Sentences with phrase «much larger quake»
Keilis - Borok bases his work on the tip - of - the - iceberg premise that patterns of small seismic disturbances hint at the onset of much larger quakes.
http://discovermagazine.com/ Not exact matches
He pointed to induced quakes of magnitude 4 or larger in the past year in Texas, Oklahoma, Arkansas, Colorado, New Mexico, and Ohio, but said much of this happened too late for the research council to include in its study.»
Research suggests that small quakes immediately raise the risk of a large quake by as much as a thousandfold, says Thomas Jordan, director of the Southern California Earthquake Center, though the probability is still only about 1 percent per day and falls rapidly with time.
The earthquake — estimated at magnitude 9.0 on the Richter scale — occurred in a total area much smaller than previous large earthquakes, such as the 8.8 Chilean earthquake last year, arguing that the slippage was much greater for the Japan quake, one of the four most powerful earthquakes on record.
In fact, five fault segments failed simultaneously, producing a quake much larger than the model had predicted.
«With a subduction fault, you get a much larger locked area, so the quakes can be much bigger,» says geophysics professor Mark Zoback of Stanford University.
But because a fault system can only release as much energy as is built up by grinding tectonic plates, increasing the frequency of large events means there will be less energy to fuel smaller quakes.
Because the faults that break during the earthquake are so deep, the seismic wave energy they radiate spreads over a much larger area than in a shallow quake.
The government's decision to pursue major publishers on antitrust charges has put the Internet retailer Amazon in a powerful position: the nation's largest bookseller may now get to decide how much an e-book will cost, and the book world is quaking over the potential consequences.
The government's decision to pursue major publishers on antitrust charges has put the Internet retailer Amazon n a powerful position: the nation's largest bookseller may now get to decide how much an e-book will cost, and the book world is quaking over the potential consequences.
That earlier quake, although not as large (estimated to have been 8.6 - 8.7 in magnitude), was much closer to Fuji than the more recent 9.0 magnitude seismic event.