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Latest Seismology Stories

2014-08-28 23:18:01

Structural Engineers Association of California responds to American Canyon Earthquake Sacramento, CA (PRWEB) August 28, 2014 By Michael Cochran, SEAOC Board President, Reinhard Ludke, and Ken O’Dell As the Napa region works to recover from the strongest California earthquake in 20-plus years, the rest of the State should be on notice that Sunday’s 6.0M American Canyon earthquake did not let us off the hook. Instead, this and every other recent earthquake should be taken as a wakeup...

2014-08-24 16:20:25

Early damage reports from today's earthquake validate the case for simple preparations for families and small businesses to help prevent injury, property damage, and post-earthquake fires TALLAHASSEE, Fla., Aug. 24, 2014 /PRNewswire/ -- Citing today's 6.0 magnitude Northern California earthquake, the nonprofit Federal Alliance for Safe Homes (FLASH) urges residents in 42 USGS-identified earthquake states to take immediate action to prevent injuries, property damage, and post-earthquake...

2014-08-22 20:20:04

Observance of August 24 Pompeii Tragedy Sheds Light on California's Vulnerability LOS ANGELES, Aug. 22, 2014 /PRNewswire/ -- During a news conference held at the California Science Center, experts shared their perspectives on volcanoes and earthquakes in Southern California and the importance of being prepared. The event took place in Pompeii: The Exhibition, in a gallery that displays images of some of the world's active volcanoes. August 24 marks the anniversary of the Mt. Vesuvius...

New Insights Into Great Earthquake In Chile
2014-08-15 03:40:00

GFZ GeoForschungsZentrum Potsdam, Helmholtz Centre A long lasting foreshock series controlled the rupture process of this year's great earthquake near Iquique in northern Chile. The earthquake was heralded by a three quarter year long foreshock series of ever increasing magnitudes culminating in a Mw 6.7 event two weeks before the mainshock. The mainshock (magnitude 8.1) finally broke on April 1st a central piece out of the most important seismic gap along the South American subduction...

antarctic icequakes
2014-08-11 07:26:19

redOrbit Staff & Wire Reports - Your Universe Online A massive earthquake that affected the Maule region of Chile in February 2010 also unleashed a series of smaller seismic events known as “icequakes” nearly 3,000 to the south in Antarctica, a team of researchers report in a new Nature Geoscience study. The Chilean earthquake, which killed over 500 people and caused an estimated $30 billion in damages, is believed to be the cause of small tremors detected by sensors in West...

Earthquake Engineering Lab
2014-07-18 03:00:07

Mike Wolterbeek, University of Nevada, Reno A 70-foot-long, 52-ton concrete bridge survived a series of earthquakes in the first multiple-shake-table experiment in the University of Nevada, Reno's new Earthquake Engineering Lab, the newest addition to the world-renowned earthquake/seismic engineering facility. [ Watch the Video: 52-Ton Bridge Shakes Violently At University Of Nevada, Reno Earthquake Engineering Lab ] "It was a complete success. The bridge withstood the design...

Evidence Of Super-fast Deep Earthquake Discovered By Scripps Scientists
2014-07-14 08:49:39

University of California - San Diego Rare high-speed rupture off Russia provides clues about similar phenomena on shallow fault zones near Earth's surface As scientists learn more about earthquakes that rupture at fault zones near the planet's surface—and the mechanisms that trigger them—an even more intriguing earthquake mystery lies deeper in the planet. Scientists at Scripps Institution of Oceanography at UC San Diego have discovered the first evidence that deep earthquakes,...

2014-07-01 10:05:14

Seismological Society of America Natural earthquakes and nuclear explosions produce seismic waves that register on seismic monitoring networks around the globe, allowing the scientific community to pinpoint the location of the events. In order to distinguish seismic waves produced by a variety of activities – from traffic to mining to explosions – scientists study the seismic waves generated by as many types of events as possible. In August 2012, the emergence of a very large...

2014-07-01 08:24:23

HOUSTON, July 1, 2014 /PRNewswire/ -- Virtus Oil and Gas Corporation (OTCBB: VOIL) ("Virtus" or the "Company") today announced it has entered into an agreement with Seismic Exchange, Inc. (SEI) to purchase approximately 30,360 acres (47.438 miles(2)) of 2D seismic data, enabling the Company to initiate phase one of its exploration program. 2D Seismic Data Acquisition Virtus signed a Master License Agreement and a Seismic License Agreement with SEI for the acquisition of 2D seismic...

2014-06-16 23:11:56

Saddleback continues its alliance with INT by providing Attribute::Toolbox™ to all licensed users of INTViewer™. Houston, Texas (PRWEB) June 16, 2014 Saddleback Geosolutions LLC announced today that it has released its first installment of its innovative interactive seismic attribute package: Attribute::Workbench™, and inked a deal to deliver Attribute::Toolbox™, an interactive 24-seismic attribute package, to all licensed users of INT’s innovative data visualization...


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
grass-comber
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'