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Latest Seismology Stories

science-082311-007UPDATE
2011-08-23 19:03:28

  Virginia was rocked by a 5.9 magnitude earthquake on Tuesday that was felt all the way into New York City and beyond. The U.S. Geological Survey (USGS) said that the 5.9-magnitude earthquake's epicenter was in Mineral, Virginia, about 100 miles away from Washington D.C. Buildings throughout Washington and New York City were evacuated, including the Pentagon. CNN reported that there is standing water from a pipe broken at the Pentagon as a result of the earthquake. The...

2011-08-11 07:40:00

DDH 11 CBN 108: 84.77 m @ 0.71 g/t AuDDH 11 CBN 112: 71.50 m @ 0.51 g/t AuDDH 11 CBN 116: 94.80 m @ 0.53 g/t Au TSX: GGA  VANCOUVER, Aug. 11, 2011 /PRNewswire/ - Goldgroup Mining Inc. ("Goldgroup" or the "Company") is pleased to announce that additional diamond drill holes at its Caballo Blanco gold project in Veracruz, Mexico have yielded significant gold intercepts, extending the La Paila oxide gold zone to the southwest. All the drill holes reported below (see Tables 1...

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2011-08-08 14:07:02

MIT researchers report that they have reconstructed Baja California's 2010 "Easter Earthquakes." The earthquake that shook Baja California took placed on April 4, 2010, sending tremors throughout a region 40 miles south of the U.S. - Mexico border. The months after the 7.2-magnitude earthquake triggered aftershocks that shook Los Angeles. "The southern San Andreas Fault has not had a major earthquake on it since the 1600s," Thomas Herring, professor of geophysics in the Department of Earth,...

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2011-07-19 09:30:41

Seismic response Japan's March 11 Tohoku Earthquake is among the strongest ever recorded, and because it struck one of the world's most heavily instrumented seismic zones, this natural disaster is providing scientists with a treasure trove of data on rare magnitude 9 earthquakes. Among the new information is what is believed to be the first study of how a shock this powerful affects the rock and soil beneath the surface. Analyzing data from multiple measurement stations, scientists at the...

2011-07-15 19:41:00

SCOTTSDALE, Ariz., July 15, 2011 /PRNewswire/ -- Digitexx Data Systems, Inc. has launched REFLEXX Smart System for Buildings, a new damage detection and performance evaluation reporting system that provides essential structural health data in less than 15 minutes. REFLEXX is a turnkey solution that combines real-time data with sophisticated structural algorithms based on generally accepted engineering methodologies such as FEMA-356, HAZUS-MH, ASCE-41 and ATC-58 to provide detailed,...

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2011-06-28 07:25:33

Study finds that faults beneath the Salton Sea ruptured during Colorado River floods and may have triggered large earthquakes on the southern San Andreas Fault Southern California's Salton Sea, once a large natural lake fed by the Colorado River, may play an important role in the earthquake cycle of the southern San Andreas Fault and may have triggered large earthquakes in the past. Researchers at Scripps Institution of Oceanography, UC San Diego, the U.S. Geological Survey (USGS) and the...


Latest Seismology Reference Libraries

Seismology
2014-01-12 00:00:00

Seismology is the scientific study of earthquakes and the spread of elastic waves through the Earth or through other planet-like bodies. The field includes studies of earthquake effects, such as tsunamis in addition to diverse seismic sources such as tectonic, volcanic, oceanic, atmospheric, and artificial processes. A related field that utilizes geology to infer information regarding past earthquakes is paleoseismology. A recording of earth motion as a function of time is a seismogram. A...

0_5badd37024d78e3386e67ababbfe35a0
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...

0_2d32b95d634235dd48b1f1b3e5949a2e
2010-10-07 16:05:32

The Seismometer is an instrument designed to measure the motions of the ground. This includes seismic waves generated by earthquakes, nuclear explosions, and other seismic sources. Records of these activities allow seismologists to map the interior of the Earth, and locate and measure the size of the different sources. There are also seismographs, which is sometimes used in place of the word seismometer. However, a seismograph is the older instrument in which the measuring and recording...

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Word of the Day
mallemaroking
  • Nautical, the visiting and carousing of sailors in the Greenland ships.
This word is apparently from a confusion of two similar Dutch words: 'mallemerok,' a foolish woman, and 'mallemok,' a name for some persons among the crew of a whaling vessel.