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The Wasatch Fault. Dates indicate approximately when the most recent strong (magnitude greater than 6.5) earthquake occurred on a fault segment. The Wasatch Fault is an active fault located primarily on the western edge of the Wasatch Mountains in the U.S. states of Utah and Idaho. The fault is about 240 miles (390 kilometres) long, stretching ...
Seattle Fault. The Seattle Fault cuts across Puget Sound and into Seattle itself. Restoration Point in the foreground, Alki Point is barely seen at the right edge of the picture. The Seattle Fault is a zone of multiple shallow east–west thrust faults that cross the Puget Sound Lowland and through Seattle (in the U.S. state of Washington) in ...
The public tends to feel more negatively towards earthquakes caused by human activities than natural earthquakes. [96] Two major parts of public concern are related to the damages to infrastructure and the well-being of humans. [95] Most induced seismic events are below M 2 and are not able to cause any physical damage.
Intraslab (Benioff zone) earthquakes, such as the M 6.7 2001 Nisqually earthquake, caused by slippage or fracturing on a small part of the subducting plate at a depth of around 50 km (31 miles). Relatively shallow crustal earthquakes, generally less than 25 km (16 miles) deep, caused by stresses and faulting in the near-surface crustal structures.
The segments have different types of rock and varying seismic characteristics — meaning some could be more dangerous than others. Earthquake and tsunami modelers are beginning to assess how the ...
Earthquakes — particularly strong ones — are much more likely in places like California, which sit along major plate boundaries. Still, small earthquakes are fairly common in Georgia, experts ...
A series of shallow earthquakes can happen when magma is moving close to the surface. The closer the magma is to the surface, the higher the likelihood of an eruption.
In seismology, the depth of focus or focal depth is the depth at which an earthquake occurs. Earthquakes occurring at a depth of less than 70 km (43 mi) are classified as shallow-focus earthquakes, while those with a focal depth between 70 km (43 mi) and 300 km (190 mi) are commonly termed mid-focus or intermediate-depth earthquakes. [ 1]