http://www.ashdodsurf.com/earthquake-magnitude/
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earthquake magnitude
How is an earthquake's magnitude calculated?
I know that scientists use a Richter scale, but do they only use one? Are there other factors they use to gauge the strength of an earthquake?
There are other scales but the Richter scale is used almost exclusively. Read this article at Wikipedia for more information, http://en.wikipedia.org/wiki/Richter_scale
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View of Port-au-prince, Haiti, after a Magnitude 7 Earthquake Hit the Country. - 24"W x 16"H - Peel and Stick Wall Decal by Wallmonkeys
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DescriptionWallMonkeys wall graphics are printed on the highest quality re-positionable, self-adhesive fabric paper. Each order is printed in-house and on-demand. WallMonkeys uses premium materials & state-of-the-art production technologies... |
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La Grande Vague Nucléaire - 24"W x 16"H - Peel and Stick Wall Decal by Wallmonkeys
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DescriptionWallMonkeys wall graphics are printed on the highest quality re-positionable, self-adhesive fabric paper. Each order is printed in-house and on-demand. WallMonkeys uses premium materials & state-of-the-art production technologies... |
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10.5
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L.A.'s Killer Quake
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The Quake
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Magnitude 7.1 & 6.3
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DescriptionEarly on the morning of 4th September 2010, a series of seismic events began to unfold in Christchurch, New Zealand. They would eventually take 182 lives and directly affect hundreds of thousands of men, women and children... |
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Prayer from Japan: A 10 Day Diary of the Magnitude 9.0 Earthquake
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DescriptionThis book is a 10 day documentary essay written in the true words from a woman working and living an ordinary life in Tokyo, 120 miles away from the epicenter of the earthquake. There was a massive earthquake in Japan on March 11th, 2011... |
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Magnitude 8: Earthquakes and Life Along the San Andreas Fault
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Description"The tectonic history of any one part of the earth, like the life of a soldier, consists of long periods of boredom and short periods of terror." With this quotation from geologist Derek Ager, Pulitzer Prize-winning environmental journalist Philip Fradkin, "a literary geologist with a notebook in one hand and a hammer in the other," begins his trip along the San Andreas Fault... |
7.0 Magnitude Earthquake hits Haiti --Tsunami Watch Posted--January 12th, 2010
Why do we measure an earthquake's magnitude?
I'm doing a Science paper and I came across a puzzling question to me. Why DO scientists measure an earthquake's magnitude? D: Thanks.
To monitor the seismic strength,force released ,activity, to calculate how much remaining stress may be there and when the next earthqukae may struck at that place and its magnitudes can be approximately decided & to mark the falt lines.
6 Comments
The Moment Magnitude Scale was developed in the 1970s to succeed the 1930s-era Richter magnitude scale.
The goal of the Richter scale was to quantify medium-sized earthquakes between magnitude 3.0 and 7.0 in Southern California. This scale was based on the responses of seismographs and their distance from the epicenter. Because of this, there is an upper limit on the highest measurable magnitude and all large earthquakes will have a Local Magnitude of around 7. The Local Magnitude's estimate of earthquake size is also unreliable for measurements taken at a distance of more than about 350 miles from the earthquake's epicenter.
The Moment Magnitude (Mw) scale was introduced in 1979 by Caltech seismologists Thomas C. Hanks and Hiroo Kanamori to address these shortcomings while maintaining consistency.
See the links below.
The Moment Magnitude Scale was developed in the 1970s to succeed the 1930s-era Richter magnitude scale.
The goal of the Richter scale was to quantify medium-sized earthquakes between magnitude 3.0 and 7.0 in Southern California. This scale was based on the responses of seismographs and their distance from the epicenter. Because of this, there is an upper limit on the highest measurable magnitude and all large earthquakes will have a Local Magnitude of around 7. The Local Magnitude's estimate of earthquake size is also unreliable for measurements taken at a distance of more than about 350 miles from the earthquake's epicenter.
The Moment Magnitude (Mw) scale was introduced in 1979 by Caltech seismologists Thomas C. Hanks and Hiroo Kanamori to address these shortcomings while maintaining consistency.
See the links below.
6.1-magnitude quake hits Kepulauan Barat Daya, Indonesia — USGS: An earthquake measuring 6.1 on the Richter scale…
outdated earthquake chart is outdated – news say that it was a 5.1 magnitude earthquake not bad.my computer…
You shouldn't be worried the earthquake was a 4.4 and earthquakes in Southern California are no higher than 5.2 at the latest
福岡沖地震の日か