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 Navy Blue City Flag Long Sleeve Fleece Hood Sweatshirt . 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 … [61], Judging earthquake hazards in the central and eastern United States is made hard by the scarcity of geological evidence of seismicity, the long timespans between earthquakes and the shortness of the historical record thereof. [35] Additional faulting appears to have occurred over 12,000 years ago, but evidence thereof was partly eroded away during a time of a wetter climate[41] and prior to the Holocene the fault might have been inactive for 100,000–130,000 years. [18] The Meers fault is the only Mid-Continent fault scarp[21] and has been called the "finest" such scarp east of the Rocky Mountains. It might have some people a … State and federal regulators this week said 32 disposal wells in northeastern Oklahoma must shut down because they are too near the newly discovered fault line … The few remaining Native Americans in the area spoke of the earth shaking and ocean rising to consume the land. Meers Fault is a fault in Oklahoma that extends from Kiowa County to Comanche County. [18] In addition, earthquakes are often only weakly correlated to geological structures such as faults. Wichita Grey City Flag Short Sleeve T Shirt . [9] It dips first northeastward[12] but deeper it becomes either vertical or down-to-the-southwest,[13] but certainly steep at depth. The Humboldt Fault or Humboldt Fault Zone, is a normal fault or series of faults, that extends from Nebraska southwestwardly through most of Kansas. Average closure of the fields contoured is 27 feet on the Lansing, 30 feet on the Mississippian, and 43 feet on the Viola. $27.99 . Dr. Mazzullo explained that the Kansas Geological Survey has more seismometers in the state. [14] One interpretation is that the Meers fault is a "back-thrust" that dips northwards. However, it wasn’t until the discovery of the Cascadia Fault in the 1960s th… [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". © Provided by Wichita-Hutchinson Plus KWCH-DT Two unidentified fault lines in east Wichita could be the source of recent earthquakes in the area, a retired geology professor believes. The Meers Fault runs along the northern side of Meers Valley[1] through Comanche County and Kiowa County and close to Caddo County[2] in an east-southeast to north-northwest direction. Regional subsurface mapping, seismic data, and outcrop observations indicate that the Wichita Mountains have been thrust over the Slick Hills by a fault named here as the Wichita Mountains fault (Figure 5-9) . [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. $27.99 . The Meers fault is part of a group of faults that lie between the Anadarko Basin and the Wichita Mountains. The New Madrid seismic zone is located in the northern part of what has been called the Mississippi embayment. “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.”. Structural cross-section across the Garber graben. [57], The region is part of the stable continent and away from plate boundaries and other tectonically active areas. 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. … WICHITA, Kan. (KWCH) - The Kansas Geological Survey reported a magnitude 3.9 earthquake in Wichita. [9] Finally ductile folding,[25] vegetation and landform variations have also been recognized on the Meers fault. Thus, the Broxton Fault of Oklahoma may have its extension as the St. Genevieve Fault in the St. Francis Mountains of Missouri. Wichita 3x5 Red Silk Screen Grommet Flag . ", "My Favorite Outcrop(s): An Imposter Exposed? 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. Year Published: 1978 Preliminary map of young faults in the United States as a guide to possible fault activity. [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. 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.”. [26] In some rock formations faulting has mainly led to warping, instead of brittle displacements[27] and in several sites evidence of faulting appears to be concealed by floodplain sedimentation. The Wichita Mountain Fault brings up the core of Wichita Uplift and is also responsible for much of the slip along the Springer detachment. This map gives an overview of geologically young faults and is intended to help in evaluation of the potential activity of faulting nationally. [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. I don’t know if they will or won’t,” Dr. Mazzullo said. Merriam (1955c) found that in eight of ten fields in central and western Kansas the structural relief on the Stone Corral is less than on t… “That’s where we think a possibly previously unrecognizable fault exists. Wichita, KS's real-time and most comprehensive local Humboldt-fault news. Figure 7. Copyright 2021 KWCH. [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. 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). [16], A conspicuous[17] 5-meter (16 ft) high and 26-kilometer (16 mi)[18]–22-kilometer (14 mi) long fault scarp just north of the Wichita Mountains is noticeable on Google Earth;[17] it has formed on the Holocene part of the fault[18] and continues southeastwards in the form of more subtle scarps[12] although it may not exactly coincide with the path of the fault. [13] Additional faults in the region are the Cement, the Cordell and the Duncan-Criner faults. [33], All these faults lie in the area of the Frontal Wichita fault system, which is located between the Anadarko Basin to the north and the Amarillo-Wichita uplift to the south[3] and separates the two. It may exist. WICHITA, Kan. (KWCH) - The latest earthquake registered in east Wichita was felt early Monday morning and measured at a magnitude of 2.2. [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. [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. Synopsis General: Fault originally mapped in about the late 1930s, and scarp was considered to be an erosionally exhumed fault-line scarp. [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. A known fault line sits nearby and people have recorded earthquakes there as far back as 1919. Earthquake Information for Kansas. Wichita Navy Workhorse Long Sleeve Light Weight Hood . There isn’t an active enough fault-line to produce the […] RENO COUNTY, Kan. — Earthquakes keep rocking Kansas this year. The overwhelming majority of earthquakes are caused by natural phenomena and tension building up between tectonic plates and along fault lines. The amount of closure ranges from 11 feet at Arnold (Fig. 1983. 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. Wichita Womens Red Fault Line Jr Tank Top . [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. $27.99 . We want residents to know that our staff continues to monitor seismic activity in the area and work wtih (the Kansas Geological Survey and Kansas Department of Health and Environment.) [34] The fault system, which also includes the Meers fault[35] as its southern margin,[36] was active during the Mississippian to Permian, generating a total offset of about 12 kilometers (7.5 mi). There is currently no seismicity on the fault but it is considered an earthquake hazard. The KCC released the following statement. [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. Slip on the Springer detachment is dissipated along a number of forward-propagating imbricates, culminating in the Carter-Knox structure ( Turko and Mitra, 2020a ). Line of section in Figure 5. 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. [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. $37.99 . [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. 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. [14] The fault may generate strong earthquakes in the future;[66] earthquakes with magnitudes Mw 7.5–8 might be possible on the Meers fault[67] and an earthquake similar to the Holocene ones would be felt over large parts of the continent, including Oklahoma and Texas,[54] with intensities comparable to these of the 1886 Charleston earthquake and 1811–12 New Madrid earthquakes. The state averages 7 earthquakes per year. A Meers Fault Outcrop in the Slick Hills of Oklahoma", "Possible Quaternary movement on the Meers Fault Southwestern Oklahoma", "The Slick Hills of Southwestern Oklahoma-Fragments of an aulacogen? For Miller, seeing earthquakes happening there again made sense. Because only two fields were contoured on the "Hunton," the average closure is not significant. While the fault was active during the Permian-Cambrian, movement possibly accompanied by earthquakes took place during the Holocene and formed the fault scarp, with one earthquake occurring less than 2,000 years ago. $27.99 . “The Kansas Corporation Commission understands and shares the concerns that exist over the recent seismic events in Wichita. [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. Wichita Olive Green Wordmark Keeper Short Sleeve T Shirt . $19.99 . East Sider. Expert says this is normal activity for a fault line and the area could see a few more earthquakes in the coming days. Nine … [11] Underground, the fault may be over 100 kilometers (62 mi) long. Wichita Humboldt-fault. Any new information that we learn will be shared.”. There are 565 earthquake incidents in Kansas on record since 1931. ", "The Meers fault scarp, southwestern Oklahoma", "Neotectonic and Paleoseismic Analysis of the Northwest Extent of Holocene Surface Deformation along the Meers Fault, OklahomaNeotectonic and Paleoseismic Analysis of the Northwest Extent of Holocene Surface Deformation", 10.1130/0016-7606(1995)107<0098:SCOHRO>2.3.CO;2, "Investigation of the Meers fault in southwestern Oklahoma (NUREG/CR--4937). 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. [12][20] The scarp marks the Holocene section of the fault. [43], The Meers fault is the only fault on Oklahoma which has generated a rupture on the surface,[44] resulting in about 5 meters (16 ft) of vertical offset[34] over a 43 kilometers (27 mi) long distance. The county does run over a fault line. [30] The development of the Meers fault may have been influenced by the South Oklahoma aulacogen. WICHITA, Kan. (KWCH) - The latest earthquake registered in east Wichita was felt early Monday morning and measured at a magnitude of 2.2. [31], The Meers fault is among the most prominent tectonic structures in the region. [15] Unlike many other faults, there is no evidence of segmentation in the Meers fault. [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. He said it’s not unheard of for there to be earthquakes in northeast Wichita. [65] Other regional faults such as the Washita Valley fault which runs parallel to the Meers fault may also be capable of causing earthquakes. [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. Line of section shown in Figure 5. $44.99 . In general, it may be stated that the amount of closure increases with depth. However, Kansas’ largest earthquake in the past 50 years – one that registered around 4 on the Richter scale – was along a fault line that runs from Wichita to the Black Hills. [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. “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. [58] The discovery of Holocene activity at the Meers fault was a surprise to scientists[71] and attracted the attention of geologists[72] after two publications in 1983 highlighted the young movements on this fault;[17] it is the best researched fault east of Colorado. The ones I’ve felt in Wichita in the past have normally lasted several seconds like a low rumble these jolts are freaky. Kelly, emergency officials give update on cold weather, KDOL gives update on new unemployment fraud mitigation system, One killed in overnight shooting in south-central Topeka, Auburn-Washburn returning to full on-site learning after Spring Break, Salute Our Heroes: Mission Twp. $19.99 . Many tribes even left the region permanently. [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. 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. 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. 128). [38], The Meers fault has been in existence for most of the Phanerozoic. [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. The Kansas Corporation Commission reached its findings of the recent earthquakes and said they are not tied to the oil and gas industry. [39] More fault movements occurred in the Permian and the Pleistocene[13] although there are no post-Permian rock formations in the area that could allow an estimation of post-Paleozoic movements. 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. [1], In low sun-angle photography additional scarps and splays can be observed. [21] Other faults in the area are the Blue Creek Canyon fault which is connected to the Meers fault at its northwestern end, the Broxton Fault Complex northeast and the Mountain View fault to the north[3] which intersects with[32] and is also connected to the Meers fault. [5] The fault scarp is located on private land;[6] the southeastern part runs through farmland and the northwestern part runs through hilly terrain.