Two earthquakes shook San Hose shook the South bay area on Tuesday Night at 10:32 PM. This area is known for notorious seismic activities as per U.S. Geological Survey.
The first earthquake of 3.1 magnitude hit at 7.19 pm and second of 3.9 magnitude hit at 10.32 PM at night. There were no immediate reports of injury or damage.
Both the jolts were the latest in a series of sporadic tremors triggered by the Calaveras Fault. It routinely releases stress caused by the Earth’s shifting continental plates.
In October this year, an earthquake of 4.1 magnitude had hit the same region. According to U.S. Geological Survey, it is a usual for the Calaveras fault to release earthquakes of magnitude 4, but it does not cause any structural damages to buildings.
The Geological Survey has estimates that there are 7.4% chances of an earthquake of 6.7 or more magnitude on the Calaveras fault in the next 30 years and there are 14.3% chances on Hayward fault.
Both, the Calaveras and Hayward faults, are believed to be linked and if ruptured together may cause significant damage.