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The Wetumpka impact crater is the only confirmed impact crater in Alabama, United States.It is located east of downtown Wetumpka in Elmore County.The crater is 4.7 miles (7.6 km) in diameter, and its age is estimated to be about 85 million years (late Cretaceous), [1] based on fossils found in the youngest disturbed deposits, which belong to the Mooreville Chalk Formation.
Wetumpka (US: / w ɪ ˈ t ʌ m k ə /) is a city in and the county seat of Elmore County, Alabama, United States.At the 2020 census, the population was 7,220. [2] In the early 21st century, Elmore County became one of the fastest-growing counties in the state. [3]
Location Diameter (km) Age (years) Coordinates Probability Alamo bolide impact: Nevada: unknown 367 million Bow City: Alberta: 8 km 70 million Corossol: Quebec: 4 km 2.6 million Decorah crater: Iowa: 5.6
The EID lists fewer than ten such craters, and the largest in the last 100,000 years (100 ka) is the 4.5 km (2.8 mi) Rio Cuarto crater in Argentina. [2] However, there is some uncertainty regarding its origins [ 3 ] and age, with some sources giving it as < 10 ka [ 2 ] [ 4 ] while the EID gives a broader < 100 ka.
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The hills just east of downtown showcase the eroded remains of the five-mile (8.0 km) wide impact crater that was blasted into the bedrock, with the area labeled the Wetumpka crater or astrobleme ("star-wound") for the concentric rings of fractures and zones of shattered rock can be found beneath the surface. [5]
Wetumpka crater This page was last edited on 4 September 2017, at 17:50 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4. ...
A 5-mile (8 km)-wide meteorite impact crater is located in Elmore County, just north of Montgomery. This is the Wetumpka crater , the site of "Alabama's greatest natural disaster". A 1,000-foot (300 m)-wide meteorite hit the area about 80 million years ago. [ 99 ]