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Last updated on April 24, 2014 at 1:21 EDT

Latest Seismology Stories

2013-07-02 08:22:26

SALT LAKE CITY, July 2, 2013 /PRNewswire/ -- FX Energy, Inc. (NASDAQ: FXEN) provided an update on the status of its operations in Poland. Edge concession Tuchola seismic. The Company has started field acquisition on a 110 square kilometer 3D program in the Tuchola area of the Edge concession. The new 3D seismic is intended to delineate the extent of the structure and help quantify reserves in the accumulation discovered by the Tuchola-3K, well announced May 21, 2013. The Company...

2013-06-18 15:37:09

Is this where the expected Marmara earthquake will originate from? Earthquake researchers have now identified a 30 kilometers long and ten kilometers deep area along the North Anatolian fault zone just south of Istanbul that could be the starting point for a strong earthquake. The group of seismologists including Professor Marco Bohnhoff of the GFZ German Research Centre for Geosciences reported in the current online issue of the scientific journal Nature (Nature Communications, DOI:...

Earthquake Sounds Help Predict Tsunamis
2013-06-07 11:27:11

Brett Smith for redOrbit.com - Your Universe Online While seismologists have the ability to detect undersea earthquakes, they don´t know which ones will turn into tsunamis. Some ocean-based sensors are able to detect an approaching tsunami, but they can only provide a few minutes of advanced warning. According to a new report in The“¯Bulletin of the Seismological Society of America, two Stanford University researchers have identified key acoustic characteristics of the...

'Caldas Tear' Resolves Seismic Activity Beneath Colombia
2013-06-06 20:49:15

Seismological Society of America Colombia sits atop a complex geological area where three tectonic plates are interacting, producing seismicity patterns that have puzzled seismologists for years. Now seismologists have identified the "Caldas tear," which is a break in a slab that separates two subducting plates and accounts for curious features, including a "nest" of seismic activity beneath east-central Colombia and high grade mineral deposits on the surface. In a paper published in...

Slow Earthquakes Take Weeks To Occur
2013-05-21 05:00:17

Lee Rannals for redOrbit.com - Your Universe Online Researchers have been aware of slow earthquakes for only the past decade, but little has been understood about them. However, new tools may help explain what triggers these quakes. Scientists thought slow earthquakes were related to the type of rock in the fault, believing that clay minerals are important in slip behavior. A team writing in the journal Nature Geoscience performed laboratory experiments using natural samples taken where...

Arabian Sea Earthquake Risk Predictions Were Underestimated
2013-05-13 16:04:27

Lee Rannals for redOrbit.com — Your Universe Online Researchers writing in the journal Geophysical Research Letters say the western Indian Ocean earthquake and tsunami hazard potential is greater than scientists had originally predicted. Scientists from the University of Southampton say the risk from undersea earthquakes and tsunami beneath the Arabian Sea at the Makran subduction zone was underestimated. They said their findings highlight the need for further investigation of...

2013-05-07 16:22:53

CALGARY, Alberta, May 7, 2013 /PRNewswire/ -- ESG Solutions, an industry leader in microseismic technology and services, is pleased to announce the successful expansion of a near-surface seismic monitoring system in Western Canada. Initially installed in 2012 to monitor any potential larger magnitude induced seismicity during hydraulic fracturing operations, the system was recently expanded to provide greater monitoring range spanning multiple well pads. (Logo:...

2013-05-01 12:23:45

HOUSTON, May 1, 2013 /PRNewswire/ -- INOVA's G3i(TM) mega channel system sales have surpassed 100,000 channels since its introduction to the seismic industry just one year ago. Operators and oil and gas companies have quickly recognized the breadth and productivity benefits that the cable-based land recording system brings to their exploration initiatives. The highly flexible system has scaling functionality that meets operational requirements for a broad range of surveys, from low channel...

Crandall Canyon Mine Collapse Maybe Bigger Than 2008 Study Suggested
2013-04-21 21:36:21

University of Utah A new University of Utah study has identified hundreds of previously unrecognized small aftershocks that happened after Utah's deadly Crandall Canyon mine collapse in 2007. The aftershocks suggest the collapse was as big — and perhaps bigger — than shown in another study by the university in 2008. Mapping out the locations of the aftershocks "helps us better delineate the extent of the collapse at Crandall canyon. It's gotten bigger," says Tex Kubacki, a...

2013-04-19 19:21:48

News from the Seismological Society of America 2013 Annual Meeting The entire world becomes an aftershock zone after a massive magnitude (M) 7 or larger earthquake–but what hazard does this pose around the planet? Researchers are working to extend their earthquake risk estimates over a global scale, as they become better at forecasting the impact of aftershocks at a local and regional level. There is little doubt that surface waves from a large, M7 earthquake can distort fault...


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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