Most notable among these is the series of large earthquakes that occurred in 1811-1812 along the New Madrid Seismic Zone located in Southwest Missouri.
An episode of hotspot gabbro magmatism occurred 2,480 million years ago at the eastern edge of the Wyoming craton,[13]:1 south of current-day Sudbury. The outer layer consists of several large, irregularly shaped plates that slide over, under and past each other on top of the partly molten inner layer. Copyright © 2020 Homefacts.com (TM) . When an earthquake occurs on one of these faults, the rock on one side of the fault slips with respect to the other. [5]:409 In the Sims-and-Day model, this last collision in the assembly of the Superior province resulted from northwest-directed tectonic transport of the Minnesota River Valley subprovince terrane against the terrane of the Superior province. Swarms of mafic dikes and sills are typical of continental rifting and can be used to time supercontinent breakup. At this time the two provinces are in contact at only one point north of the Blue Draw Metagabbro; that point of contact was 875 km (540 mi) from Sudbury and 95 km (60 mi) southwest of Duluth, Minnesota.
This gneissic terrane originally extended several hundred kilometers east to west, making it more of a protocontinent than a future Superior province belt. [1], The area hardest hit was a 7,770 square kilometers (3,000 sq mi) strip of land in southeastern Wisconsin, while the earthquake was felt over a much more extensive 99 miles (159 km) wide area stretching across the Wisconsin-Illinois border, and to Lake Michigan and Waukesha. These and other young faults exposed in area help reveal the latest kinematic (movement) and paleostress histories of the mountain block. How much does does a 100 dollar roblox gift card get you in robhx? Ano ang pinakamaliit na kontinente sa mundo? This poster summarizes a few of the more significant facts about the series of large earthquakes that struck the New Madrid seismic zone of southeastern Missouri, northeastern Arkansas, and adjacent parts of Tennessee and Kentucky from December 1811 to February 1812. [8]:8 These Late Archean rocks form a roughly north–south belt lying south of Marquette extending to the Michigan-Wisconsin border. [10]:1890[note 1] The structure consists of the Sudbury Igneous Complex, a differentiated sequence of intrusive volcanic rocks – norite, gabbro and It was a 4.0 magnitude earthquake which lasted for 40 seconds. [8]:1, Crystalline rocks are more prominent in Minnesota, where they underlie 8,882 km2 (3,429 sq mi), than they are in either Wisconsin or Michigan's Upper Peninsula. Why don't libraries smell like bookstores? [13]:8 That narrowest distance between the two cratons is 1,150 km (710 mi) from Sudbury, in east-central South Dakota.
Anonymous . This is the most active seismic area near Wisconsin. The interactive map provides detailed reports for each fault by placing the cursor over the fault and clicking to bring up a link to the information. Prior Great Earthquakes Unveiled at the Western Edge of the 1964 Alaska Rupture, Low-Flying Airplane Mapping Virginia’s Underground Faults Next 11 Days, USGS Releases Quaternary Fault Database for the Nation, Cat Scan'-Like Seismic Study of Earthquake Zone Helps Set Stage for Fault Drilling Project, Alaska Interior Reveals Scars and Ruptures from 7.9 Denali Fault Quake, USGS Geologists Inspecting Fault Trace in a Trench, Geosciences and Environmental Change Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Map of known active geologic faults in the San Francisco Bay region. The distance measurements in the Wyoming province section are derived by the original author of this article with the use of three resources: "New Data on Vergence of the Lake Archean Great Lakes Tectonic Zone", Late Paleoproterozoic (geon 18 and 17) reactivation of the Neoarchean Great Lakes Tectonic Zone, northern Michigan, USA: Evidence from kinematic analysis, thermobarometry and, 10.1130/0016-7606(1980)91<690:TGLTZA>2.0.CO;2, Characterization of crystalline rocks in the Lake Superior region, USA: implications for nuclear waste isolation. It is a measure of the size of the earthquake source. [4] The growth of the Superior province greenstone-granitic terranes ended with the suturing of the Minnesota River Valley gneiss terrane to the basaltic Wawa subprovince. [4] Collision began along the GLTZ around 2,700 million years ago and continued for tens of millions of years. Who is the longest reigning WWE Champion of all time?
Earthquake list: past 30 days, magnitude 0.1 or higher. Tsunami waves can travel across the ocean and cause death and destruction among coastal communities.
On Dec. 16, 1811, a magnitude 7.7 earthquake hit the New Madrid fault line, which lies on the border region of Illinois, Indiana, Missouri, Arkansas, Kentucky, Tennessee and Mississippi. Earthquakes struck Wisconsin again in 1937 and 1939. KML (Google Earth-type) files and GIS shape files are also available for download from the site. 0 0. [2] The GLTZ is 50 km (30 mi) wide.[3]. [13]:2 Radiometric dating shows that the Wyoming province's Blue Draw Metagabbro was undergoing rifting at 2,480 million years ago, the same time the emplacement of the 250 km (160 mi) long belt of mafic layered intrusions in the Sudbury region. USGS seismic hazard maps, data, and tools for California and other parts of the United States are in the Hazards section of the... A fault is a fracture or zone of fractures between two blocks of rock.
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