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The El Tigre Fault is a 120 km long, roughly north-south trending, [5] major strike-slip fault located in the Western Precordillera in Argentina. [1] [6] The Precordillera lies just to the east of the Andes mountain range in South America. [1] The northern boundary of the fault is the Jáchal River and its southern boundary is the San Juan ...
San Andreas Fault System (Banning fault, Mission Creek fault, South Pass fault, San Jacinto fault, Elsinore fault) 1300: California, United States: Dextral strike-slip: Active: 1906 San Francisco (M7.7 to 8.25), 1989 Loma Prieta (M6.9) San Ramón Fault: Chile: Thrust fault: Sawtooth Fault: Idaho, United States: Normal fault: Seattle Fault ...
The New Madrid seismic zone (NMSZ), sometimes called the New Madrid fault line (or fault zone or fault system), is a major seismic zone and a prolific source of intraplate earthquakes (earthquakes within a tectonic plate) in the Southern and Midwestern United States, stretching to the southwest from New Madrid, Missouri.
Locations of quakes magnitude 2.5 or greater in the Wabash Valley (upper right) and New Madrid (lower left) Seismic Zones. The Wabash Valley seismic zone (also known as the Wabash Valley fault system or fault zone) is a tectonic region located in the Midwestern United States, centered on the valley of the lower Wabash River, along the state line between southeastern Illinois and southwestern ...
Pressure on the fault where the 1811–1812 New Madrid earthquakes occurred was believed to be increasing, [23] but a later study by Eric Calais of Purdue University and other experts concluded the land adjacent to the New Madrid fault was moving less than 0.2 mm (0.0079 in) a year, increasing the span between expected earthquakes on the fault ...
Seismic activity along the fault line, which runs north to south through the Northeast, could be a greater threat than previously known, researchers said. The quake in April shook buildings in New ...
There are about 300 fracture zones, with an average north–south separation of 55 kilometres (34 mi): [7] two for each degree of latitude. Physically it makes sense to group Atlantic fracture zones into three categories: [8] Small offset: length of transform fault less than 30 kilometres (19 mi) Medium offset: offset over 30 kilometers
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