Residents around Chino Valley reported hearing one or two loud booms and feeling their homes or business buildings shake on the mornings of Nov. 25-26.
Arizona Earthquake Information Network Director David Brumbaugh said the network's censors didn't detect any earthquakes here, so if they occurred they probably were smaller than a magnitude of 2.5. And it would be hard for people to feel one smaller than a 2.0 magnitude, he added.
The closest measuring devices are near Williams and Kingman, Brumbaugh said.
Chino Valley police and fire officials, and the Yavapai County Sheriff's Office all received calls, but none of the three agencies reported any damage or injuries to residents.
The U.S. Geological Survey website, which lists earthquakes recorded around the world, reported none for this area, either. However, by the afternoon of Nov. 26, 17 Chino Valley residents responded on the website that they had felt something that they thought was an earthquake.
The Review called the Drake Cement plant north of Paulden to ask if they had done any blasting either of the two days, and a spokesperson said they had not, adding that employees working in the plant office yards away "hardly hear" noise from their blasts, and generally see only a puff of dirt.
People who heard the boom on Nov. 25 said it sounded like something fell on the roof of the building they were in or like a sonic boom.
More people responded Nov. 26 to hearing a boom or booms, windows rattling and then feeling the floor move.
Mike Hawkins of the Chino Valley Funeral Home on west Palomino Road said he heard the Nov. 26 boom at about 8:35 a.m. and felt the floor of his office move.
"I was sitting here at the office and all of a sudden, the floor moved up and down under my feet," Hawkins said.
He immediately called his wife at home three miles away, and she also heard the loud bang, but initially thought their dogs knocked over something inside the house. She also said the dogs began barking.
Kim Maurer, who lives off Road 4 North, said she first noticed a change in her cats' behavior before the Nov. 26 booms hit while she was getting ready for work about 8:40 a.m.
"They were acting really goofy, running all around and then hid under my bed," Maurer said. Also, her windows began to shake prior hearing the two booms.
Maurer then heard the booms and her tile floor moved back and forth under her bare feet.
For12 years of her childhood, Maurer lived in Highland, Calif., only a mile from the San Andreas fault, and felt many earthquakes. She described the movement of those shakes as a rolling motion, like standing on pipes. The movement here was different, she said.
"This one shook back and forth," she said of the booms she felt here. "It shook me up."
Maurer has a theory that the long-period comet currently reported near the Earth, which she's learned is causing different kinds of disturbances around the world, could be the cause of the booms and shaking here.
The largest quake over the last 50 years was a 5.0-magnitude quake in the Chino Valley area on Feb. 4, 1976, Arizona Geological Survey scientist Phil Pearthree said.
(Daily Courier reporter Joanna Dodder Nellans contributed to this article.)
Posted: Saturday, December 7, 2013
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Just for the record, I too felt the shaking the morning of Nov. 26. It affected the portion of my home that had more glass windows in it. Everything gave a great shake and then ceased. I checked the earthquake site on my computer but none was registered for here. I am on W. Westwind Rd. After having experienced them in CA, it felt like one, but no aftershocks followed. I decided some military thing was going on.