Showing posts with label River. Show all posts
Showing posts with label River. Show all posts

Monday, July 9, 2012

The Day the Mississippi River Ran Backward

The Mississippi River
The Mississippi River is part of the largest and most powerful river system in North America. Flowing entirely in the United States, it runs southward for 2,530 miles. It drains 31 different states and is the fourth longest and tenth biggest river in the world. But in 1811 and 1812, a series of powerful earthquakes struck so hard that for one day, the mighty Mississippi ran backward.

On the early morning of December 16, 1811, the tiny town of New Madrid, Mississippi, was struck by an earthquake. With less than a thousand residents in the area, there was little damage and no deaths. Then, a few hours later, between 7:15 and 8:15 am, another quake struck, only much larger in magnitude. This second quake registered an 8.6, knocked people off of their feet, snapped trees in half, and destroyed buildings in the area. The quake caused fissures to open in the ground, and sulphur pockets erupted. Thousands of acres of forest were flooded by the rise in the Mississippi river.

A third earthquake struck the same region on January 23, 1812. This one was slightly smaller, registering an 8.4, but causing the same type and amount of damage. Thankfully the death toll was lower, since the area was still recovering from the last great quake.

But the earth wasn't done with New Madrid just yet.

The destruction of New Madrid, Mississippi
On Februrary 7, 1812, at 4:45 am, the fourth and largest earthquake struck. It registered an 8.8 and the town of New Madrid was destroyed in seconds. The quake caused depressions in the waterbed of the river, creating massive whirlpools. The movement of the ground under the New Madrid area also created a thrust fault, where ground on one side of a fault moves up and over the other side of the fault. This thrust fault caused large sections of the Mississippi to rise up, creating huge waterfalls, throwing at least 30 ships around like paper, and forcing the waters of the river to flow north!

The quake was felt thousands of miles away: In Boston and Toronto, church bells rang with the swaying of the ground; walls in Cincinnati, Ohio crumbled; sidewalks spilt and cracked like eggs in Washington D.C. In and around the New Madrid area, large islands in the middle of the Mississippi, once used by pirates, disappeared forever. Reelfoot Lake in Tennessee and Big Lake in Arkansas were created in one night, as the river flowed into newly created depressions.

Damage comparison between New Madrid, MS in 1812
and Northridge, CA in 1994
It took several hours for the Mississippi River to correct itself and begin flowing south once again.

Aftershocks continued for several years after the series of earthquakes officially ended in March, 1812.

What was once the New Madrid area is still an active fault line. Experts predict that in the next 50 years, there is a 40 percent chance of 6.0 earthquake or greater on the New Madrid fault line, and a 10 percent chance of an earthquake between 7.5 and 8.0. An earthquake of 7.5 or greater in this area today would result in the largest natural disaster in United States history.

Thursday, April 26, 2012

The City That Was Destroyed by a Fireball


Peshtigo, Wisconsin. October 8, 1871. A tiny, little logging town in the heart of America. Largely unknown, and yet the site of one of the most severe, under-reported fires not just in American history, but in human history as well; an event that left 1,200 people dead in less than 10 minutes, as a giant fireball engulfed the town, the countryside, and everything else in its path.

October 8th was a Sunday: hot and dry, with less than two inches of rain that summer. The population of the town that morning was roughly 2000, and they had been beaten down by the relentless drought and heat. In addition to the townsfolk, the population had swelled even more over the past few weeks, thanks to the abundance of volunteers in town to help fight the small wildfires that were already popping up across the area. There were so many small fires that the smoke hung in the air like a heavy drapery, making it difficult to breathe.

At 8:30 pm, there was a dull roar that raised the alarm in the town. Strong winds had whipped the surrounding wildfires into a blazing inferno that was barreling towards Peshtigo. Firefighters quickly threw in the towel, when their buckets of water failed to stop the blaze. Suddenly, a surge of flames, roasting at over 2,000 degrees Fahrenheit, blasted into the town. The combination of heat and wind created superheated tornadoes with terrifyingly strong speeds. Sand, debris, and burning chards and embers began to rain down on the town, almost as if fire were dropping from Heaven itself. People ran for their lives.

According to eyewitness accounts, the air was literally on fire. In addition to the terrifying sound of the fire licking away at the buildings, the town began to fill with the shrieks and cries of its citizens, as they watched each other being burned alive. Panic turned into hysteria. Some people jumped into wells, only to find the water there boiling; some dropped dead as they breathed, the air being so hot it burned their lungs.

There was only one possible escape: the river, and they headed that way in droves. With hundreds of people standing on it, the bridge over the river collapsed. Those that weren’t crushed, rushed deeper into the river, seeking protection, only to be flattened by falling debris, burned by sparks that fell from the sky or drowned by the multitudes of people crowding in.

An excerpt from "The Great Peshtigo Fire” gives this first-hand account:
It was about ten o'clock when we entered into the river. ... Once in water up to our necks, I thought we would at least be safe from the fire, but it was not so; the flames darted over the river as they did over the land, the air was full of them, or rather the air itself was on fire.

After 90 minutes, the burning hell’s winds changed direction, the fire blew back on itself, and it burned out. The next day, it began to rain.

More than 1,200 people died that day in less than 10 minutes.  The entire town was destroyed, save for one building which managed to survive. In the surrounding land, over 1.25 million acres of forest and prairie were charred to nothing.

Eventually the town recovered and people returned. Peshtigo, Wisconsin still exists today.