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Fukushima Lesson: Prepare for Unanticipated Nuclear Accidents

By Guest PostMarch 12, 2012Environmentalexandra navrotsky, davis, decontamination, earthquake, edward h kraus, electricity, Environment, fission, fukushima, fukushima daiichi, fukushima reactor, human health, hydrogen gas, Japan, japanese government, knowledge, magnitude, nuclear fuels, nuclear power plant, nuclear waste, peter burns, radiation, radioactive fallout, rehabilitation, rodney ewing, seawater, tepco, tsunami, university of california, university of michigan, university of notre dame, uranium dioxide, zirconium alloy

ANN ARBOR, Mich.— A year after the crisis at Japan’s Fukushima Daiichi nuclear power plant, scientists and engineers remain largely in the dark when it comes to fundamental knowledge about how nuclear fuels behave under extreme conditions, according to a University of Michigan nuclear waste expert and his colleagues.

In a review article in this week’s edition of the journal Science, U-M’s Rodney Ewing and two colleagues call for an ambitious, long-term national research program to study how nuclear fuels behave under the extreme conditions present during core-melt events like those that occurred at Fukushima following the March 11, 2011, magnitude 9.0 earthquake and tsunami. (more…)

3-D Laser Map Shows Earthquake Zone Before and After

By Guest PostFebruary 10, 2012Science2010 mexicali earthquake, 3d post earthquake image, agricultural fields, arizona state university, austin elliott, borrego fault, China, colorado river, colorado river delta, crust, data, davis, desert floor, earth science, earthquake, earthquake zone, earthscope, fault, fault behavior, fault rupture, fault surface ruptures, floodplain, geologist, greg anderson, indiviso fault, jing liu zeng, john fletcher, ken hudnut, laser pulses, lidar, light detection and ranging, magnitude, mexicali, Mexico, michael oskin, multi fault earthquake, national science foundation, ncalm, off fault deformation, orlando teran, pescadores fault, peter gold, post earthquake topography, pre earthquake, ramon arrowsmith, ridge, rock sample, san andreas, scarp, seismic hazard, seismic wave, united states, university of california

*Geologists learn how earthquakes change the landscape — down to a few inches*

Geologists have a new tool to study how earthquakes change the landscape–down to a few inches. It’s giving scientists insights into how earthquake faults behave.

In this week’s issue of the journal Science, a team of scientists from the United States, Mexico and China reports the most comprehensive before-and-after picture yet of an earthquake zone, using data from the magnitude 7.2 event that struck near Mexicali, Mexico, in April 2010. (more…)

Some Earthquakes Expected Along Rio Grande Rift in Colorado And New Mexico, New Study Says

By Guest PostJanuary 15, 2012Environmentactive, anne sheehan, anthony lowry, colorado plateau, earth, earthquake hazards, earthquakes, fault bounded basins, fort collins, frederick blume, garden city, geologically alive, geologists, global positioning system, gps, magnitude, mark murray, Mexico, molten rock, nanostrain, new mexico tech, rates of deformation, rio grande rift, rise of magma, spreading motion, steven nerem, surface coloradom rocky mountains, unavco, university of colorado boulder, university of new mexico, western great plains

The Rio Grande Rift, a thinning and stretching of Earth’s surface that extends from Colorado’s central Rocky Mountains to Mexico, is not dead but geologically alive and active, according to a new study involving scientists from the University of Colorado Boulder’s Cooperative Institute for Research in Environmental Sciences.

“We don’t expect to see a lot of earthquakes, or big ones, but we will have some earthquakes,” said CU-Boulder geological sciences Professor Anne Sheehan, also a fellow at CIRES. The study also involved collaborators from the University of New Mexico, New Mexico Tech, Utah State University and the Boulder-headquartered UNAVCO. The Rio Grande Rift follows the path of the Rio Grande River from central Colorado roughly to El Paso before turning southeast toward the Gulf of Mexico. (more…)

Japan Earthquake Appears to Increase Quake Risk Elsewhere in the Country

By Guest PostMay 26, 2011Environmentaftershocks, boso, coulomb stress triggering, earthquake, geological evidence, honshu island, izu islands, Japan, japan sea, jian lin, kyoto university, magnitude, mainshocks, microearthquakes, mount, nagano, normal faults, ross s stein, sanriku hokobu, sendai, stress, toda, tohoku earthquake, tohoku mainshock, tokyo area, tsunami, usgs, whoi, woods hole oceanographic institution

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 build up 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) have identified several areas at risk from the quake, Japan’s largest ever, which already has triggered a large number of aftershocks. (more…)

Tag Archives: magnitude

Fukushima Lesson: Prepare for Unanticipated Nuclear Accidents

3-D Laser Map Shows Earthquake Zone Before and After

Some Earthquakes Expected Along Rio Grande Rift in Colorado And New Mexico, New Study Says

Japan Earthquake Appears to Increase Quake Risk Elsewhere in the Country