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“And then you have little shifts and that’s what ends up initiating your earthquakes.”. three earthquakes recorded near the Alabama-Florida, magnitude-2.6 earthquake was recorded near Century, Florida, U.S. Geological Survey’s self-reporting tool. A fault line called the Pollard Fault System runs through the area of Escambia County, connecting with the Foshee Fault System in Florida. The Mississippi River appeared to flow backwards for a time, and changed course permanently when it began running south again.
Community Rules apply to all content you upload or otherwise submit to this site. Alabama's fault lines cause frequent small earthquakes, but have the potential to cause much more damage.
No data point selected. The largest quake recorded this year had a magnitude of 2.8, barely on the threshold of being noticeable, but it's still much more powerful than the Bryant quake. The USGS is reporting a magnitude 4.0 earthquake has struck centered just east of Flomaton near Pollard, Alabama, just north of the Florida state line. Things have changed since then. Fault lines are fractures in the earth’s crust which form beneath the surface where major rock formations come into contact. On March 6, a magnitude-2.6 earthquake was recorded near Century, Florida, close to the Alabama border. The mechanics of this type of fault line are more complex, but many result from old fissures where a plate began to split in two, but held together instead, as the geologic forces weren't quite enough. "That’s normal seismic activity for our area.”. com. Note to readers: if you purchase something through one of our affiliate links we may earn a commission. Registration on or use of this site constitutes acceptance of our User Agreement, Privacy Policy and Cookie Statement, and Your California Privacy Rights (each updated 1/1/20).
Alabama participates every October in the Great Shake-Out preparedness drill, educating people on what to do in the event of an earthquake. The earthquake occurred at … “With all the pressure of the continents that are actually still moving around, they’re 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. The Geological Survey of Alabama is committed to producing new geologic maps in areas where basic geologic data are needed to support industrial and urban development.
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The Geological Survey of Alabama provides an online interactive map of earthquake information for Alabama.
According to the U.S. Geological Survey historical earthquake records a major earthquake (estimated magnitude 6-7) occurred near Pensacola, Fla. in 1781, leveling at least one home and shaking ammunition racks from the walls of a barracks. Yasamie Richardson, external affairs director with the Alabama Emergency Management Agency, said the state has taken several steps to prepare for the possibility of a large quake, either from our own fault zones, or from a New Madrid event.
The biggest earthquake threat to Alabama though may come from out of state, and the New Madrid (pronounced mad-rid, not muh-drid) Seismic Zone. Richardson said a full list of tips and instructions are available on the website shakeout.org, but the basic plan is simple: Drop, cover and hold on. Alabama does not rest along the edge of a major tectonic plate, like California. The researchers' model of a 7.7-magnitude earthquake near Memphis would cause significant impacts to Alabama, including two fatalities and $1 billion in damages to building, roads, bridges and pipelines throughout the state. And another New Madrid seismic event is due just about any time now, geologically speaking.
That quake was the second largest ever recorded in Alabama, behind an estimated magnitude-5.2 quake that hit northern Shelby County in 1916. Deep below the surface of northeast Alabama, building tension inside a tectonic plate releases a burst of seismic energy that rumbles through the Earth's crust, pulsing out in waves in every direction. Clicking on each dot will display additional information about the quake.
Alaska has more large earthquakes than the rest of the United States combined. Seismic and Aseismic Slip: Tectonic tremor and associated slow slip events represent a newly discovered part of the earthquake cycle. On Wednesday, a 2.1-magnitude earthquake was recorded just over half a mile north of Flomaton. "I think one of the issues we have in Alabama, we have so many disasters it's just hard for people to really stop and take it seriously, the way they need to," Richardson said.
Alabama has a number of fault lines running through it, even though it is not on the edge of a tectonic plate. "If you're in the right place at the right time, very close to the epicenter, standing still, you might be able to feel a 2.0 or 2.5," Ebersole said. Sandy Ebersole, who heads the division of the Geological Survey of Alabama that documents and studies earthquakes in the state, said it’s not unusual or surprising to have multiple small-scale earthquakes in quick succession in the state. Alabama is also a member of the Central U.S. Earthquake Consortium, a group of eight states that would be most impacted by a large New Madrid quake. “We do have episodes of this kind of seismic activity clusters once in a while,” Ebersole said. Since the last revisions to the map for Alaska in 2007, scientists have made significant advances in understanding active faulting, fault slip rates, and fault behavior. Variation is part of the natural occurrence.".
Alabama spans three continental geologic provinces as defined by the United States Geological Survey, the Atlantic Plain, Appalachian Highlands, and Interior Plains. Community Rules apply to all content you upload or otherwise submit to this site.
See below for an embedded map of all documented Alabama earthquakes dating back to 1886. Registration on or use of this site constitutes acceptance of our User Agreement, Privacy Policy and Cookie Statement, and Your California Privacy Rights (each updated 1/1/20). The Bahamas Fracture Zone runs from the Florida Panhandle northwest across lower Alabama into Mississippi, as shown in this map from the Geological Survey of Alabama. All information managed by the Geological Survey of Alabama.
This research aims to better characterize the earthquake potential of the southern Fairweather Fault in order to provide more accurate fault source data for the USGS National Seismic Hazard Map. 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. Because the damage in other states would likely be more severe than in Alabama, the state would serve more of a logistical support role after a New Madrid event, Ebersole said.
In April 2003, a 4.9-magnitude shook DeKalb County and surrounding areas from an epicenter about 10 miles northeast of Fort Payne. Thankfully, in 1812, much of the area affected by the quakes was sparsely populated. The third major quake practically destroyed the town of New Madrid -- it was abandoned for a time after the quake -- and caused extensive damage in St. Louis. "There's a record going back several thousands of years in the geology of the area, and the floodplains of the Mississippi River that have recorded repeating large-magnitude earthquakes in the New Madrid seismic zone," Ebersole said. In the winter of 1811-1812, a series of three powerful earthquakes (and several aftershocks) rocked southeast Missouri, sending shockwaves that were felt thousands of miles away, rattling furniture at the White House and ringing church bells in Charleston. The earthquake that occurred Wednesday didn't happen near a fault line in Tennessee, for the most part, the state is free of any faults that would suggest a vulnerability to earthquakes. "How are we preparing and how should we prepare? According to the U.S. Geological Survey’s self-reporting tool, the 3.1-magnitude quake was detected as far away as Mobile and Pensacola.
Dec. 20 about three miles outside of Bryant, Ala. most impacted by a large New Madrid quake. 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. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of Advance Local.
The three earthquakes recorded near the Alabama-Florida state line since March 6 are part of the “normal seismic activity,” of the area, according to the director of Alabama’s Geological Investigations Program. "People feel like an earthquake in Alabama, while we've had several this year, I don't think they realize the potential for us to have something of a serious magnitude.". Geographic Names Information System (GNIS), Mapping, Remote Sensing, and Geospatial Data, Characterizing the Active Queen Charlotte-Fairweather Fault System. Alabama shakes: Small earthquakes common, potential for big one exists.
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Six miles up, on the surface, probably no one noticed. "Really for a New Madrid large-magnitude event, it would be multiple states impacted and would require some of that neighborly help, helping where we can and how we can.". Three quakes so close together might qualify as unusual, but it’s hardly unprecedented.
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 instruments, according to Sandy Ebersole, director of the Geologic Investigations Program at the Geological Survey of Alabama. More than three-quarters of the state’s population live in an area that can experience a magnitude 7 earthquake. Image of Alaska fault model under development in the geographic information systems environment. "Sometimes this is a topic that's overlooked," Richardson said. All rights reserved (About Us). "Usually by a magnitude 3.0 or higher people start noticing those.".
Our research provides objective science that helps stakeholders prepare for and mitigate the effects of future earthquakes and tsunamis, which bolsters the economic health and well-being of Alaska and the... Our research team is exploring seismic and aseismic slip along the Alaska-Aleutian arc and studying the prehistoric record of megathrust earthquakes and tsunamis along the Alaska-Aleutian subduction zone. Our approach interrogates lidar data and satellite imagery, applies paleoseismological methods to examine earthquake history, and leverages partnerships with USGS scientists from Colorado and... Below are multimedia items associated with this project.
Missouri wasn't yet a state, and Memphis, Tenn. hadn't been founded. A 4.0-magnitude event is 100 times more powerful than a 2.0. An overnight earthquake hits the towns of Valley Head and Mentone, near the epicenter of the quake, damaging houses and school, though with no injuries reported. 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.
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