The New Madrid earthquakes, which occurred from December 16, 1811 and in January and February of 1812, was a series of four earthquakes which hit the midwest in New Madrid, which is now part of Missouri. The quakes were felt quite over more than 1 million square miles.
 
 
Feature Article
15 Days of Shaking and A Murder Solved
In 1811 and 1812, the Great Comet remained visible to the naked eye for
months; King George III of England
was dethroned due to his long-term mental
illness and was replaced by his son, George IV, who ruled as Prince
Regent; Argentina
declared its independence from Spain;
the Luddites began to riot in protest of the Industrial
Revolution in northern England, President
Madison enacted a 90-day embargo on trade with the United Kingdom;
and the United
States Congress declared what would become known as the War of 1812.
But perhaps the biggest event -- and perhaps the least remembered in this
day and age -- to have taken place were the New Madrid earthquakes, an
intense series of extremely large earthquakes and thousands of aftershocks
which began in 1811 and ended in 1812. The prolonged, months-long event
was named after the largest settlement in the affected region, which was
between Natchez,
Mississippi and St.
Louis, Missouri in the Louisiana Territory.
There were constant and numerous reports before the quakes mentioned that
people had heard and felt what were described as artillery or "cannon
booms" coming from beneath the ground for up to three years before the
quakes.
Newspaper
articles about the second and third quakes make it difficult to figure out
what damage and side effects are actually from which earthquake because
published accounts from the time describe the cumulative effects of all of
the quakes. Add to that the fact that the Ohio River was iced over by the
time of the second principle quake, so there were few people on the river
to report the events.
The First Earthquake
The first quake, centered in northeast Arkansas,
surprised everyone at 2:15 local time. Although there were no instruments
to measure earthquakes in 1811, it is now estimated to have been between a
magnitude 7.7 and 8.1.
This tremor damaged about 600,000 square miles but shook more than 965,255
square miles severely enough to alarm those who felt it, throughout the
entire eastern United
States. People were shaken awake in Charleston,
New
York City, Detroit,
and Richmond.
In Nashville,
Tennessee and Louisville,
Kentucky, the shaking lasted three minutes. As the country was still
reeling from the first one, an aftershock of approximately 7.0 magnitude,
hit six hours later, at 8:15 am.
What was the largest sand boil in the world until 2011 was created by the
quake, and can still be seen on the so-called Missouri
Boot Heel, which is the southeast corner of the state approximately eight
miles west of Hayti,
Missouri. Sand boils are frequently called sand volcanoes, and they
are caused by pressure welling up through a bed of liquifying sand. They
reportedly look like the water is boiling up from the bed of sand beneath
it.
This quake, as well as the other major quakes in this series, was felt in
Boston,
where church bells rang incessantly due to the motion. In Washington
D.C. President Madison and his wife, Dolley, reported feeling them
in the White House.
The Second Earthquake
The second quake is usually thought to be the smallest of the three large
shakers. It came on January 23, 1812, with a magnitude of 7.5, centered in
the Missouri Boot Heel, shaking Missouri and Tennessee
in a major way, though it was felt as far away as New
Jersey.
It triggered severe landslides, ejections, fissures, and stream bank
cave-ins.
Seismoluminescence, or "earthquake lights," flashed from the undulating
ground, most probably caused by quartz crystals
being squeezed by the crushing and releasing of the earth.
The Third Earthquake
And the final quake of the series, with a magnitude between 7.7 and 8.8, was at 4:45 in the
morning of February 7, 1812. The epicenter of this one was New Madrid,
which was almost entirely destroyed by it. The consensus is that this was
the most severe quake in the series.
This last quake destroyed the town of New Madrid, and it damaged houses in
St.
Louis, causing chimneys to crumble.
It caused temporary waterfalls on the Mississippi, caused the river to run
backwards for several hours, and created Reelfoot Lake when the land
heaved up, blocking several large streams. It also drowned people living
in an Indian village near the Reelfoot and destroyed thousands of acres of
forest.
Each of these three earthquakes remain on the list of America's "top"
earthquakes, and most certainly would have caused more damage to life and
structures had they not been in the relatively sparsely populated
Mississippi Valley.
Solving the Murder of George Lewis
The New Madrid Earthquakes even helped to solve a murder!
George Lewis, who was known locally as "Slave George," was murdered in
western Kentucky
during the late night/early morning of December 15-16, 1811 by Isham and
Lilburn Lewis, who were nephews of Thomas
Jefferson and descendants of Meriwether Lewis, who was famous for
his involvement of the Lewis and Clark expedition.
George was a slave,
born in Virginia and owned by Lilburne, and was 17 when he was killed. The two
brothers were drinking the night of the 15th when George accidentally
broke a pitcher which had belonged to their mother. With seven or eight
other slaves present, the two brothers tied George up and hacked and
beheaded him with an axe.
According to accounts of the murder -- which were scant due to the news of
the earthquakes at exactly the same time -- the two planned to have the
slaves who had witnessed the crime burn George's dismembered body,
but while the preparations were in progress, the first of the earthquakes
stuck, which caused the chimney to collapse into the fireplace around what
was meant to be a pyre.
The brothers had the other slaves rebuild the chimney, and when it was
complete, hid the corpse in the new chimney.
The subsequent quakes caused the new chimney to partially collapse yet
again, and in March of 1812, a dog
belonging to a neighbor apparently found the man's skull and dropped it on
a nearby road.
The neighbors began to put the pieces together, and they eventually
discovered the murder. The torturous murder of slaves was a crime, and the
brothers were arrested and charged with the murder.
They bailed out of jail and according to accounts and evidence, entered
into a suicide
pact; however, only Lilburne died in the event. Isham was re-arrested as
an accessory to the suicide, but he somehow managed to escape.
It is believed that Isham enlisted in the United States Army
the day before the War
of 1812 was declared and was one of seven Americans killed at the
Battle of New
Orleans.
Recommended Resources
The Great New Madrid Earthquake
Contains a modified Mercalli map of a 6.5 magnitude earthquake, which is what New Madrid quake was said to have been. Additionally publishes an account and discussion about that quake, comparing it to the one in Kobe, Japan.
http://hsv.com/genlintr/newmadrd/index.htm
The Lost History of the New Madrid Earthquakes
Recounts the New Madrid earthquakes with notes from frontiersman Davy Crockett and other accounts, the probable causes of those tremors, and other interesting facts.
http://press.uchicago.edu/books/excerpt/2013/valencius_earthquakes.html
News of the December 16, 1811 earthquake from various newspapers of the day accompany links to articles about aftershocks, which continued into 1812.
http://history.hanover.edu/texts/1811/Web/Topic-Earthquake.html
USGS: New Madrid 1811-1812 Earthquakes
The US Geological Survey, the official government site which gathers and provides information about earthquakes, offers its summary of the swarm of quakes, images from the disaster, and eyewitness accounts.
http://earthquake.usgs.gov/earthquakes/states/events/1811-1812.php