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Latest Seismology Stories

North America Rocked By Two Major Earthquakes And Several Small Ones
2013-09-04 15:02:31

What started as a few small temblors that shook up Texas residents on Monday turned into an all-out rumble as three major earthquakes rocked parts of North America and Japan into Tuesday evening.

Acoustic Wave Tsunami Warning System
2013-08-29 13:34:12

While the waves from a tsunami can be extremely destructive, acoustic waves could help warn of the impending danger.

Pamir Tien Shan Earthquakes And Tectonics
2013-08-27 14:07:16

Real time observation of shear waves on the Earth's surface, first direct observation of subducting continental crust during the collision of two continents

Slow Earthquakes May Predict Larger Events
2013-08-16 06:37:57

Monitoring slow earthquakes may provide a basis for reliable prediction in areas where slow quakes trigger normal earthquakes, according to Penn State geoscientists.

Humans Causing Seismic Activity
2013-07-12 08:57:39

Two studies published in the journal Science have both found human geologic activities could be causing nearby seismic activity.

2013-07-10 15:17:01

The U.S. Geological Survey (USGS) and other scientific institutions are using social media and crowdsourcing to learn more about earthquakes.

Airplane Scans New Madrid For Geological Activity
2013-07-10 09:36:18

Folks living near the New Madrid seismic zone should expect to see a low-flying, red-and-white Cessna today. Do not be alarmed, U.S. Geological Survey officials announced.


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
pawl
  • A pivoted catch designed to fall into a notch on a ratchet wheel so as to allow movement in only one direction (e.g. on a windlass or in a clock mechanism), or alternatively to move the wheel in one direction.
The word 'pawl' probably comes from a Latin word meaning 'stake'.
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