The largest NMSZ earthquake of the 20th century was a 5.4-magnitude quake (although it was reported as a 5.5 at the time) on November 9, 1968, near Dale, Illinois. Official websites use .gov Community Rules apply to all content you upload or otherwise submit to this site. (3.2 miles), 2022-08-21 17:09:31 UTC See here for older maps for Alaska, Hawaii, and U.S. territories. Join half a million readers enjoying Newsweek's free newsletters. [10], Two fault zones are found in Alabama, the Southern Appalachian Seismic Zone (also known as the Eastern Tennessee Seismic Zone) in northeast and central Alabama, and the Bahamas Fracture Seismic Zone in southwest Alabama. With all the pressure of the continents that are actually still moving around, theyre bumping into each other and pulling apart from each other in certain places, all of that kind of adds up stress along those weak zones, Ebersole said. All rights reserved. The 1916 Irondale earthquake struck in the north-central region of the U.S. state of Alabama on October 18. at 11:22 March 14, 2021 UTC, Location: Earthquake magnitudes are calculated on a logarithmic scale, so a magnitude 3.0 quake is 10 times more powerful than a 2.0. Late Cretaceous and especially Cenozoic clastic sediments prograded southward led to abundant Cenozoic and continuing growth faulting and salt tectonism (for example DuBar and others, 1991 #2010, p. 584-585; Salvador, 1991 #2019). The 15 May 2020, M6.5 Monte Cristo Range earthquake was the largest earthquake in Nevada in over 66 years and occurred in a sparsely populated area of western Nevada about 74 km southeast of the town of Hawthorne. at 18:34 December 11, 2021 UTC, Location: Epicenter at 35.134, -85.716 To read more information on individual earthquakes or faults, click the feature on the map. at 13:24 February 06, 2023 UTC, Location: This fault line is called the Quaternary Cookie Settings/Do Not Sell My Personal Information. To reflect regional differences in the characteristics of the faults, those in Florida and Alabama (described here) are evaluated together in a single group, as are those in Mississippi, those in Louisiana and Arkansas, and those in Texas. Calculations show that the crustal load from rapid Quaternary sedimentation may aid Quaternary normal faulting and reactivate Tertiary faults of the Coastal zone by imposing extensional bending stresses on the post-rift sequence; older extensional stresses imposed by the Mesozoic sediment load have had time to relax (Nunn, 1985 #2215). Accordingly, the fault belt is assigned to class B. [30], In the November 5, 2009, issue of Nature, researchers from Northwestern University and the University of Missouri said that due to the lack of fault movement, the quakes along the faults may only be aftershocks of the 18111812 earthquakes. Privacy Policy, West Virginia Geological & Economic Survey, Interactive map of California earthquake hazard zones, Interactive map of geothermal resources in West Virginia, Interactive map of natural hazards in Nevada, Interactive map of earthquakes around the world, Interactive map of earthquakes in Montana, Visualization of earthquake risk in California. The map is from a 2007 report (click here to download) on seismic design categories in Washington. Epicenter at 34.673, -88.515 A map of the fault lines database from the United States Geological Survey. Maps of these fault lines can be Tap/click on "gear icon" for options and settings. 16 earthquakes in the past 365 days. They released this map for the lower 48 states in 2014. [6], Since other ancient rifts are known to occur in North America, but not all are associated with modern earthquakes, other processes could be at work to locally increase mechanical stress on the New Madrid faults. All rights reserved. Clanton The gulf-margin normal faults in Alabama and Florida are assigned as Class B structures because their low seismicity and because they may be decoupled from underlying crust, making it unclear if they can generate significant seismic ruptures that could cause damaging ground motion. at 05:33 January 19, 2022 UTC, Location: Triassic-Jurassic rifting and sedimentation, including deposition of the Louann Salt, led to Mesozoic growth faulting and salt tectonism. The post-rift sequence and its belt of gulf-margin normal faults may be mechanically decoupled from the underlying crust. 2.1 earthquake - 6.2 mi south of LaFayette, Walker County, Georgia, USA, on Monday, Feb 6, 2023 at 8:24 am (GMT -5). Lidar data acquired from the U.S. Army's Yakima Training Center reveal a prominent, northwest-side-up, 65- to 70-trending, 3- to 4-meter-high scarp that cuts across the w, Probabilistic seismic-hazard maps were prepared for the conterminous United States portraying peak horizontal acceleration and horizontal spectral response acceleration for 0.2- and 1.0-second periods with probabilities of exceedance of 10 percent in 50 years and 2 percent in 50 years. at 00:51 August 13, 2022 UTC, Location: (5.2 miles), 2022-12-24 22:49:49 UTC (1995). (6.2 miles), 2021-07-18 02:27:29 UTC YouTubes privacy policy is available here and YouTubes terms of service is available here. Who makes the plaid blue coat Jesse stone wears in Sea Change? [3], The broad, flat coastal plain stretches across the southern portion of the state, extending north from the Gulf coast to the Fall Line near Montgomery, Alabama. A line of large grabens approximates the landward limit of Jurassic salt, and Cenozoic faulting is sparse in the Interior zone (Ewing, 1991 #1994; Salvador, 1991 #2019; Ewing and Lopez, 1991 #2032). [7] Alabama also lies within the influence of the New Madrid Seismic Zone and the South Carolina Seismic Zone, earthquakes in those zones have resulted in damage in Alabama. Epicenter at 35.046, -85.128 According to the U.S. Geological Surveys self-reporting tool, the 3.1-magnitude quake was detected as far away as Mobile and Pensacola. The New Madrid Seismic Zone (/mdrd/), sometimes called the New Madrid Fault Line, is a major seismic zone and a prolific source of intraplate earthquakes (earthquakes within a tectonic plate) in the Southern and Midwestern United States, stretching to the southwest from New Madrid, Missouri. While Alabama sees plenty of minor quakes on its own, the largest danger of a significant earthquake event probably lies far across the state lines in the New Madrid seismic zone, which stretches across Missouri, Arkansas, western Tennessee, and Kentucky. Alabama's fault lines cause frequent small earthquakes, but have the potential to cause much more damage. Aliceville at 06:16 December 04, 2022 UTC, Location: Fault lines are really located everywhere, but it's usually the [3][5], This relative weakness is important, because it would allow the relatively small eastwest compressive forces associated with the continuing westward continental drift of the North American Plate to reactivate old faults around New Madrid, making the area unusually prone to earthquakes in spite of it being far from the nearest tectonic plate boundary. The fault could trigger the "Big One" and be followed by a tsunami, according to PHIVOLCS. at 06:20 December 22, 2021 UTC, Location: The data behind it was acquired in the early hours of Friday by the European Union's Sentinel-1A satellite as it traversed north to south over Turkey at an altitude of 700km (435 miles). at 12:50 August 21, 2021 UTC, Location: The interactive map to below shows epicenters of historical Alabama earthquakes since 1886 and surface and basement faults. [28] Seth Stein, the leader of the research group, published these views in a book, Disaster Deferred, in 2008. East Franklin Mountain Fault Courtesy of Dr. Jose Hurtado. [11], Alabama's abundant natural mineral resources include commercially viable deposits of coal, oil, natural gas, and various minerals such as limestone and marble. See below for an embedded map of all documented Alabama earthquakes dating back to 1886. C/Yellow. 3.2 km from reason i say this , is because the other night on at 06:37 April 07, 2021 UTC, Location: The GSA reported: "Near the epicenter, chimneys were knocked down, windows. Trion (6.2 miles), 2022-09-04 21:51:08 UTC In the winter of 1811-1812, a series of massive quakes ripped through the southeast Missouri, essentially destroying the town of New Madrid (pronounced mad-rid, not muh-drid), and causing major damage to St. Louis. In Alabama, this province generally lies north of the Tennessee River. Data for each event are provided. [9] Since 1886, slightly more than 10 percent of earthquakes with an epicenter in Alabama have been an estimated magnitude 3 or greater. Magnitude. That quake was the second largest ever recorded in Alabama, behind an estimated magnitude-5.2 quake that hit northern Shelby County in 1916. However, there are several intraplate faults running through the state that can cause frequent small earthquakes, and rare larger ones. The April 29, 2003 earthquake centered near Fort Payne, Alabama was felt over a wide area and received extensive media coverage. (8.2 miles), 2022-11-22 06:44:43 UTC The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, and perform research into the causes and effects of earthquakes. As of January 12, 2017, the USGS maintains a limited number of metadata fields that characterize the Quaternary faults and folds of the United States. Shedlock, and J.K. Odum. The amount of shaking an earthquake produces at a particular place depends not only on the earthquake's size, but also local characteristics like the bedrock type and soil type. (3.2 miles), 2022-12-04 10:57:58 UTC "A fault that could potentially slip in modern times. In 1997, the a magnitude-4.9 earthquake was recorded northeast of Atmore. Owens Cross Roads Greene County, south of Tuscaloosa, experienced 21 earthquakes in nine months from November 2014 to August 2015, including three separate earthquakes on a single day in February 2015, and a week in May 2015 that saw five earthquakes around Eutaw. Epicenter at 34.98, -86.619 at 07:37 February 24, 2023 UTC, Location: A fault line called the Pollard Fault System runs through the area of Escambia County, connecting with the Foshee Fault System in Florida. Although some of these ideas have gained some acceptance among researchers, they have not been accepted by the National Earthquake Prediction Evaluation Council, which advises the USGS. LaFayette A 2009 study estimated that a 7.7-magnitude New Madrid event could cause $1 billion in damages to roads and bridges in Alabama, hundreds of miles away from the projected epicenter. The strongest is a magnitude 4.7 that struck in 1973. UK NEWS: FIND OUT IF THERE ARE TRAIN STRIKES IN MARCH 2023 . The potential for the recurrence of large earthquakes and their effects today on densely populated cities in and around the seismic zone has generated much research devoted to understanding in the NMSZ. Epicenter at 34.598, -85.456 In a report filed in November 2008, the U.S. Federal Emergency Management Agency warned that a serious earthquake in the NMSZ could result in "the highest economic losses due to a natural disaster in the United States," further predicting "widespread and catastrophic" damage across Alabama, Arkansas, Illinois, Indiana, Kansas, Kentucky, Mississippi, Missouri, Oklahoma, Texas, and particularly Tennessee, where a 7.7 magnitude quake would cause damage to tens of thousands of structures affecting water distribution, transportation systems, and other vital infrastructure. Extensive oil and gas deposits have been developed in the southern portion of the state, Mobile Bay, and coastal state waters. [9] What are the disadvantages of a clapper bridge? The strongest earthquake in Alabama today occurred 19 hours ago: Minor mag. Epicenter at 32.874, -86.672 This almighty quake caused extensive damage to the transportation systems in central Alaska. Also, generalized fault data used in the hazard maps. This level of seismicity is even less than that of sparsely seismic North and South Dakota, which together cover approximately the same area as the belt of gulf-margin faults and which had seven earthquakes of MMI VI since 1909 (Stover and Coffman, 1993 #1986). These were interpreted as clear signals of the 18111812 earthquake series in tree rings. Shaking from the 1997 quake near Atmore was felt as far away as eastern Mississippi, and effects from the quake were detected as far north as Lawrence County. Its now been 207 years since the last major New Madrid seismic event. [4] The rift failed to split the North American continent, but it has remained as an aulacogen (a scar or zone of weakness) deep underground. 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