Why are earthquakes happening with greater frequency and magnitude? Chapman's alternating crustal displacement theory


Shaun's Blog
These are the last 5 entries on Shaun's Blog. click on 'read more' to view an entry; Click on "Shaun's Blog" above to see all blog entries
The Michael Jackson Effect. . .

Why do the great musical artists have to self implode and end up killing themselves with drugs or
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What is Centrifugal Force - An Explanation

A force which impels a thing, or parts of a thing, outward from a center of rotation. The express
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A combined Mathematical and Geological expression of Crustal Displacement

Crustal Displacement can be expressed mathematically as follows:
A sphere of known dimension
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Indicators of crustal displacement dates

During the last glacial epoch in the Pleistocene period there were several crustal displacements,
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Greenpeace, the World Wildlife Fund, Al Gore and Richard Branson. . .

The following are my little anecdotes on Greenpeace, the World Wildlife Fund, Al Gore and Richard
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Useful Links

National Geographic

Earthquakes 101

When the trempling stops, the disastar is only beginning.

Japan Earthquake Shortened Days,
Increased Earth's Wobble

The magnitude 9.0 earthquake that struck Japan lase Friday was powerfull enough to shorten Earth's day by 1.8 microseconds and throw an extra 6.7 inches (17 centimeters) into the planet's wobble, scientists say.

Earthquake Facts

Earthquake Facts

earthquakefacts.net

EarthquakeFacts.Net lists earthquake facts compiled over time and is still growing. This website also provides the history on famous earthquakes and pictures of the destruction left begind by these natural disasters

How Stuff Works

Earthquake Facts

Technically, an earthquake is a vibration that travels through the earth's crust.

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Shauns Blog

The Richter scale explained. . .

2011-09-08 at 11:40

If you’d like to know more about the way earthquakes are measured, read on: The Richter magnitude scale was developed in 1935 by Charles F. Richter of the California Institute of Technology is a mathematical device to compare the size of earthquakes. The magnitude of an earthquake is defined from the logarithm of the amplitude of waves recorded by seismographs and the epicenter of the earthquakes. On the Richter scale, magnitude is expressed in whole numbers and decimal fractions. For example, a magnitude 5.3 might be computed for a moderate earthquake, and a strong earthquake might be rated as magnitude 6.3. Because of the logarithmic basis of the scale, each whole number increase in magnitude represents a tenfold increase in measured amplitude; as an estimate of energy, each whole number step in the magnitude scale corresponds to the release of about 31 times more energy than the amount associated with the preceding whole number value.

Earthquakes with a magnitude of about 2.0 or less are usually called micro-earthquakes; they are not commonly felt by people and are generally recorded only on local seismographs. Events with magnitudes of about 4.5 or greater – there are several thousand such shocks annually – are strong enough to be recorded by sensitive seismographs all over the world. Great earthquakes, such as the 1964 Good Friday quake in Alaska, have magnitudes of 8.0 or higher. On average, one earthquake of such size occurs somewhere in the world each year. The Richter scale has no upper limit. Recently, another scale called the ‘moment magnitude scale’ has been devised for a more precise study of great earthquakes. (Courtesy of the USGS)