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Normal fault: Longmen Shan Fault: Sichuan, China: Thrust fault: Active: 2008 Sichuan (M8.0) Lost River Fault: Idaho, United States: Normal: Active: 1983 Borah Peak (M6.9) Lusatian Fault: Germany: Thrust fault: Macquarie Fault Zone >400: South Pacific Ocean: Fault (geology)#Strike-slip faults: Active: 1989 Maquarie Isl. (8.2), 2008 Macquarie ...
A geologic map or geological map is a special-purpose map made to show various geological features. Rock units or geologic strata are shown by color or symbols. Bedding planes and structural features such as faults , folds , are shown with strike and dip or trend and plunge symbols which give three-dimensional orientations features.
Faults may also displace slowly, by aseismic creep. [2] A fault plane is the plane that represents the fracture surface of a fault. A fault trace or fault line is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault. [3] [4]
Some use the term "transform fault" to describe the seismically and tectonically active portion of a fracture zone after John Tuzo Wilson's concepts first developed with respect to the Mid-Atlantic Ridge. [2] The term fracture zone has a distinct geological meaning, but it is also used more loosely in the naming of some oceanic features.
Map of the Great Glen Fault and other late Caledonian strike-slip faults in Scotland and northwestern Ireland. The Great Glen Fault is a strike-slip fault that runs through the Great Glen in Scotland. Occasional moderate tremors have been recorded over the past 150 years.
Of particular concern are signals of massive earthquakes in the region’s geologic history. Many researchers have chased clues of the last “big one”: an 8.7-magnitude earthquake in 1700.
Tectonic uplift – Geologic uplift of Earth's surface that is attributed to plate tectonics; Thrust tectonics – Concept in structural geology; Transform fault, also known as Transform boundary – Plate boundary where the motion is predominantly horizontal; Triple junction – Meeting point of three tectonic plates
A map by the California Geological Survey shows faults near the Lake Almanor area in Plumas County, where a magnitude 5.5 earthquake struck Thursday, May 11, 2023, followed by a magnitude 5.2 ...