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Latest Seismology Stories

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2011-03-24 11:29:23

A 6.8-magnitude earthquake struck Myanmar on Thursday night, shaking buildings as far away as Bangkok. According to the U.S. Geological Survey (USGS), 600,000 people could feel shaking anywhere from strong to violent.  It said that buildings in the area could be expected to have moderate to very heavy damage because buildings in the area are considered vulnerable. Buildings in Bangkok, which is located about 480 miles south of the epicenter, also felt the effects of the quake. The...

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2011-03-21 14:41:08

Geologists say the earthquake that rocked Japan on March 11 has altered the earth's surface and loaded more stress on a fault line much closer to Tokyo. Roger Musson of the British Geological Survey said that the structure of the tectonic plates and fault lines around the city makes it unlikely that Tokyo would be hit by a quake anywhere near the intensity of the 9.0-magnitude one that struck a few weeks ago. However, any trembler could be devastating given the 39 million people who live in...

2011-03-17 00:07:46

The earthquake disaster on March 11 - scientific evaluation The earthquake disaster on 11 March 2011 was an event of the century not only for Japan. With a magnitude of Mw = 8.9, it was one of the strongest earthquakes ever recorded worldwide. Particularly interesting is that here, two days before, a strong foreshock with a magnitude Mw = 7.2 took place almost exactly at the breaking point of the tsunami-earthquake. The geophysicist Joachim Saul from the GFZ German Research Centre for...

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....


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...

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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