An earthquake swarm has erupted in a region of Nevada where the earth is slowly tearing apart.
The seismic activity kicked off with a 4.1 magnitude quake at 1.15am PT (4.15am ET) near Silver Lake, the epicenter of the swarm, followed by a 4.9 magnitude quake less than two minutes later.
At least four more earthquakes were detected, with the most recent striking at 3.35am PT. Nevada locals reported shaking in the early morning hours, with one resident saying on social media: ‘Felt in Fernley, a little longer shaking time, things are moving below us.’
One woman in Nevada shared: ‘My granddaughter and I felt it in NE Sparks, west of Sparks Blvd construction zone. It was a series of rolling waves. A hanging indoor windchime swung back and forth for 5 minutes afterwards, but not enough to actually chime.’
The shockwave, however, reportedly reached parts of California. One California local posted on social media: ‘Rolled for a while in Auburn, CA, and sent my cat running behind the couch.’
The epicenter lies in the Basin and Range Province, a vast region stretching across much of the western US.
In this area, the Earth’s crust is gradually being 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 Lake is also located in the Walker Lane seismic zone, a highly active area where tectonic plates pull apart land, creating numerous strike-slip faults.
The seismic activity kicked off with a 4.1 magnitude quake at 1.15am PT (4.15am ET) near Silver Lake, the epicenter of the swarm, followed by a 4.9 magnitude quake (pictured) less than two minutes later.
The US Geological Survey (USGS) has detected more than a dozen smaller earthquakes since the first hit this morning.
Shaking was centered near Silver Springs in western Nevada, where the strongest ground motion occurred close to the epicenter.
Moderate shaking was reported across nearby communities in Lyon County and extended into parts of the Carson City and Reno areas, where residents likely felt noticeable movement and rattling.
Lighter shaking spread farther west into northern California, including areas near Lake Tahoe, the Sierra Nevada foothills and parts of the Sacramento Valley, where tremors were felt but were generally weak.
The shaking also extended south toward areas near Yerington and the Walker River region, as well as north into more rural parts of western Nevada, showing how the energy from the quake traveled outward across a wide portion of the region.
Multiple earthquakes in Silver Lake can be caused by several factors, but the most common reason is movement along faults, which are fractures in the Earth’s crust where blocks of rock slip past each other.
When stress builds up in the crust and is suddenly released, it creates earthquakes. Another cause can be regional tectonic activity.
Because Nevada sits in an area where the Earth’s crust is stretching and pulling apart, this stretching creates frequent faulting and seismic activity.
A 6.5-magnitude earthquake struck Nevada in 2020 (pictured), which was likely caused by the Basin and Ridge Province cracking and stretching. The latest seismic activity was detected in Silver Lake, which also resides in the same region
In some cases, aftershocks can occur after a larger earthquake, producing a series of smaller quakes over days or weeks.
Occasionally, human activity can trigger earthquakes, such as geothermal energy operations, mining or underground fluid injection.
However, most earthquakes in Nevada are naturally occurring.
Volcanic or geothermal processes can also cause tremors, especially if underground heat and fluids are moving, though this is less common than tectonic causes.
Nevada is the nation’s third-most seismically active state, ranking after California and Alaska.
