AZLE (CBSDFW.COM/AP) — Three earthquakes in one day have been detected around a North Texas town that has already seen a swarm of seven earthquakes in the past month.

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The U.S. Geological Survey detected three earthquakes Tuesday around Azle, 20 miles northwest of Fort Worth. A tremor registering a 2.5 magnitude was detected at 11:57 a.m. Another, registering a 2.8 magnitude, was detected at 12:03 p.m. One registered a 3.6 magnitude at 6:40 p.m.

CBS 11 News viewers have been tweeting about the quakes. Eddie Gossage, president at the Texas Motor Speedway, is used to rockin’ and rollin’… just not like this.

Wyatt Shanks asked, “Did anybody else’s house just shake? Both my house and my neighbor’s house just shook like there was an earthquake.”

The USGS scales show the first two were vibrations that would have felt like the passing of light trucks strong enough to be felt by almost all indoors, causing hanging objects swing.

A lot of residents were completely confused, calling family and friends and even CBS 11 to find out what had happened.

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But Bryan Daneman pretty much had it figured out.

The third earthquake would have felt like the vibration of passing heavy trucks, causing stopped cars to rock, hanging objects to swing and rattling windows, dishes and doors.

(©2013 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)

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