An earthquake swarm has struck Nevada in the same location where the earth has been slowly breaking apart, unleashing hundreds of tremors for several weeks.
Recent Activity
Since Sunday, the US Geological Survey has detected 19 minor earthquakes near Silver Springs, roughly 40 miles east of Reno. Five of those earthquakes struck the area on Monday, with the largest ones registering at 2.5 in magnitude.
However, since April 20, monitoring stations have picked up more than 200 earthquakes, all centered in the same area of Nevada, including a significant magnitude 5.2 quake on May 1 which was felt across the state and in California.
Geological Context
The epicenter of this month-long swarm lies in the Basin and Range Province, a vast region stretching across much of the western US. The Earth’s crust in this region has gradually stretched and thinned, creating frequent faulting and seismic activity. As the crust pulls apart, fractures known as faults form, and movement along these faults produces earthquakes.
Silver Springs is also located in the Walker Lane seismic zone, a highly active area where tectonic plates pull apart land, creating numerous strike-slip faults.
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