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Latest Seismic scales Stories

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2011-01-31 09:05:00

The region of Chile that was rocked by an earthquake last February could be at risk for a larger series of tremors, according to a new study published online by the journal Nature Geoscience on Sunday. The 2010 earthquake, which hit the Maule region of the South American country on February 27, "was not unexpected," according to researchers from Italy's National Institute of Geophysics and Vulcanology. "A clearly identified seismic gap existed in an area where tectonic loading has been...

2010-08-17 07:35:00

IMMENDINGEN, Germany and MANTECA, Calif., Aug. 17 /PRNewswire/ -- proDAD, a world-class developer of digital video effects plug-ins and image optimization technologies for professional video editors and broadcast professionals as well as aspiring pros today announced two new products based on the Mercalli V2 technology platform. Mercalli V2, first demonstrated at the 2010 NAB show in April, has been radically redesigned with new industry-leading 3D (X, Y, and Z camera axis) video...

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2008-05-26 14:50:37

Triggered tremors occur even on the opposite side of the EarthUntil 1992, when California's magnitude-7.3 Landers earthquake set off small jolts as far away as Yellowstone National Park, scientists did not believe large earthquakes sparked smaller tremors at distant locations. Now, a definitive study shows large earthquakes routinely trigger smaller jolts worldwide, including on the opposite side of the planet and in areas not prone to quakes."Previously it was thought seismically active...

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2004-12-27 01:22:39

(AP) -- Sunday's earthquake in Sumatra had a preliminary magnitude of 9.0, classifying it as a great quake and making it the strongest in 40 years. Earthquakes near the very top of the magnitude scale are difficult for scientists to measure. For one thing, they occur rarely - once a year or less - so researchers don't have many chances to analyze them. And, the tools that scientists use to measure movements in the planet's crust are becoming more sophisticated. So the way in which they...


Latest Seismic scales Reference Libraries

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2010-11-15 18:30:29

The Richter scale assigns a single number to quantify the amount of seismic energy released by an earthquake. The scale uses a base-10 logarithm by calculating the logarithm of the combined horizontal amplitude of the largest displacement from zero on a particular type of seismometer. A earthquake measuring 5.0 on the Richter scale has a shaking amplitude 10 times larger than one that measures 4.0. The moment magnitude, calibrated to give generally similar value for medium-sized...

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