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Latest Seismology Stories

2014-04-22 23:12:44

WorkSafe Technologies of Northern California suggests that the recent March earthquakes are a warning to be prepared. Los Gatos, CA (PRWEB) April 22, 2014 As spring takes root and 2014 takes off running, WorkSafe Technologies of Northern California looks back at the events that shook California in the month of March. According to the USGS over 200 Earthquakes shook California in March, 2014. WorkSafe takes this as a sign of things to come. Among the average temblors, two significant March...

2014-04-18 16:21:19

Earthquake Models Help Identify Potentially Impacted Areas so Resiliency Plans, Resources and Materials Can Be Focused on Where They Will Be Needed Most SAN FRANCISCO, April 18, 2014 /PRNewswire/ -- Serving an active earthquake region, advanced preparation for natural disasters is a top priority for Pacific Gas and Electric Company (PG&E) to help ensure safe and reliable operations. During Earthquake Preparedness Month in April, and on the anniversary of the Great 1906 San Francisco...

Earth core structure shutterstock_179800859
2014-04-05 06:41:23

April Flowers for redOrbit.com - Your Universe Online The contours of the Earth's crust are influenced by the high temperatures deep within the Earth's mantle, according to a new study published in Science. A team of researchers, led by Brown University, demonstrated that those temperature differences control the elevation and volcanic activity along mid-ocean ridges, the colossal mountain ranges that line the ocean floor. Forming at the boundaries of tectonic plates, mid-ocean ridges...

2014-04-01 23:32:56

March, 10 2014, 6.9 earthquake off coast of Ferndale, Ca is just one day removed from anniversary of 2011 Tohoku, Japan earthquake. Los Gatos, CA (PRWEB) March 31, 2014 On March 11, 2011 Japan was rocked by a 9.0 earthquake. WorkSafe Technologies of Northern California remembers this day well. Not only because of the catastrophic destruction caused by the mega quake, but the 30,000 catastrophes that were avoided with WorkSafe's help. Since the Fall of 2000, WorkSafe has been helping...

3-D Look At Los Angeles Area Quake Provided By NASA Model
2014-04-01 08:00:46

Alan Buis, NASA's Jet Propulsion Laboratory On March 28, residents of Greater Los Angeles experienced the largest earthquake to strike the region since 2008. The magnitude 5.1 quake was centered near La Habra in northwestern Orange County about 21 miles (33 kilometers) east-southeast of Los Angeles, and was widely felt throughout Southern California. There have been hundreds of aftershocks, including one of magnitude 4.1. Scientists at NASA’s Jet Propulsion Laboratory, Pasadena,...

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...


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
siliqua
  • A Roman unit of weight, 1⁄1728 of a pound.
  • A weight of four grains used in weighing gold and precious stones; a carat.
  • In anatomy, a formation suggesting a husk or pod.
  • The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
  • A coin of base silver of the Gothic and Lombard kings of Italy.
'Siliqua' comes from a Latin word meaning 'a pod.'
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