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Latest Seismology Stories

Natural Disasters Were Rampant In 2013, Creating Widespread Chaos
2014-01-09 10:57:50

Gerard LeBlond for redOrbit.com - Your Universe Online Natural disasters were rampant in 2013, causing wide spread damage, chaos and impacting millions of lives. In a report from CBC News, German insurance company Munich Re, said that there were about 880 major natural disasters around the world in 2013. According to the insurance company 20,000 people’s lives came to a tragic end, which was more than double that of 2012, and with an estimated cost of $125 billion dollars in damage --...

Utah Copper Mine Landslide Triggered Earthquakes
2014-01-06 07:39:40

University of Utah Record-breaking slide would bury Central Park 66 feet deep Last year's gigantic landslide at a Utah copper mine probably was the biggest nonvolcanic slide in North America's modern history, and included two rock avalanches that happened 90 minutes apart and surprisingly triggered 16 small earthquakes, University of Utah scientists discovered. The landslide – which moved at an average of almost 70 mph and reached estimated speeds of at least 100 mph – left a...

Multi-Study Focuses On Link Between Lushan, Wenchuan Earthquakes
2014-01-03 09:30:34

April Flowers for redOrbit.com - Your Universe Online New research, published in Seismological Research Letters, suggests that the 32-mile segment of the fault northeast of the 2013 Lushan rupture is the place to watch for the next major earthquake in the region. Papers published in the special section of the journal suggest that the 2008 Wenchuan earthquake triggered the magnitude M6.6 Lushan quake. Huajian Yao, professor of geophysics at the University of Science and Technology of...

Subvertical Faults Can Create Electrical Light Shows During Earthquakes
2014-01-03 05:56:52

April Flowers for redOrbit.com - Your Universe Online A new study, published in Seismological Research Letters, reveals that rare earthquake lights are more likely to occur on or near rift environments. These environments are where subvertical faults allow stress-induced electrical currents to flow rapidly to the surface. Scholars have been intrigued by the luminous phenomena known as earthquake lights (EQL) since the earliest days of seismology. EQL appear before or during earthquakes,...

Runaway Earthquakes Helped By High Pressure Heating
2013-12-25 05:01:27

Brett Smith for redOrbit.com - Your Universe Online Almost one quarter of all earthquakes start in the lithosphere, a slice of the Earth about 31 miles below the surface. In a new study published by the journal Geophysical Research Letters, scientists revealed the discovery of a mechanism that helps deep rumblings in the lithosphere spread into larger quakes. Using seismic data from a region in Colombia known for its lithosphere-generated earthquakes, study researchers from MIT and...

One In Four Earthquakes Worldwide Come From Deep Within Earth
2013-12-12 08:16:04

April Flowers for redOrbit.com - Your Universe Online The long standing mystery of what drives a particular type of earthquake that occurs deep within the Earth and accounts for one in four quakes worldwide might have been solved by a team led by Stanford researchers. Their findings are published in an upcoming issue of Geophysical Research Letters. Originating farther inside the planet than shallow earthquakes, these temblors are known as intermediate-depth earthquakes. Shallow...

Japanese Earthquake And Tsunami
2013-12-06 04:37:35

[ Watch the Video: What Is At Fault For The 2011 Fukushima Earthquake And Tsunami? ] redOrbit Staff & Wire Reports - Your Universe Online The magnitude 9.0 Tohoku-Oki earthquake that occurred off the Japanese coast in March 2011, triggering a tsunami and ultimately resulting in more than 15,000 deaths, was the result of the largest fault slip ever recorded, according to a trio of studies published Thursday in the journal Science. According to Jane J. Lee of National Geographic,...

2013-11-20 08:21:56

HOUSTON, Nov. 20, 2013 /PRNewswire/ -- ION Geophysical Corporation (NYSE: IO) today announced that it has expanded its seismic data processing network through the opening of a new GX Technology (GXT) center in Oklahoma City and significantly upgraded the company's Houston high performance computing hub with its move to a new state-of-the-art facility that increases throughput capacity by 50%. These moves support ION's desire to satisfy increasing customer demand for proximity of...

Earthquake Prone Regions Could Benefit From Updated Warning System
2013-10-31 08:52:18

redOrbit Staff & Wire Reports - Your Universe Online Relocating some of the seismic stations in California and upgrading earthquake-detection technology could improve early warning systems throughout the state, according to new research appearing in the November edition of the the journal Seismological Research Letters. The effect would be particularly noticeable in regions that are poorly served by the current network, explained Serdar Kuyuk, assistant professor of civil...

Google Street View Tool Used To Record Earthquake Damage
2013-10-30 11:13:09

Seismological Society of America 2009 L'Aquila quake's destruction revealed through contrast of images A scientist from Cologne University has used Google's online street view scans to document the damage caused by the 2009 L'Aquila earthquake and suggests that the database would be a useful tool for surveying damage caused by future earthquakes. The findings are published in the November issue of the Seismological Research Letters. The magnitude 6.3 2009 L'Aquila earthquake in the...


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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