News articles tagged with 'magnitude'
Earthquakes actually aftershocks of 19th century quakes
— 5 Nov 2009 13:03 | Geology and palaeontologyWhen small earthquakes shake the central U.S., citizens often fear the rumbles are signs a big earthquake is coming. Fortunately, new research instead shows that most of these earthquakes... — full story
Subseafloor sediment in South Pacific Gyre
— 23 Jun 2009 12:21 | EnvironmentAn international oceanographic research expedition to the middle of the South Pacific Gyre - a site that is as far from continents as it is possible to go on Earth's surface - found... — full story
Early warning systems underestimate magnitude of large earthquakes
— 29 Jan 2009 20:26 | Geology and palaeontologyScientists seek to create reliable early warning systems that accurately estimate the magnitude of an earthquake within the first seconds of rupture. In this paper published by the... — full story
Study links seismic slip and tremor, with implications for subduction zone
— 29 Jan 2009 19:00 | Geology and palaeontologyIn the last decade, scientists have recorded regular episodes of tectonic plates slowly, quietly slipping past each other in western Washington and British Columbia over periods of... — full story
New liquefaction hazard maps of Santa Clara Valley, Northern California
— 27 Jan 2009 17:56 | Geology and palaeontologyNew hazard maps for communities from San Jose to Palo Alto in Northern California delineate the probability of earthquake-induced liquefaction, based on three scenarios: a magnitude... — full story
Great Indian Ocean earthquake of 2004 set off tremors in San Andreas fault
— 11 Dec 2008 11:08 | Geology and palaeontologyIn the last few years there has been a growing number of documented cases in which large earthquakes set off unfelt tremors in earthquake faults hundreds, sometimes even thousands,... — full story
Potential for large earthquake off coast of Sumatra remains large
— 4 Dec 2008 10:18 | Geology and palaeontologyThe subduction zone that brought us the 2004 Sumatra-Andaman earthquake and tsunami is ripe for yet another large event, despite a sequence of quakes that occurred in the Mentawai Islands... — full story
Engineers identify conditions that initiate erosion
— 31 Oct 2008 15:12 | EnvironmentWind, water, and waves erode billions of tons of soil from the earth's surface. As a result, many rivers are plagued with excessive amounts of suspended sediment. According to the U.S.... — full story
May 2008 quake in China could be followed by another significant rupture
— 11 Sep 2008 20:40 | Geology and palaeontologyResearchers analysing the May 2008 Wenchuan earthquake in China's Sichuan province have found that geological stress has significantly increased on three major fault systems in the... — full story
Scientists distinguish waves from mine collapses from other seismic activities
— 14 Jul 2008 17:40 | TechnologyResearchers have devised a technology that can distinguish mine collapses from other seismic activity. Using the large seismic disturbance associated with the Crandall Canyon mine collapse... — full story