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Latest Seismology Stories

2011-03-16 02:00:00

CHATSWORTH, Calif., March 16, 2011 /PRNewswire/ -- On March 11, 2011 Japan experienced the largest earthquake ever in its history, a 9.0 magnitude off the coast of Honshu, Japan. Immediately following the earthquake, a major tsunami was triggered and it brought even more destruction and devastation to Japan. Now Japan is battling enormous challenges and a world community is coming together to assist them. Eric Holtzman is the President of Hosting 4 Less, a web hosting company in Southern...

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2011-03-15 07:36:22

Learning from history, TAU invention can improve earthquake prediction today Earthquakes are one of the world's biggest enigmas "” impossible to predict and able to wreak untold damage within seconds. Now, a new tool from Tel Aviv University may be able to learn from earthquakes of the ancient past to better predict earthquakes of the future. Prof. Shmuel Marco of Tel Aviv University's Department of Geophysics and Planetary Sciences in the Raymond and Beverly Sackler Faculty of Exact...

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2011-03-14 09:05:00

While Japan's 8.9-magnitude earthquake and accompanying tsunami represent a devastating natural disaster for the country's residents, scientists should also seize upon the massive temblor as an important learning tool for future quakes around the world, including the Pacific Northwest coast of the United States, according to experts from the Woods Hole Oceanographic Institution (WHOI). WHOI geophysicist Jeff McGuire said such lessons may be particularly germane to residents of Northern...

2011-03-12 00:00:28

Award-Winning Author and Expert on Earth's Inner Structure Explains Earthquakes and Tsunami in Layman's Terms New York, NY (PRWEB) March 11, 2011 Dr. Michael Wysession, a renowned authority on earthquake's seismic tomography, is available for media interviews as an expert commentator on the Japanese earthquake and tsunami. A co-author of Pearson's digital "Interactive Science" program for middle grades and more than 50 other scientific publications, Wysession was awarded the prestigious...

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2011-03-07 13:51:20

The Christchurch, New Zealand earthquake that took place on February 22 has been illustrated in new radar imagery. The magnitude 6.3 tremor killed over 160 people and shattered a city reeling from a previous seismic event in September. Data downloaded from the Japanese Alos spacecraft mapped the way the ground deformed during the most recent quake. It shows clearly that the focus of the tremor was right under the city's south-eastern suburbs. The type of image is known as a synthetic...

2011-02-25 15:15:54

By studying seismographs from the earthquake that hit Chile last February, earth scientists at the Georgia Institute of Technology have found a statistically significant increase of microearthquakes in central California in the first few hours after the main shock. The observation provides an additional support that seismic waves from distant earthquakes could also trigger seismic events on the other side of the earth. The results may be found online in the journal Geophysical Research...

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2011-02-25 11:13:28

A day after a powerful magnitude 6.3 earthquake rocked Christchurch, a city of 377,000 on New Zealand's South Island, on Feb. 22, 2011, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra spacecraft imaged the Christchurch region. The imaging was done at the request of the International Charter, Space and Major Disasters, which provides emergency satellite data to federal agencies in disaster-stricken regions. Two images are presented here....

2011-02-24 13:56:55

The terribly destructive earthquake that just hit Christchurch, New Zealand, was only a moderate 6.3 magnitude, but had certain characteristics that offer an important lesson to cities up and down the West Coast of North America that face similar risks, experts say. The New Zealand earthquake killed dozens "“ and some fear the death toll may rise to the hundreds "“ and was an aftershock of the much more powerful 7.1 magnitude earthquake that struck that nation last September near...

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2011-02-23 07:15:00

The official death toll resulting from Tuesday's a 6.3 magnitude earthquake in the New Zealand city of Christchurch has climbed to 75, but that number is expected to rise even more--especially now that police called off the search for survivors at a television office building, the Daily Mail reported Wednesday morning. The website of the British newspaper said that between 80 and 100 or more people are believed to have been in the Canterbury TV building, which was badly damaged by the tremors...

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2011-02-21 09:30:00

New research gives the first accurate estimate of how much faster the Earth's core is rotating compared to the rest of the planet. Previous research had shown that the Earth's core rotates faster than the rest of the planet. However, scientists from the University of Cambridge have discovered that earlier estimates of 1 degree every year were inaccurate and that the core is actually moving much slower than previously believed "“ approximately 1 degree every million years. Their findings...


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...

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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...

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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
out-herod
  • In the phrase to out-herod Herod, to be more violent than Herod (as represented in the old mystery plays); hence, to exceed in any excess of evil.
Herod refers to 'Herod the Great,' a Roman client king and 'a madman who murdered his own family and a great many rabbis.' According to the OED, the term is 'chiefly with allusion to Shakespeare's use' in Hamlet.
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