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2011-07-19 09:30:41

Seismic response Japan's March 11 Tohoku Earthquake is among the strongest ever recorded, and because it struck one of the world's most heavily instrumented seismic zones, this natural disaster is providing scientists with a treasure trove of data on rare magnitude 9 earthquakes. Among the new information is what is believed to be the first study of how a shock this powerful affects the rock and soil beneath the surface. Analyzing data from multiple measurement stations, scientists at the...

2011-07-15 19:41:00

SCOTTSDALE, Ariz., July 15, 2011 /PRNewswire/ -- Digitexx Data Systems, Inc. has launched REFLEXX Smart System for Buildings, a new damage detection and performance evaluation reporting system that provides essential structural health data in less than 15 minutes. REFLEXX is a turnkey solution that combines real-time data with sophisticated structural algorithms based on generally accepted engineering methodologies such as FEMA-356, HAZUS-MH, ASCE-41 and ATC-58 to provide detailed,...

2011-07-13 13:35:28

The extended Coulomb failure stress (ECFS) criteria and anisotropic porosity and permeability tensor at micro/meso/macro scale under ultra"℠high temperature and pressure (UTP) conditions were developed employing the flow driven pore"℠network crack (FDPNC) model under multiple temporal"“spatial scales and the hybrid hypersingular integral equation"℠lattice Boltzmann method (HHIE"℠LBM). The correlation of the Zipingpu reservoir and Longmenshan slip was then...

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2011-07-12 08:15:00

Professor Andreas Vött presents new results of geomorphological and geoarcheological investigations on the sedimentary burial of Olympia Olympia, site of the famous Temple of Zeus and original venue of the Olympic Games in ancient Greece, was presumably destroyed by repeated tsunamis that travelled considerable distances inland, and not by earthquake and river floods as has been assumed to date. Evidence in support of this new theory on the virtual disappearance of the ancient cult site...

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2011-06-30 09:15:29

Samples of rock, sediment from beneath the sea-floor help explain quakes like Japan's New samples of rock and sediment from the depths of the eastern Pacific Ocean may help explain the cause of large, destructive earthquakes similar to the Tohoku Earthquake that struck Japan in mid-March. Nearly 1,500 meters (almost one mile) of sediment cores collected from the ocean floor off the coast of Costa Rica reveal detailed records of some two million years of tectonic activity along a seismic plate...

eb31fa0026e96092b7577ac07511ea09
2011-06-28 07:25:33

Study finds that faults beneath the Salton Sea ruptured during Colorado River floods and may have triggered large earthquakes on the southern San Andreas Fault Southern California's Salton Sea, once a large natural lake fed by the Colorado River, may play an important role in the earthquake cycle of the southern San Andreas Fault and may have triggered large earthquakes in the past. Researchers at Scripps Institution of Oceanography, UC San Diego, the U.S. Geological Survey (USGS) and the...

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2011-06-13 07:30:00

A series of powerful aftershocks rocked the already quake-battered New Zealand city of Christchurch Monday, destroying one of the few remaining buildings downtown and throwing thousands of residents into darkness. The aftershocks come almost four months after a 6.3 magnitude temblor struck the city on February 22, and a 7.1 quake that struck in September of last year. That quake left the city in near ruin and killed as many as 181 people. Luckily, in Monday's madness, there were no reported...

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2011-06-05 10:41:50

An unusual signal detected by the seismic monitoring station at the Smithsonian Tropical Research Institute's research facility on Barro Colorado Island results from waves in Lake Gatun, the reservoir that forms the Panama Canal channel, scientists report. Understanding seismic background signals leads to improved earthquake and tsunami detection in the Caribbean region where 100 tsunamis have been reported in the past 500 years.As part of a $37.5 million U.S. presidential initiative to...

2011-05-28 00:00:49

A Kinship Circle Disaster Animal Response Team searches roads and homes in the Yamakiya District of Kawamata, the most recent part of Fukushima Prefecture under mandatory radiation evacuation. Thousands of animals are already trapped without food, water or care in Futuba District ghost towns closer to a nuclear plant damaged in Japan's 3/11/11 earthquake-tsunami. Kawamata, Fukushima Prefecture, Japan (PRWEB) May 27, 2011 A Kinship Circle Disaster Animal Response Team searches roads and...

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2011-05-26 14:00:00

Japan's recent magnitude 9.0 earthquake, which triggered a devastating tsunami, relieved stress along part of the quake fault but also has contributed to the buildup of stress in other areas, putting some of the country at risk for up to years of sizeable aftershocks and perhaps new main shocks, scientists say. After studying data from Japan's extensive seismic network, researchers from the Woods Hole Oceanographic Institution (WHOI), Kyoto University and the U.S. Geological Survey (USGS)...


Latest Earthquake Reference Libraries

Pacific Ring of Fire
2013-02-19 13:18:27

The Pacific Ring of Fire, or Ring of Fire for short, is an area where a large number of earthquakes and volcanic eruptions occur in the basin of the Pacific Ocean. In a 25,000 mile horseshoe shape, it’s associated with an almost continuous series of oceanic trenches, volcanic belts, volcanic arcs and/or plate movement. The Ring of Fire contains 452 volcanoes and is home to over 75 percent of the world’s active and dormant volcanoes. It’s sometimes called the circum-Pacific belt or the...

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...

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Word of the Day
glogg
  • Scandinavian punch made of claret and aquavit with spices and raisins and orange peel and sugar.
This word comes from the Swedish 'glogg,' which is an alteration of 'glodgat,' mulled (wine).
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