Granduncle Mark's Genealogy Parlor

A Big Earthquake is Coming!






A Big Earthquake is Coming!


    Most Hoosiers, and other residents of the American Midwest, don't think much about earthquakes. Afterall, all of the earthquakes we hear about are in California, Japan, Italy, or other far away places.

    Make no mistake -- some of the biggest and most devastating earthquakes in North American history were right here. And, by many accounts, big earthquakes are due again.

    The New Madrid fault, centered in the boothill of Missouri, generated earthquakes in 1811 and 1812 so extreme that it caused the mighty Mississippi river to flow backwards, and rang church bells as far away as Boston, Massachusetts and Washington, D.C. The larger quakes were even felt in New Hampshire, a full thousand miles from the center of the quake. That's one whopper of an earthquake, folks!

    Massive earthquakes from the New Madrid fault have occurred, on average, every 150 years. It's been 190 years since the last one. Do the math. While earthquakes are not very predictable yet, we're past the time when a devasting earthquake was predicted for this region.

    In a series of four earthquakes measuring over 8.0 on the Richter Scale, and aftershocks lasting for three months, homes, other buildings, and trees were swiftly destroyed. The first of these quakes occurred before dawn on the morning of December 16, 1811. The second of these massive quakes occurred just 6 hours later. In all, there were hundreds of quakes during this three month period of devastation.

    Lives were lost, although the population in 1811 and 1812 was tiny compared to today's population. Casualties of the next earthquake could be many thousands of lost lives, depending on where the earthquake is centered.

    Now, we may be offered some buffer here in south-central Indiana because we sit on beds of oolitic limestone. But, even that is limited security in the case of earthquakes having a Richter Scale score above 8.0.

    Although the largest New Madrid Fault earthquakes experienced during recorded history (the past 200 years) have had epicenters in Missouri, at least 6 major earthquakes had epicenters in southern Indiana during the past 1200 years. The largest of these was centered in the area that is now Vincennes and was many-times more powerful than the devastating Los Angeles earthquake of 1994.

    That a major earthquake is going to hit us is a fact. The only thing we don't know is when it will happen. It is statistically probable that it will be soon.


How to Prepare for an Earthquake


  • Keep handy a 3-day supply (per person) of durable food and bottled water. Replace these supplies every six months.

  • If your non-perishable emergency food supply includes can goods, be sure to keep a non-electric can opener with the can goods.

  • Keep handy a first aide kit and manual.

  • Keep other emergency supplies handy, such as cellular telephone, sturdy shoes, thick gloves, essential medicines, cash, flashlights, battery-operated radio, extra batteries, and a regularly-serviced fire extinguisher. (Broken gas lines, or downed electric lines, can results in fires!)

  • Know where your gas, electric and water shut-offs are, in case you need to turn them off after an earthquake. Know how to shut them off!

  • Consider fastening or securing furnishings that might fall on you during an earthquake, such as tall furniture. Be especially wary about putting heavy objects on shelves, or heavy photos on walls, above sleeping areas.

  • Consider having earthquake drills in your home, teaching family members to seek cover under, and hold on to, heavy furniture, such as dining tables, which would offer some protection if the ceiling falls.










Copyright 1996-2008, Mark Ellsworth Hickman, PhD
(Granduncle Mark)

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