The University of Utah Seismograph Stations recorded a magnitude-1.6 seismic event at the time of a Thursday, Aug. 16 "bump" that killed and injured rescuers at a Utah coal mine where six miners were trapped by an Aug. 6 collapse.
Dr. Brian Tucker, founder and president of GeoHazards International, serves as an expert resource on earthquake safety; earthquake risk assessment and disaster potential; global repercussions of earthquake disasters in developing counties; and the growing urban earthquake risk in the 21st century.
Earthquake simulator for homes, ultrasounds assess quakes, jelly earthquake models from the American Institute of Physics.
Heat loss from Earth's interior varies greatly with time and depends on size and number of plates, says PNAS study.
Tremors rippled the landscape of Vancouver Island, the westernmost part of British Columbia, during a major Alaskan earthquake in 2002, and geoscientists at the University of Washington have found clear evidence that the two events were related.
Many earthquakes in the deep ocean are much smaller in magnitude than expected. Geophysicists from the Woods Hole Oceanographic Institution (WHOI) have found new evidence that the fragmented structure of seafloor faults, along with previously unrecognized volcanic activity, may be dampening the effects of these quakes.
Somewhere in Southern California a large earthquake strikes without warning, and the news media and the public clamor for information about the temblor -- Where was the epicenter? How large was the quake? What areas did it impact? A picture is worth a thousand words "“ or numbers "“ and the San Diego Supercomputer Center (SDSC) at UC San Diego is helping to provide the answers.
A sheet of molten rock roughly 10 miles thick spreads underneath much of the American Southwest, some 250 miles below Tucson, Ariz. From the surface, you can't see it, smell it or feel it. But geophysicists detected the molten layer with a comparatively new and overlooked technique for exploring the deep Earth that uses magnetic eruptions on the sun.
Though categorized as magnitude 7.8, the earthquake could scarcely be felt by beachgoers that afternoon. A low tide and wind-driven waves disguised the signs of receding water, so when the tsunami struck, it caught even lifeguards by surprise. That contributed to the death toll of more than 600 persons in Java, Indonesia.
This week, researchers will begin direct monitoring of the rumblings of a submarine volcano in the southeastern Caribbean Sea. On May 6, a team of scientists led by the Woods Hole Oceanographic Institution (WHOI) installed a new underwater earthquake monitoring system on top of Kick"˜em Jenny, a volcano just off of the north coast of the island nation of Grenada.
Bridges that "dance" during earthquakes could be the safest and least expensive to build, retrofit and repair, according to earthquake engineers at the University at Buffalo and MCEER.
Cornell geologist Larry Brown is leading the fourth stage of a nearly 15-year seismic profiling effort in Tibet. Project INDEPTH aims to discover how continents formed millions of years ago.
San Diego Supercomputer Center virtual building helps engineers explore structure performance.
A project being completed within the next few weeks to map California's San Andreas Fault could bring the dream of forecasting earthquakes a bit closer to reality.
Researchers have used measurements of tiny movements in the Earth's crust to gain a better understanding of earthquake dynamics in Nicaragua, where a large quake devastated the city of Managua in 1972. Their findings confirm a prediction of movement in the Earth's surface, but show little perpendicular strain associated with the movement, indicating a lack of coupling between the converging plates despite earthquake activity.
Researchers at the University of Arkansas and Purdue University have monitored tiny tectonic movements in the Caribbean to create the first comprehensive and quantitative kinematic model describing potential earthquake activity in the region.
Analyses of a classic, slow-rupturing tsunami earthquake whose massive waves devastated the coast of Java, Indonesia, this past summer are providing insight to seismologists and engineers, who want to better understand these rare events, recommend strategies to improve safety and perhaps provide long-range forecasts of potential danger zones worldwide.
A University of Arkansas researcher and his colleagues have found that fatalistic religious beliefs can affect how people perceive risk and recover from natural disasters and how these attitudes shape the way cities are rebuilt.
A researcher investigating several facets of the San Andreas Fault has produced a new depiction of the earthquake potential of the fault's southern, highly populated section. The new study shows that the fault has been stressed to a level sufficient for the next "big one""”an earthquake of magnitude seven or greater"”and the risk of a large earthquake in this region may be increasing faster than researchers had believed.
U.S. ports serve as crucial gateways for international trade, but they're particularly vulnerable to damage in an earthquake. A new project led by Georgia Tech aims to develop strategies to help safeguard critical U.S. ports from earthquake damage.
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