The ground has been busy shaking these past few days in the South Bay.
An earthquake with a preliminary magnitude of 2.4 struck near Milpitas Christmas Day, according to the U.S. Geological Survey.
The temblor struck at 12:29 p.m. with its epicenter about 7 miles northeast of Milpitas. The quake had a depth of about 4.7 miles, according to the USGS.
That same day, a magnitude 2.2 earthquake struck near Alum Rock, about 9 miles east of San Jose. The quake had a depth of about 5 miles, according to USGS.
Just a few days prior, a similar sized earthquake shook the area near this one. A magnitude 2.4 struck east of Milpitas on Dec. 22. The quake had a depth of about 4.7 miles, according to the USGS.
-Bay City News contributed to this article