Nine earthquakes of small intensity, ranging from magnitudes 1.6 to 3.6, jolted North Texas in less than 24 hours duration on Tuesday and early Wednesday.
According to the US Geological Survey, the tremors were recorded in the Dallas suburb of Irving.
The authorities said that no major damage or injuries were reported due to the earthquakes.
The first earthquake of magnitude 2.3 hit North Texas around 7:37 am local time on Tuesday. It was centered near the former Texas Stadium site, which was once the home of the Dallas Cowboys.
Some of the residents said that they felt a stronger jolt at around 3:10 pm when the second quake of magnitude 3.5 shook Dallas, Irving, Mesquite, Coppell and Arlington. This was followed by the strongest magnitude 3.6 temblor around 7 pm.
The fourth quake was of magnitude 2.9 that hit at 8:11 pm, while the fifth one was of a magnitude 2.7 that occurred around 8:12 pm.
A magnitude 1.7 quake at 9:54 pm was the sixth one, followed by a magnitude 2.4 at 10:05 pm and a magnitude 1.6 at 11:02 pm temblors. The ninth earthquake was of magnitude 3.1 and had occurred at 12:59 am Wednesday.
Except the sixth quake, all of the earthquakes were centered in Irving.
The North Texans have witnessed a total of 25 earthquakes since late October 2014.
Several seismologists have initiated work of understanding the pattern and frequency of these quakes. Southern Methodist University seismologists have commenced installation of related equipment to monitor the recent tremors.
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