Therefore, the natural seismicity rate in the normal-fault belt might be even less than the recent historical record would indicate. The estimated magnitude of this earthquake ranged from 7.0 to 7.9 with a surface wave magnitude of close to 8.5. "Thats normal seismic activity for our area.. The 150-mile (240km)-long seismic zone, which extends into five states, stretches southward from Cairo, Illinois; through Hayti, Caruthersville, and New Madrid in Missouri; through Blytheville into Marked Tree in Arkansas. Trion 2 earthquakes in the past 30 days. This post-rift sequence thickens seaward (Salvador, 1991 #2020). what type of danger zone is needed for this exercise. A strike-slip fault is when two blocks slip past one another, like the San Andreas Fault line. The zone had four of the largest earthquakes in recorded North American history, with moment magnitudes estimated to be as large as 7.0 or greater, all occurring within a 3-month period between December 1811 and February 1812. Map showing recorded earthquakes in Alabama and the seismic zones that cause them. LaFayette San Andreas-like fault found in eastern U.S. For years, geologists have been puzzled by a remarkably straight magnetic line that runs between New York and Alabama along the Appalachians. On Wednesday, a 2.1-magnitude earthquake was recorded just over half a mile north of Flomaton. The largest quake to strike Alabama directly was a 5.1 magnitude that hit the Irondale-Easonville area on Oct. 18, 1916. Epicenter maps show only sparse, low-magnitude seismicity within the fault belt (Engdahl, 1988 #1959; Stover and Coffman, 1993 #1986). These maps are used in determining building seismic codes, insurance rates, and other public decisions. (8.2 miles), 2022-12-04 06:16:37 UTC occasions. Coordinates: .mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct{display:none}.mw-parser-output .longitude,.mw-parser-output .latitude{white-space:nowrap}3635N 8935W / 36.58N 89.59W / 36.58; -89.59. Seriously, check here first. what it was, we have felt it twice at night on different It can be particularly helpful for those who want to know what their risk of experiencing an earthquake is where they live. 2023-02-24 07:37:18 UTC (0.2 miles), 2022-04-21 18:01:25 UTC Tap/click on "gear icon" for options and settings. 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. Ebersole said those faults are the result of stresses from inside the plate, where geologic forces tried to break the plate apart, or fold it over on itself, but were not strong enough. [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. Aliceville The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of Advance Local. (9.2 miles), 2023-02-06 13:24:21 UTC ", 10.1130/0091-7613(1998)026<0515:ESITRD>2.3.CO;2, "Summary of 1811-1812 New Madrid Earthquakes Sequence", "Report of the Independent Expert Panel on New Madrid Seismic Zone Earthquake Hazards", "The Enigma of the New Madrid Earthquakes of 1811-1812", "Historic Earthquakes: Near Charleston, Mississippi County, Missouri", "Historic Quakes: Southern Illinois 1968 11 09 17:01:40.5 UTC", "Government warns of "catastrophic" U.S. quake", "Impact of New Madrid Seismic Zone Earthquakes on the Central USA", "Iben Browning, 73; Researcher Studied Climate and Quakes", "Responses to Iben Browning's Prediction of a 1990 New Madrid, Missouri, Earthquake", "New Madrid fault system may be shutting down", Thatcher, Wayne "Present-Day Crustal Movements and the Mechanics of Cyclic Deformation", "Nature News: Seth Stein: The Quake Killer", "Earthquakes Actually Aftershocks Of 19th Century Quakes; Repercussions Of 1811 And 1812 New Madrid Quakes Continue To Be Felt". All rights reserved (About Us). The 3.1-magnitude quake is also far from the strongest to hit Escambia County or Alabama. A teacher walks into the Classroom and says If only Yesterday was Tomorrow Today would have been a Saturday Which Day did the Teacher make this Statement? at 02:27 July 18, 2021 UTC, Location: Multiple landslides and rock avalanches occurred in the Alaska Range and Black Rapids Glacier. Dalton The New Madrid Seismic Zone (/ m d r d /), 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.. 9.2 km from (5.2 miles), 2021-08-21 12:50:14 UTC [7][8] The largest earthquake in recorded Alabama history measured an estimated magnitude of 5.1 and occurred October 18, 1916 near Irondale, and resulted in widespread panic, damage to structures, and dramatic changes in water well levels. Epicenter at 34.828, -85.811 In early to middle Mesozoic time, the opening of the Gulf of Mexico formed a south-facing, rifted, passive margin at the southern edge of North America (DuBar and others, 1991 #2010; Salvador, 1991 #2019; Salvador, 1991 #2020). USGS scientists update these maps as they get more data and their knowledge about earthquake hazards improves. It also covers a part of West Tennessee, near Reelfoot Lake, extending southeast into Dyersburg. Interactive map of earthquakes in Alabama The Geological Survey of Alabama provides an online interactive map of earthquake information for 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). 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. Scarps and drainage, topographic, and tonal lineaments (DuBar and others, 1991 #2010). (8.2 miles), 2022-12-04 08:07:27 UTC at 10:57 December 04, 2022 UTC, Location: This earthquake, which occurred Dec. 20 about three miles outside of Bryant, Ala. near the Tennessee border, had a magnitude of just 1.8, meaning it would be very hard to detect without. Latest Earthquakes Latest earthquakes map and list (past 24 hours, M2.5+) from the ANSS (Advanced National Seismic System). Everyone Practices Cancel Culture | Opinion, Deplatforming Free Speech is Dangerous | Opinion, 4.4 Magnitude Earthquake Rumbled Tennessee, Says USGS, East Antartica Glaciers Melting at 'Systematic' Rate. in the U.S. east of the Rocky Mountains. Map showing Quaternary faults in the western U.S. and Pacific Ocean. In October 2009, a team composed of University of Illinois and Virginia Tech researchers headed by Amr S. Elnashai, funded by the Federal Emergency Management Agency, considered a scenario where all three segments of the New Madrid fault ruptured simultaneously with a total earthquake magnitude of 7.7. Evidence has also been found for an apparent series of large earthquakes around 2350 BC. The presence of the normal faults throughout the post-rift sequence from westernmost Florida to southern Texas (Ewing and Lopez, 1991 #2032) demonstrates that the sequence is sliding and extending seaward on detachments in weak salt and overpressured shales. at 06:19 August 25, 2021 UTC, Location: Join half a million readers enjoying Newsweek's free newsletters. at 21:51 September 04, 2022 UTC, Location: That area was sparsely populated then (the city of Memphis had not yet been founded), but similar quakes today would cause massive damage, potentially stretching into north Alabama. Although estimates vary widely, the most reliable surveys of casualties indicate that th, The maps presented here provide an update to the 2008 data contained in U.S Geological Survey Scientific Investigations Map 3195 (http://pubs.usgs.gov/sim/3195/).Probabilistic seismic-hazard maps were prepared for the conterminous United States for 2014 portraying peak horizontal acceleration and horizontal spectral response acceleration for 0.2- and 1.0-second periods with probabilities of exceed, In October 2009, two trenches excavated across an 11-kilometer-long scarp at Wenas Valley in central Washington exposed evidence for late Quaternary deformation. (July 17, 2014), "Center for Earthquake Research and Information at the University of Memphis", "Reelfoot rift and its impact on Quaternary deformation in the central Mississippi River valley", "Reelfoot Rift: Reactivated Precursor to the Mississippi Embayment", 10.1130/0016-7606(1975)86<1287:RRRPTT>2.0.CO;2, "Uncovering Hidden Hazards in the Mississippi Valley", "USGS Earthquake Hazards Program, Earthquake Report: Kentucky", 10.1130/0091-7613(2001)029<0175:DDTISI>2.0.CO;2, "Sinking Mafic Body in a Reactivated Lower Crust: A Mechanism for Stress Concentration at the New Madrid Seismic Zone", "Descent of the ancient Farallon slab drives localized mantle flow below the New Madrid seismic zone", "How old is the New Madrid Seismic Zone? The map clearly identifies the locations of the great earthquakes (M8.0 and larger) and the, This report provides trench photomosaics, logs and related site information, age data, and earthquake event evidence from three paleoseismic trench sites on the Bear River Fault Zone. earthquake, which occurred on Aug. 23, 2011, was not related to any at 11:22 March 14, 2021 UTC, Location: [13], The first scientific reports of Alabama's geology were made during field studies by R. T. Brumby in the late 1830s and Sir Charles Lyell in the early 1840s. Booneville We do have episodes of this kind of seismic activity clusters once in a while, Ebersole said. Advanced National Seismic System Latest earthquakes map and list (past 24 hours, M2.5+). Copyright 2023. rest of the gulf coast. Epicenter at 34.98, -86.619 [1][5] This province is further divided into the Interior Low Plateaus province. at 06:37 April 07, 2021 UTC, Location: Lakesite AGI's Critical Issues Program is generously underwritten in memory of Charles L. Weiner. 20, p. 207, "East Gulf Coastal Plain Ecoregional Plan", https://en.wikipedia.org/w/index.php?title=Geology_of_Alabama&oldid=1106112936, Articles with dead external links from January 2017, Articles with permanently dead external links, Articles with dead external links from November 2018, Creative Commons Attribution-ShareAlike License 3.0, This page was last edited on 23 August 2022, at 07:29. If you purchase a product or register for an account through one of the links on our site, we may receive compensation. [26][27] Browning appears to have based this prediction on particularly strong tidal forces being expected during that time, and his opinion that a New Madrid earthquake was "overdue;" however, seismologists generally agree that no correlation exists between tides and earthquakes. The earthquake produced surface rupture distributed across a 28-km-long zone along the eastward projection of the Candelaria fault in the Mina deflection of the central Walker Lane. (1.2 miles), 2022-03-30 06:19:59 UTC Since 1812, frequent smaller earthquakes have been recorded in the area. The northeast corner of the state is subject to the greatest peak accelerations due to the presence of the East Tennessee Seismic Zone. Stevenson 11.2 km from Thorsby Consistent with the stress field in the post-rift sequence, the normal-faulting focal mechanism of the 1997, M 4.9 earthquake in southwestern Alabama indicated south-southwest extension (Chang and others, 1998 #1806). Bookmark this page to return to map/list with the same settings or save your settings with the button below. 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. [3] The Reelfoot Rift was first described by Ervin and McGinnis (1975) and believed to be of late Precambrian age. A recently active fault strand is defined here as having evidence consistent with slip during the Holocene epoch (approxim, The magnitude (M) 7.0 Haiti earthquake of January 12, 2010, triggered landslides throughout much of Haiti on the island of Hispaniola in the Caribbean Sea. 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