina Chavez: "Our dog was barking and I was watching the 5 News at 10 p.m. and on Facebook when my bed felt like a huge massage chair or something. Thought it was the AC only to realize it was an earthquake."
Andrea Gamez: "I felt it in Avondale."
Candy Howard: "Felt it here in Lakeside, AZ."
According to those reports, the earthquake was felt as far east as Roswell, NM, and as far west as Mayer, near Prescott.
Emails and phone calls make to the CBS5 newsroom from viewers indicate they felt the quake throughout the Valley.
Historical data kept by the USGS establishes the earthquake one of the most powerful in Arizona history.
The largest quake on record in Arizona was a magnitude 5.6 quake that struck along the Arizona-Utah border in July of 1959. A rockslide at Mather Point in the Grand Canyon was attributed to the shock, according to the USGS.
For more earthquake information, visit earthquake.usgs.gov.
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