On Shaky Ground: The New Madrid Earthquakes of 1811-1812 (Missouri Heritage Readers)
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Refresh and try again. Open Preview See a Problem? Details if other :. Thanks for telling us about the problem. Return to Book Page. Although most Americans associate earthquakes with California, the tremors that shook the Mississippi valley in southeast Missouri from December 16, , through February 7, , are among the most violent quakes to hit the North American continent in recorded history. Collectively known as the New Madrid earthquakes, these quakes affected more than 1 million square mile Although most Americans associate earthquakes with California, the tremors that shook the Mississippi valley in southeast Missouri from December 16, , through February 7, , are among the most violent quakes to hit the North American continent in recorded history.
Collectively known as the New Madrid earthquakes, these quakes affected more than 1 million square miles. By comparison, the San Francisco earthquake affected only 60, square miles, less than one-sixteenth the area of the New Madrid earthquakes. Scientists believe that each of the three greatest tremors would have measured more than 8. The quake zone was in constant movement during this period. Five towns in three states disappeared, islands vanished in the Mississippi River, lakes formed where there had been none before, and the river flowed backward for a brief period.
Providing eyewitness accounts from people both on the land and on the river, Bagnall captures the fears of the residents through their tales about the smells and dark vapors that filled the air, the cries of the people, the bawling of animals, and the constant roar of the river and its collapsing banks. On Shaky Ground also traces the history of the founding of New Madrid and considers the impact of the earthquakes on population and land in southeast Missouri. Predictions for future earthquakes along the New Madrid fault, as well as instructions on preparing for and surviving a quake, are also included.
Informative, clearly written, and well illustrated, On Shaky Ground will be of interest to all general readers, especially those interested in earthquakes or Missouri history. Get A Copy. Paperback , pages. More Details Original Title. Other Editions 1. Friend Reviews. To see what your friends thought of this book, please sign up. To ask other readers questions about On Shaky Ground , please sign up. Lists with This Book. Community Reviews. Showing Rating details. More filters. Sort order. Dec 16, Timothy Allen rated it liked it Shelves: disaster-reading-club.
This was charming. Certainly not an in-depth study, but it had some nice personal story-line from the author.
As far as I could tell, there wasn't really all that much to tell about this earthquake: less than 2, people lived in New Madrid when the quakes happened. At pages-even of big font, I finished this off in an afternoon. May 19, Julie rated it liked it Shelves: disasters. Simplistic overview of the earthquakes, timelines, and events plus current information on area as of publication. Some interesting informational tidbits. Quick read. Marsha Wilson rated it really liked it May 19, Lisa A Pearcy rated it liked it Oct 23, Sally Felt rated it liked it Apr 27, Marian Nanney rated it liked it Nov 11, Delmar Mark Tyler rated it it was amazing Jun 23, Just why earthquakes occur in the Morenci area is subject to speculation.
No faults have been positively identified, but the topography suggests that a fault exists in the area. The Morenci area has long been seismically active. In May of , 12 earthquakes ranging from Md 2. Arizona is divided into two main physiographic provinces. In the northeast is the high-elevation Colorado Plateau characterized by mainly flat-lying sediments.
This area is characterized by faults and marks the boundary between the zone of crustal extension and the more stable plateau. The Morenci area earthquakes occur in this transition zone and may reflect continued crustal adjustment to the on-going extension. They will be joined by thousands more in state and federal offices, tribal communities, civic groups, and businesses and by more than 13 million nationwide most in California.
Each year hundreds of earthquakes occur in Arizona. Most go unfelt, but the potential for rare, life-threatening, large magnitude earthquakes exists. Faults in Arizona, surrounding states and Mexico are capable of damaging earthquakes up to magnitude 7.
During an earthquake the greatest immediate danger in most homes and buildings is from flying or falling items — ceiling tiles, furniture, pictures, lights, mirrors, ceiling fans, and other items. ShakeOut drills inform people at school, work and home how to prepare for and survive the next damaging earthquake. Take Cover under a sturdy table or desk if possible and protect your head and neck;.
Arizona is earthquake country. Earthquake videos from Arizona Geological Survey. Arizona earthquakes, , a video time line. Arizona earthquakes numbers saw a large increase in The Arizona Geological Survey has just released a new, well-illustrated page book that can be downloaded for free 8Mb : Arizona is earthquake country. The book is intended as a guide on how to prepare for and minimize damage from the ground shaking that accompanies earthquakes. It also explains the geology of earthquakes and why they occur.
Young, active faults exist in and around Arizona. The northern Arizona Seismic Belt, which bisects Coconino County, hosts the greatest concentration of active faults in the state and is the most seismically active region in Arizona.
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Some faults, such as the Lake Mary Fault just south of Flagstaff, are capable of large magnitude earthquakes, up to magnitude 7. Yavapai, Mohave, Yuma, Pima, Cochise, Graham, and Greenlee County all host faults capable of delivering moderate to large seismic events, too. The booklet provides a primer on the nature and geology of earthquakes in Arizona, describes six prominent faults, and revisits three major historic earthquakes that impacted the state.
Instructions on how to use the U. Sections on monitoring earthquakes, earthquake resources — including online resources, and a glossary, round out the text. Scheduled for a. To date, more than 13, have enrolled in ShakeOut. Down-to-Earth 21 , 44p. Links to additional resources are given at the end of the book. For instance, for teachers in middle and high school, there is a link for earth science lesson plans and activities.
There are also several links to earthquake websites maintained by government and universities. Most earthquakes in Arizona are low magnitude and go unnoticed. The Arizona Geological Survey has several videos featuring earthquakes in and near Arizona. The newest is a time-lapse animation of the Brawley earthquake swarm that occurred on , August, Brawley is in southern California, just south of the Salton Sea.
That link also contains several other earthquake-related videos 4 to 6 minutes long so scroll down the page and you will see:. Time-lapse video animation of earthquakes in and around Arizona from to The apparent increase in seismic events in the latter part of the 20th century and early 21st century stems from improved seismic monitoring. It is interesting to see where the most earthquakes occur. The Lake Mary Fault, located immediately south of Flagstaff, Arizona, represents the greatest earthquake hazard to the more than 70, people of Flagstaff and environs.
This is an active fault area with a moderate recurrence rate on the order of tens of thousands of years. It is capable of yielding earthquakes in the range of magnitude 6 to 6. Arizona has earthquakes. And Lisa deconstructs one of the broadband seismic stations that form the backbone of the system. On 3 May , a magnitude 7. The earthquake killed dozens of people and damaged or destroyed several hundred structures.
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A similar event today would disturb and disrupt population centers in northern Sonora and southeastern Arizona and New Mexico. For more information on the earthquake, see my post: The Great Arizona-Sonora Earthquake of It follows the history of our understanding of natural phenomena, such as eclipses, from religious superstition to a physical explanation. Hawking believes our universe started with a big bang, it sprang from nothing. Before the big bang there was nothing, including no time and no cause and effect.
For Hawking, there is no God, no heaven, no afterlife. They discuss the concept of multiple universes, and conclude that science can neither prove nor disprove the existence of a creator. This program, narrated by actress Michelle Rodriguez, features scientists and military strategists, first discussing the probabilities that some intelligent alien species exist, then speculating on how the invaders would go about getting rid of humans. If these people were the aliens, they would first disable our communications and other electronics with an electro-magnetic pulse EMP , then kill many people in coastal areas by causing very large tsunamis.
They would finish us off with biological warfare. This program, narrated by Martin Sheen, is about the geology and natural resources of North America. It discusses plate tectonics, mountain building and how some of our large deposits of gold, oil, coal,and iron formed. And they got the geology right. The title of this program, narrated by Samuel L. Jackson, is a bit of hype, they destroy just North America, not the world. The program speculates on five types of natural disasters. Basically a mega-storm with very strong hurricane-force winds, lasts about a month and dumps 10 feet of water on California, causing flooding and land slides.
This kind of storm is purely speculative. See an explanation from the U.
- On shaky ground : the New Madrid earthquakes of (eBook, ) [idekineqyxen.ga].
- Sit Still And Listen.
- Quest of Eight part six: Loss of Hope;
Geologic Survey here. The program explains the consequences of a really big strike.
Apropos of trembling earth: Earthquake books?
The program claims that children today have a 1 in 20 chance of witnessing a really big strike. They fail to mention how they came up with that number. This program recounts the earthquakes that occurred between December and February, , all with strengths estimated to be between 7. These earthquakes are the strongest to hit the eastern U. The program goes on to speculate what could happen if an even bigger one hits. The program puts the odds of this happening within 50 years at 1 in Odds of happening 1 in 1,, same caveat.
I wrote about this one last year see The Yellowstone Super Volcano.