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Latest Seismology Stories

GPS Monitoring System For Big US Earthquakes To Undergo Testing
2012-04-25 04:36:04

The space-based technology that lets GPS-equipped motorists constantly update their precise location will undergo a major test of its ability to rapidly pinpoint the location and magnitude of strong earthquakes across the western United States. Results from the new Real-time Earthquake Analysis for Disaster (READI) Mitigation Network soon could be used to assist prompt disaster response and more accurate tsunami warnings. The new research network builds on decades of technology development...

2012-04-24 10:20:14

WASHINGTON, April 24, 2012 /PRNewswire-USNewswire/ -- The space-based technology that lets GPS-equipped motorists constantly update their precise location will undergo a major test of its ability to rapidly pinpoint the location and magnitude of strong earthquakes across the western United States. Results from the new Real-time Earthquake Analysis for Disaster (READI) Mitigation Network soon could be used to assist prompt disaster response and more accurate tsunami warnings. (Logo -...

Image 1 - Shaken, Stirred, Or Fracked
2012-05-17 12:00:12

D.M. Crumbliss MAY 17, 2012: A magnitude 4.3 earthquake shook Timpson, Texas this morning at about 3 AM. Timpson is located in Shelby County near the Louisiana border. Timpson had another 3.9 magnitude quake on May 10. The quake was felt 75 miles from the epicenter. This morning´s quake was the third largest in East Texas´ history. Timpson is the site of two wastewater injection wells that take toxic fracking water from Louisiana. The wells are very close to the epicenter...

Scientists Gather To Discuss Possibility Of San Diego Quakes
2012-04-13 06:55:48

Things could get shaky as scientists will gather in San Diego next week to present their latest seismological research at the annual conference of the Seismological Society of America (SSA). This year´s conference is expected to have record numbers, as well as a special public town hall meeting which will feature talks on the seismic dangers in San Diego as well as the threat of future earthquakes and tsunamis. As the city of San Diego sits on top of a fault system, there is a...

2012-04-12 21:03:25

From an elevator to hospital beds, shake-table test will subject a five-story building's inner workings to severe motions from record-setting earthquakes On April 17, 2012, an NSF-supported team of researchers will shake a full-size building outfitted with the myriad, inner workings of modern life. From elevators to ceiling tiles, hospital equipment to computer servers and wiring to pipes, numerous non-structural elements will be tested as a five-story concrete building shakes from the...

8.7 Earthquake Prompts Tsunami Warnings For Indian Ocean Coastlines
2012-04-11 05:33:00

Lawrence LeBlond for RedOrbit.com A tsunami warning has been issued for the entire Indian Ocean on Wednesday April 11 after a massive 8.7 magnitude earthquake off the coast of Indonesia at 2:38 p.m. local time (3:38 a.m. EST) sent residents around the region out of their homes and offices in fear. The US Geological Survey (USGS) said the temblor was centered 20 miles beneath the ocean floor, a little more than 300 miles from the provincial capital of Banda Aceh. The quake put emergency...

2012-04-10 06:23:17

VANCOUVER, British Columbia, April 10, 2012 /PRNewswire/ -- Urastar Gold Corp. (the "Company") (TSX-V:URS) (OTCQX: URNRF) reports assays from 13 reverse circulation drill holes resulting in significant new gold intersections on the La Juliana Deposit. The Juliana Gold project is located in the prolific Sierra Madre Gold Belt approximately 7 km from Alamos Gold's flagship Mulatos Gold Mine (see location map at www.Urastargold.com). New assay highlights include 20 ft grading 1.9 g/t Au from...

2012-03-30 07:56:15

A new study evaluates the seismic hazards for the entire Central America, including specific assessments for six capital cities, with the greatest hazard expected for Guatemala City and San Salvador, followed by Managua and San José, and notably lower in Tegucigalpa and Panamá City. The study, published in the April issue of the Bulletin of the Seismological Society of America (BSSA), included input from seismic hazard experts from Costa Rica, Guatemala,...

2012-03-28 06:22:00

AMSTERDAM, March 28, 2012 /PRNewswire/ -- Paradigm(TM) (www.pdgm.com) is pleased to announce its sponsorship of the Society of Exploration Geophysicists Distinguished Lecturer Series as a "sustaining investor". Paradigm is making a five-year commitment totaling $250,000 to support this SEG Foundation initiative. The Distinguished Lecture Program is designed to recognize outstanding individuals' contributions to the science or application of geophysics on an international level. The...

Scientists Study Deep Rocks Under Pacific Ocean
2012-03-23 07:12:56

Scientists interested in the construction of the rock layers immediately under the Earth´s crust, the lithosphere and asthenosphere, have new tools to help analyze these layers and further understand plate tectonics. The researchers have been using seismic waves to study the lithosphere-asthenosphere boundary, or LAB. This boundary is where the hot, convecting mantle asthenosphere and the overlying cold and rigid lithosphere meet. It has been found that seismic waves move faster...


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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