WEST SALEM, IL - The number of aftershocks linked to last week's earthquake has grown to more than two dozen.
The U.S. Geological Survey says 26 aftershocks have been centered in Illinois since last week's 5.2-magnitude temblor with its epicenter near West Salem in Edwards County.
The latest aftershock, reported as a 3.7-magnitude, occured about 12:30 p.m. today near Bellmont.
There are no reports of damage or injuries, although some residents reported feeling the aftershock.
Two of the aftershocks have been measured at least a 4.0 magnitude. Most have been closer to 2.0.
Seismologists say aftershocks can continue for days or months depending on the region or the geology.
Many of the aftershocks go unnoticed by people without specialized measuring equipment.