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Latest Seismology Stories

3D Computer Models Used To Solve Age-old Geologic Riddle
2014-03-26 12:15:54

[ Watch The Video: The Dynamics of Continental Accretion ] Robert Perkins, University of Southern California New study provides explanation for long-debated origin of bow-shaped mountain belts that form along the edges of colliding tectonic plates An international team of scientists that included USC's Meghan Miller used computer modeling to reveal, for the first time, how giant swirls form during the collision of tectonic plates – with subduction zones stuttering and recovering...

Tsunami Debris Study Conducted By Researchers
2014-03-25 05:06:48

[ Watch The Video: Engineers Recreate Tsunami Debris Impacts to Measure Their Force ] redOrbit Staff & Wire Reports - Your Universe Online While experts have long known that the debris caused by a tsunami can often cause as much damage as the actual wave itself, engineers have for the first time managed to design and conduct a series of large-scale simulations in order to determine the actual impact of these destroyed objects. With assistance from the National Science Foundation...

earthquake
2014-03-05 04:54:55

Lee Rannals for redOrbit.com - Your Universe Online A new study published in the journal Science reveals new information about the forces behind earthquakes. Geoscientists from the University of California, Los Angeles used a technique known as seismic tomography to study the structure of the Pacific Plate. This technique helped the team determine the plate’s thickness and image the interior of the plate and the underlying mantle, which they were able to relate to the direction of...

2014-02-21 23:04:50

Geometrics Inc. recently sold a new P-Cable ultra high-resolution 3D seismic streamer system to NCS Subsea for it's SAFE-BAND venture with Geotrace and Spec Partners. The purpose of the multi-client project is to obtain detailed data regarding safety-related geohazards in the Gulf of Mexico. San Jose, CA (PRWEB) February 21, 2014 Geometrics, Inc., a provider of geophysical data acquisition equipment, today announced that NCS SubSea, a provider of marine navigation and geoscience...

2014-02-13 23:25:31

The Life, Earth & Health Sciences Magazine EurekaMag.com has published 5,685 new articles on tectonic evolution. As a comprehensive publisher of geographic and geological articles, EurekaMag.com coverage includes studies on the gradual development of the structure of the earth's crust and the large-scale processes that take place within it. Mannheim, Germany (PRWEB) February 13, 2014 EurekaMag.com has newly published 5,685 new articles on tectonic evolution. While the site's...

2014-02-13 12:21:43

LONDON, February 13, 2014 /PRNewswire/ -- OptaSense, the global leader in Distributed Acoustic Sensing (DAS), has contracted with Petroleum Development Oman (PDO) to provide the industry's first multi-well 4D DAS vertical seismic profiling (VSP) system. OptaSense will deploy its industry proven DAS fibre-optic technology to monitor and map the performance of up to 12 steam-injected oil wells in a brownfield development at South Oman Salt Basin. The service contract for...

2014-02-03 12:21:57

LONDON, Feb. 3, 2014 /PRNewswire/ -- Reportbuyer.com just published a new market research report: The Marine Seismic Equipment and Acquisition Markets 2013-2023: Offshore Seismic Survey Contracts for Oil & Gas E&P; 2D, 3D & 4C Vessels & Equipment Report Details Spending on marine seismic equipment and acquisition will enjoy positive growth over the next five years. The same will be true in the longer term. The cautiousness of the industry, new technological...

2014-01-28 23:00:27

Latest ETV video features earthquake-resistant building, which literally rocks. San Francisco, CA (PRWEB) January 28, 2014 Sitting virtually astride California's infamous San Andreas Fault – the tectonic boundary between two massive geologic plates, the North American and the Pacific – San Francisco is no stranger to earthquakes. The City by The Bay and its surrounding communities were struck twice during the last century. The first one, in 1906, nearly destroyed the city...

Oceans Earths Mantle
2014-01-27 13:52:44

Lee Rannals for redOrbit.com - Your Universe Online University of Liverpool scientists believe that up to three and a half times the water of all the Earth’s oceans could be being transported beneath our feet. Seismologists reported in the journal Geology that they found deep sea fault zones could transport much larger amounts of water from Earth’s oceans to the upper mantle than previously thought. The team analyzed earthquakes that occurred more than 60 miles below the Earth’s...

Los Angeles Earthquake Risks Studied Using 'Virtual Earthquake' Technique
2014-01-24 04:52:49

[ Watch the Video: Forecasting Los Angeles Earthquakes ] redOrbit Staff & Wire Reports - Your Universe Online A new technique developed by scientists at California’s Stanford University has confirmed that the Los Angeles would experience stronger-than-anticipated ground movement should major seismic activity occur to the city’s south, according to research published in the latest edition of Science. The method used weak vibrations generated by the Earth’s oceans to produce...


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
jument
  • A beast of burden; also, a beast in general.
'Jument' ultimately comes from the Latin 'jugum,' yoke.
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