Breaking News: Earthquakes

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A concrete material developed at the University of Michigan can heal itself when it cracks. No human intervention is necessary---just water and carbon dioxide.

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Researchers at the University of Michigan simulated an off-the-charts earthquake in a laboratory to test their new technique for bracing high-rise concrete buildings. Their technique passed the test, withstanding more movement than an earthquake would typically demand.

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Engineering researchers from UCSD and the University of Arizona have concluded three months of rigorous earthquake simulation tests on a half-scale three-story structure, and will now begin sifting through their results so they can be used in the future designs of buildings across the nation.

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In one corner of a huge civil engineering laboratory on campus, Dr. Ronaldo Luna watches a machine shake silt from the Mississippi River until it liquefies.

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Robert Olshansky, a professor of urban and regional planning at the University of Illinois, says yesterday's 5.4-magnitude earthquake that shook people up but caused relatively minor damage in Southern California should be considered a public service announcement for vigilance and preparedness.

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David Elton is a professor of civil engineering at Auburn University and an expert on seismicity and earthquate damage.

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Staff members from the Center for Community Earthquake Preparedness, housed in the University of Mississippi School of Engineering, are available to discuss earthquakes, disaster planning, damage mitigation techniques and other aspects of disaster preparedness.

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Northern Arizona University's Dr. David S. Brumbaugh, Director of the Arizona Earthquake Information Center, is available for comment about the earthquake in Los Angeles on Tuesday, July 29, 2008.

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The following faculty members from The George Washington University are available to comment on earthquakes, tsunamis, and other natural disasters.

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Aftershocks always occur, Elnashai says, and they may continue for a few days after such a relatively low-magnitude earthquake. Usually, with some exceptions, aftershocks are one magnitude unit below the main event.

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New calculations show that Utah's deadly Crandall Canyon mine collapse "“ which registered as a magnitude-3.9 earthquake "“ began near where miners were excavating coal and quickly grew to a 50-acre cave-in, University of Utah seismologists say in a report. They estimated the size of the collapse is about four times larger than was thought shortly after the time of the Aug. 6, 2007, disaster.

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Until 1992, when California's magnitude-7.3 Landers earthquake set off small jolts as far away as Yellowstone National Park, scientists did not believe large earthquakes sparked smaller tremors at distant locations. Now, a definitive study shows large earthquakes routinely trigger smaller jolts worldwide, including on the opposite side of the planet and in areas not prone to quakes.

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Two minor earthquakes that rocked central Missouri this spring demonstrate the importance of earthquake preparedness in the region. Preparation for a significant quake along the New Madrid Fault is the subject of a conference to be held at Missouri University of Science and Technology this summer.

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A professor of geosciences arrives in China 40 minutes before killer quake, watching Three Gorges Dam.

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As Midwesterners learn this morning about today's earthquake in Illinois, Missouri S&T's David Rogers is available to discuss why Midwest earthquakes pack a more powerful punch than California quakes. Please let us know how we may assist with any earthquake-related story.

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Simulation may help big cities develop early warning systems.

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The world's first seismic testing apparatus for nonstructural components performed exactly as designed last Friday at the University at Buffalo and MCEER, providing engineers with the first realistic, experimental method of simulating and evaluating how earthquakes damage building equipment, contents and components.

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To better protect critical buildings and their occupants during a temblor, engineers at the University at Buffalo will subject a life-sized, two-story replica of a fully equipped hospital room to full-scale earthquake vibrations during a demonstration to be held at 3 p.m. on Friday, October 12 on the UB North (Amherst) Campus.

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The Los Angeles basin appears to be in a seismic "lull," while the Mojave Desert is experiencing more and bigger earthquakes, according to a study in the September issue of Geology. The study suggests that seismic activity alternates between the two regions, and that seismic hazard models assuming random quake activity may need to be updated.

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The National Science Foundation (NSF) has awarded the Southern California Earthquake Center (SCEC) more than 15 million service units of computer processing time on supercomputers nationwide.