United States", https://www.researchgate.net/publication/236473980_Investigation_of_the_Meers_fault_in_southwestern_Oklahoma, 10.1130/0016-7606(1990)102<0001:SATOHS>2.3.CO;2, "The Meers Fault: tectonic activity in southwestern Oklahoma. [9] It dips first northeastward[12] but deeper it becomes either vertical or down-to-the-southwest,[13] but certainly steep at depth. [30] The development of the Meers fault may have been influenced by the South Oklahoma aulacogen. The Mississippi embayment is a broad trough filled with marine sedimentary rocks about 50-100 millions years old and river sediments less than 5 millions years old. [18] In addition, earthquakes are often only weakly correlated to geological structures such as faults. Many structures in Memphis, Tenn., St. Louis, Mo., and other communities in the central Mississippi River Valley region are vulnerable and at risk from severe ground shaking. [49], Alternatively, the fault movement could have occurred through aseismic creep as there is little evidence of strong ground shaking in the area[34] as well as evidence against strong ground motion[50] although the soils found close to the fault trace show evidence of fast movement. [12][20] The scarp marks the Holocene section of the fault. Just for some info to those who may not know, Wichita and most of the Eastern side of Kansas running from north to south sits atop the Humboldt Fault Line as … A known fault line sits nearby and people have recorded earthquakes there as far back as 1919. [64], The fault was discovered during field work in the 1930s[68]–1940s[39] and is named after the town of Meers; previously it was known as the "Thomas fault"[21] after a ranch named George Thomas Ranch[69] and then as the "Meers Valley fault". $27.99 . It might have some people a … Line of section in Figure 5. 1983. A known fault line sits nearby and people have recorded earthquakes there as far back as 1919. Year Published: 1978 Preliminary map of young faults in the United States as a guide to possible fault activity. The KCC released the following statement. There are 565 earthquake incidents in Kansas on record since 1931. ", "My Favorite Outcrop(s): An Imposter Exposed? Structural cross-section across the Garber graben. It could also be due to a known fault that is present just to the west of us, that runs on the other side of Wichita.”. East Sider. [17] It is possible that the fault rupture was limited by geological structures that occur at the northwestern end of the Meers fault[45] where it splays out. WICHITA, Kan. (KWCH) - The Kansas Geological Survey reported a magnitude 3.9 earthquake in Wichita. Wichita Blue City Flag State Short Sleeve T Shirt . He said it’s not unheard of for there to be earthquakes in northeast Wichita. $27.99 . The Meers fault is part of a group of faults that lie between the Anadarko Basin and the Wichita Mountains. Wichita has had: (M1.5 or greater) 0 earthquakes in the past 24 hours 3 earthquakes in the past 7 days; 3 earthquakes in the past 30 days; 65 earthquakes in the past 365 days … Wichita, KS's real-time and most comprehensive local Humboldt-fault news. Because only two fields were contoured on the "Hunton," the average closure is not significant. But, quakes on it are super rare and we are voted as one of the least 5 states to have earthquakes. [3] The igneous rocks belong to the Amarillo-Wichita uplift and are much more magnetic than the carbonates; this has been used to trace the fault with aeromagnetic techniques although the igneous rocks also reduce its visibility in reflection seismology studies. However, it wasn’t until the discovery of the Cascadia Fault in the 1960s th… For Miller, seeing earthquakes happening there again made sense. Thus, the Broxton Fault of Oklahoma may have its extension as the St. Genevieve Fault in the St. Francis Mountains of Missouri. [12], Two to four earthquakes occurred during the Holocene in the last 6,000 years,[17] one of which occurred 1,100–1,300 years ago and the other 2,000–2,900 years ago. Line of section shown in Figure 5. Any new information that we learn will be shared.”. [1], The Meers fault is a reverse fault[7] (at first it was interpreted to be a normal fault[8]) with a straight path despite a variable topography;[9] it probably does take the form of a broad dislocation rather than of a plane[10] and its expression varies depending on the substrate rock. “The USGS doesn’t have but one in the state of Kansas, so we rely, I rely on the information provided by the Kansas Survey because they have better data coverage.”. “The Kansas Corporation Commission understands and shares the concerns that exist over the recent seismic events in Wichita. [5] The fault scarp is located on private land;[6] the southeastern part runs through farmland and the northwestern part runs through hilly terrain. The ones I’ve felt in Wichita in the past have normally lasted several seconds like a low rumble these jolts are freaky. [35] The possibility that faulting continued for another 30 kilometers (19 mi) along its northwestern end is equivocal[13] with some evidence indicating that recent faulting was limited to Comanche County;[46] research published in 2019 indicates that the northwestern segment did not move during the 1,200 BP earthquake but was active in the 3,400–2,900 BP event. Synopsis General: Fault originally mapped in about the late 1930s, and scarp was considered to be an erosionally exhumed fault-line scarp. This assessment is based on decades of research on New Madrid earthquakes and related phenomena by d… There is currently no seismicity on the fault but it is considered an earthquake hazard. There isn’t an active enough fault-line to produce the […] RENO COUNTY, Kan. — Earthquakes keep rocking Kansas this year. The earthquake recorded overnight wasn’t felt as much as a much larger earthquake last Wednesday that the Kansas Geological Survey recorded at a magnitude of 3.9, but it continued the seismic activity that’s ramped up locally since late November. [65] Other regional faults such as the Washita Valley fault which runs parallel to the Meers fault may also be capable of causing earthquakes. $27.99 . [35], Reconstructions of the intensity of the Holocene earthquakes indicates magnitudes of Mw 6.75–7.25[18] with possibly similar intensities,[48] with the terrain north of the fault being shifted upwards and leftwards relative to the terrain to its south;[18] this latter movement[35] and the position of the Meers fault are consistent with the tectonic stress pattern of North America[7] which favours movement along the Meers fault. Slip on the Springer detachment is dissipated along a number of forward-propagating imbricates, culminating in the Carter-Knox structure ( Turko and Mitra, 2020a ). The scarp, formed on late Quaternary deposits, was first recognized by M. Charles Gilbert in the early 1980's during field studies of the igneous rocks exposed in the nearby Wichita Mountains (Gilbert, 1983 #671; 1983 #672). The overwhelming majority of earthquakes are caused by natural phenomena and tension building up between tectonic plates and along fault lines. The few remaining Native Americans in the area spoke of the earth shaking and ocean rising to consume the land. I googled it and I guess there is a fault line that runs southwest out of Nebraska and though Kansas. [3] The nature of the surrounding rocks also influences the expression of the Meers fault, as it has a more pronounced scarp in erosion-resistant rock units. [62] Assessing the hazard potential for the Meers fault suffers from similar problems[44] but it is considered the largest seismic hazard source of the central United States[63] as it has the potential to cause large earthquakes[31] and earthquakes in the central United States usually affect much larger regions than those of the western United States. level 2. Initially, I was unsure whether to make this into a How to for the Fault Line map or have it as a ship video. [18] In the wider area around the Meers fault such as in the Texas Panhandle, the Arbuckle Mountains and around Enola, Arkansas there is evidence of recent seismic and fault activity which may be part of a larger seismic zone. [19] Because the scarp is not present along the entire length of the fault, it is subdivided in a southeastern section in Comanche County and a northwestern section in Kiowa County, with only the southeastern section featuring a scarp. [9] The ratio of the horizontal to vertical motion is about 1.3–1.5[14] or about 2:1[12] although the amount of horizontal movement on the fault is controversial. Wichita is near the Nemaha Ridge, or Humboldt Fault line, and more than a dozen earthquakes have been recorded in the area since Thanksgiving. Looking at … He said it’s not unheard of for there to be earthquakes in northeast Wichita. The overwhelming majority of earthquakes are caused by natural phenomena and tension building up between tectonic plates and along fault lines. Towns close to the fault are Cooperton, Meers, Apache, Fort Sill,[3] Treasure Island and Elgin;[4] Oklahoma State Highway 19, Oklahoma State Highway 115, Oklahoma State Highway 58 and U.S. Route 281 cross the fault[3] and Oklahoma State Highway 44 might do so as well. It is marked by a 22–26 kilometers (14–16 mi) long conspicuous fault scarp but the fault extends beyond the ends of this scarp. [13] The erosion/sedimentation patterns[22][23] and the path of drainages[10] such as Canyon Creek may have been influenced by movement along the fault,[24] and topographic ridges are offset. It may exist. [13] Additional faults in the region are the Cement, the Cordell and the Duncan-Criner faults. Meers Fault is a fault in Oklahoma that extends from Kiowa County to Comanche County. A possible fourth and fifth quakes also may have taken place around 12:52 p.m. and 1:18 p.m.Wichita is near the Nemaha Ridge, or Humboldt Fault line. However, Pleistocene sediments and Holocene alluvium have been offset, indicating fault movement during this time. I don’t know if they will or won’t,” Dr. Mazzullo said. WICHITA, Kan. — Nine … Geologist explains possible cause of Wichita earthquakes, Evergy concludes emergency shutoffs, could do more in days ahead, Evergy alerts of potential blackouts, urges consumers to reduce electricity use, Gov. Fire Dpt.’s Water Rescue Team takes pride in its unique abilities, At 4: Topeka's new "House of Hope" helps the homeless through applications, Scholar Athlete of the Week Submission Form. Dr. Rick Miller with KGS didn’t give a specific cause for the earthquake but noted the city does sit on a fault line, making earthquakes common. Washington, DC", https://en.wikipedia.org/w/index.php?title=Meers_Fault&oldid=995575130, Articles with unspecified earthquake magnitude and/or scale, Creative Commons Attribution-ShareAlike License, This page was last edited on 21 December 2020, at 20:14. “Faults slip to create earthquakes, all in this area from Central to 13th, mostly all of them are right in this area,” he said, pointing out an area of east Wichita where recent earthquakes have registered. [59] The activity of the Meers fault and other seismicity has been related to a continent-spanning fault zone[60] and there might be a relation to the Brevard Zone in Atlanta as well. [52], The Meers fault presently is largely[14][53] aseismic, with no earthquakes recorded along its Holocene trace[18] or any evidence of aseismic creep[54] although minor seismicity has been recorded[55] and a M4.2 earthquake close to Lawton in 1998 is close to the southeastern end of the Meers fault. The county does run over a fault line. “I hope they stop. $27.99 . Wichita Womens Red Fault Line Jr Tank Top . [51] In general, the movement direction of the Meers fault is contentious. 130) to 104 feet at Coats (Fig. [31], The Meers fault is among the most prominent tectonic structures in the region. It cuts off the Meers fault. He said it’s not unheard of for there to be earthquakes in northeast Wichita. [35] Recent research has suggested that the whole fault may be of Quaternary age with little activity during the Pennsylvanian. The Kansas Corporation Commission reached its findings of the recent earthquakes and said they are not tied to the oil and gas industry. The earthquake shook the city just after 5 a.m. Wednesday morning. [54], The USGS national hazard map states that the Meers fault has a recurrence interval of 4,500 years[44] but estimates range from 100,000 years to 1,300 years. Average closure of the fields contoured is 27 feet on the Lansing, 30 feet on the Mississippian, and 43 feet on the Viola. $19.99 . $44.99 . [58] Earthquakes in Oklahoma have been observed in the areas of the southern Oklahoma aulacogen and of the Amarillo-Wichita uplift; in southwestern Oklahoma they are rare and of moderate intensity. Wichita Navy Blue City Flag Short Sleeve T Shirt . [1], In low sun-angle photography additional scarps and splays can be observed. The magnetic maps indicate that an east-west strike-slip fault, the “Cambridge Fault,” offsets the Wichita Mountain block in right-lateral fashion along the south line of Beckham and Washita Counties in Oklahoma. Figure 7. [64] In particular, it indicates that the Mid-Continent is not free of earthquakes and that the absence of recent seismicity does not rule out the presence of active faults. “You … Looking at possible causes of the numerous earthquakes reported in the area since Thanksgiving, a local geologist explains why he thinks there is a newly-identified fault line. Wichita Womens Red Fault Line Jr Tank Top . [56] Likewise, seismicity is scarce in the wider region[31] and photographic analysis has shown little evidence of recent fault movement in other faults of the Wichita fault system. It may have begun as a rift margin fault in the Proterozoic-Cambrian[13] associated with the Southern Oklahoma Aulacogen[39] but its maximum activity took place during the Mississippian and Permian when the Wichita Mountains and the Slick Hills were offset along it by about 2 kilometers (1.2 mi)[13] and the Meers Valley formed along the fault. [40] During the history of the fault considerable uplift took place on its southern side[31] while the recent movement has generated an opposite movement. He showed a map with two possible other faults not connected to the Humboldt fault line. [73], "A Robust Estimation of the 3-D Intraplate Deformation of the North American Plate From GPS", "Fault number 1031b, Meers fault, southeastern section", "THE BREVARD ZONE IN ATLANTA, GEORGIA AND THE MEERS FAULT OF SOUTHERN OKLAHOMA: CONJUGATE WRENCH FAULTS FORMED UNDER CONTRASTING TEMPERATURE CONDITIONS", 10.1130/0016-7606(1988)100<0392:SEOHFI>2.3.CO;2, "Probabilistic Seismic Hazard Assessment of the Meers Fault, Southwestern Oklahoma: Modeling and Uncertainties", "A petrographic study of igneous rock from three drill holes near the Meers Fault, Oklahoma", "Seismic Risk of the Meers Fault, SW Oklahoma: A Hoary Giant or Great Imposter? By the time Lewis and Clark arrived on the West Coast in 1805, it had been 105 years since the Cascadia Subduction Zone last ruptured, sending a large portion of the Pacific Ocean roaring toward the coast. Retired Wichita State University geology professor Dr. Sal Mazzullo said it’s nearly impossible to predict if the local earthquakes will increase in occurrence or strength over time. [38], The Meers fault has been in existence for most of the Phanerozoic. The larger quake recorded on Dec. 30 measured at a magnitude of 3.8 by the U.S. Geological Survey and 3.9 by the Kansas Geological Survey. Wichita Navy Workhorse Long Sleeve Light Weight Hood . The state averages 7 earthquakes per year.
Attach Wood To Concrete Wall Without Drilling,
Midnight With Chris Hardwick,
Acrylic Perspex Door Fronts,
Exit Strategy Example,
House Of The Rising Sun - Piano Letter Notes,
Taco Chronicles Suadero,
Arabic Floor Seating Furniture,
How Often Can I Tone My Brassy Hair,
Low Acid Quinoa Recipes,