ACTIVE TECTONICS
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Uplifted wave-cut notch, Greece (pan)
Wave-cut notch, uplifted about 1 meter above the waves from 365AD Cretan Earthquake. (IP2018-5820)
Download ImageEarthquake damaged highway, New Zealand
Highway 1, north of Kaikoura, damaged by M7.8 Earthquake in 2016. (180124-87)
Download ImageWave-cut bench, New Zealand
Wave-cut platform, Kaikoura, New Zealand. Flat benches on left side of photo is an older uplifted marine terrace. (180123-109)
Download ImageUplifted marine terrace, Oregon
Uplifted marine terrace at Cape Blanco, Oregon. (SrA-30)
Download ImageFault scarps along Wasatch FZ, Utah
Fault scarps and urban development along Wasatch fault zone. Salt Lake City, Utah. (SrA-27).
Download ImageDrowned tree in surf zone, Oregon.
Drowned tree stumps in intertidal zone, part of a ghost forest. Sunset Bay State Park, Oregon. These tree stumps indicate that this beach was somewhat above sea level when the trees grew, but dropped to below sea level as the result of an earthquake. Carbon dating of the wood indicates the trees died some 1200 years ago. (SrA-32).
Download ImageTilted marine terrace, N. Cal.
Marine terraces form at sea level and horizontally. The tilting of such a recent feature indicates recent deformation.
Download ImageFault-controlled mtn front, Death Valley, CA.
This photo shows wineglass canyons and a straight and abrupt edge to the mountain front. Black Mountains, Death Valley National Park, CA.
Download ImageWineglass Canyon, Wasatch FZ ,Utah
Wineglass Canyon and rrban development along Wasatch fault zone, Salt Lake City, Utah. Wineglass Canyons indicate recent fault movement. (SrA-26)
Download ImageOwens Valley fault scarp, CA.
Owens Valley fault and Sierra Nevada Range, California. Scarp has formed over several earthquakes, most recently in 1872. (SrA-17)
Download ImageWineglass Canyon, Death Valley, CA.
Aerial view of wineglass Canyons and fault-controlled mountain front, Death Valley National Park, California. Wineglass canyons, named for their steep, narrow mouths and broader, gentler upper reaches, (they look a little like wineglasses) indicate recent uplift activity on the bounding fault zone. Faulting continually uplifts the front of the canyon, so that erosion does not have time to widen it. Consequently, the canyon mouth retains a steep and narrow shape. (ID: SrA-06)
Download ImageSan Andreas fault, Pt. Reyes, California
Aerial view of trace of San Andreas fault. Tomales Bay and Pt. Reyes Peninsula, California (SrA-02)
Download ImageOffset stream channel in Carrizo Plain
Stream channel offset right-laterally by the San Andreas fault at Wallace Creek in the Carrizo Plain. (5D-11396)
Download ImageFault creep and sidewalk, CA (vertical)
Sidewalk offset and bent by creep on Calaveras fault, Hollister, California (5D-0321)
Download ImageWasatch Mtns, E edge of Basin-Range
The eastern edge: Mt. Timpanogos, in the Wasatch Range of Utah. Mt. Timpanogos is the second highest peak of the Wasatch Range, at an elevation of 11749′. The Wasatch Range rises along the Wasatch fault, which is an active fault, and so poses a significant earthquake hazard to the Salt Lake City region. As evidence of recent faulting, two wineglass canyons can be seen behind the fault on the right side of the photo. (ID: 477-89)
Download ImageTriangular facets, Oregon (pan)
Triangular facets on rangefront, an indication of recent fault activity. La Grande, Oregon. (140711-163)
Download ImageFault-bounded ridges and Klamath Lake, Oregon
Aerial view southward along fault-bounded ridge next to Klamath Lake, Oregon. (140617-301).
Download ImageUplifted marine terrace, New Zealand
Houses built on top uplifted marine terrace, Wellington, New Zealand. (ID# 140125-25)
Download Imagefault-bounded mountain front, Utah
Aerial view of fault-bounded mountain front, Wasatch Mountains, Utah. Note the triangular facets. (130102-49)
Download ImageView north to Salton Sea, CA
Aerial view of the Salton Sea and Imperial Valley of California, view northward. The San Andreas takes a right step when it reaches the Salton Sea; transfer of the strain from one part of the fault to the other has caused the area between to be pulled apart. That area is now filled in by the Salton Sea. (100128-85)
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