The seismograph was not invented until the later part of the nineteenth century. So the magnitude and exact locations of the earthquake(s) that occurred on the New Madrid Fault (or Reelfoot Rift ) in 1811 and 1812 are not known. Evidence from "sand blows" indicate the epicenter of one of the larger ones that occurred on February 7 of 1812, was near the town of New Madrid, Mo.
A big earthquake in 1812
This is actually a two part answer:1. The largest earthquake in continental US history. A: March 27 1964, Prince William Sound Alaska. 9.22. The largest earthquake in the Contiguous US history.A: New Madrid. 1811 - 1812, 7.9Facts: A series of earthquakes hit the New Madrid seismic zone of southeastern Missouri, northeastern Arkansas, and adjacent parts of Tennessee and Kentucky, in December 1811 to February 1812. Three earthquakes had a magnitude of 7.0 or greater. The first earthquake 7.7 occurred December 16, 1811, at 2:15 a.m.; the second 7.7 at 9 a.m. on January 23, 1812; and the third 7.9 -8.0 on February 7, 1812, at 3:45 a.m. These three earthquakes were among the largest to strike North America since European settlement.The main shocks were followed by many hundreds of aftershocks that lasted for decades. Many of the aftershocks were major earthquakes themselves. The area that was strongly shaken by the three main shocks was 2--3 times as large as the strongly shaken area of the 1964 M9.2 Alaskan earthquake, and 10 times as large as that of the 1906 M7.8 San Francisco earthquake.
Indiana and a number of neighboring states experience earthquakes, which in modern times have been small and nondestructive. It is unusual to have a major fault in the middle of a continent, but that does exist in this region.Southern Indiana is close to the New Madrid fault. New Madrid, now in Missouri, was the location of the New Madrid earthquakes, 1811-1812, which historical accounts suggest were the largest ever recorded in the eastern US and possibly the largest in North America. The fault is now well mapped and the active area includes several neighboring states and much of Indiana.
The New Madrid Earthquakes of 1811-1812 had a significant impact on Tennessee, causing extensive land deformation, including the creation of new lakes and the alteration of the Mississippi River's course. The seismic activity resulted in widespread destruction of buildings and homes, displacing many residents. The quakes also instilled fear among the population, leading to long-term changes in settlement patterns and land use in the region. Overall, the earthquakes reshaped both the physical landscape and the social dynamics of Tennessee.
Pyrimads of Giza
The 1812 New Madrid earthquake caused serious land deformations and the river flowed backwards for 10-24 hours and created Reelfoot lake
The 1812 earthquake, known as the New Madrid earthquake, occurred in the central United States near the town of New Madrid, Missouri. It is considered one of the largest earthquakes to ever hit North America.
In 1811-1812 the New Madrid earthquakes took place. I'm not sure if this is the one you mean, but I hope so. The 1812 Febuary earthquake had a magnitude of 7.7 on the Richter scale.
The strongest earthquake recorded in the New Madrid Seismic Zone was a series of three earthquakes in 1811-1812 with estimated magnitudes of 7.5-7.9. These earthquakes were among the largest ever recorded in the central United States and caused widespread damage across the region.
1811/1812 earthquake along New Madrid fault line. Mississippi river ran backwards three days and made lake
The mission suffered from a devastating earthquake in 1812.
The New Madrid earthquake of 1812 is estimated to have resulted in few to no deaths, as the area was sparsely populated at the time. It is believed that most fatalities occurred due to collapsing buildings rather than the earthquake itself.
A big earthquake in 1812
An earthquake in Arkansas, and reached a 7.7 on the Richter scale.This happened on December 16, 1811.Hope that answer was good.Wiki-wiki answers, yeah!
They have a nice story about it @ Wikipedia. They say it occurred in 1812, and it caused the Mississippi River to change course and also flow in reverse for a short time. I remember hearing that on a television show about it.
The New Madrid earthquake in 1811 and 1812 caused the Mississippi River to flow backwards temporarily and created new land formations in the region.
1812 12 21 - Santa Barbaraa, California - M 7.11812 12 08 - San Juan Capistrano, California - M 6.91812 02 07 - New Madrid Region - M 7.71812 01 23 - New Madrid Region - M 7.51811 12 16 - New Madrid Region - M 7.01811 12 16 - New Madrid Region - M 7.7