News tagged with earthquake zone
Seattle Fault Zone -- 900-930 AD earthquake larger than previously thought
A fresh look at sedimentary evidence suggests the 900-930 AD rupture of the Seattle fault possibly produced a larger earthquake than previously recognized. The Seattle fault zone, a series of active-east-west trending thrust ...
Space & Earth / Earth Sciences
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LiDAR technology reveals faults near Lake Tahoe
Results of a new U.S. Geological Survey study conclude that faults west of Lake Tahoe, Calif., referred to as the Tahoe-Sierra frontal fault zone, pose a substantial increase in the seismic hazard assessment for the Lake ...
Space & Earth / Earth Sciences
May 24, 2012 |
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Geology student drills into Tohoku quake source
(Phys.org) -- For the past eight weeks, geoscience graduate student Tamara Jeppson has traded her usual commute, from her Madison apartment to Weeks Hall on the University of Wisconsin-Madison campus, for ...
Space & Earth / Earth Sciences
May 23, 2012 |
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Scientists find odd twist in slow 'earthquakes': Tremor running backwards
Earthquake scientists trying to unravel the mysteries of an unfelt, weeks-long seismic phenomenon called episodic tremor and slip have discovered a strange twist. The tremor can suddenly reverse direction ...
Space & Earth / Earth Sciences
May 22, 2011 |
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New research on Japanese quake ominous for Pacific Northwest
Scientists are still unraveling last year's giant Tohoku earthquake and tsunami in Japan, and some of what they're finding doesn't bode well for the Pacific Northwest.
Space & Earth / Earth Sciences
Feb 21, 2012 |
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Researchers create 3-D laser maps that show how earthquake changes landscape
Geologists have a new tool to study how earthquakes change the landscape down to a few inches, and it's giving them insight into how earthquake faults behave. In the Feb. 10 issue of the journal Science, a team ...
Space & Earth / Earth Sciences
Feb 09, 2012 |
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Shaking the Earth: How Water Helps Tectonic Plates Slide in New Zealand
(PhysOrg.com) -- New Zealand is the site of one of the world’s youngest subduction zones, where the Pacific Plate of Earth’s crust dives beneath the Australian Plate. Now, a University of Utah study shows ...
Space & Earth / Earth Sciences
Aug 05, 2009 |
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Greater tsunami threat identified
The shape of the seabed where the 2004 Sumatra earthquake struck may indicate that the strength of the underlying rocks added to the size of the resulting tsunami, according to new research.
Space & Earth / Earth Sciences
Jun 21, 2011 |
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Earthquakes actually aftershocks of 19th century quakes
(PhysOrg.com) -- When 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 ...
Space & Earth / Earth Sciences
Nov 04, 2009 |
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Report cites 'liquefaction' as key to much of Japanese earthquake damage
(PhysOrg.com) -- The massive subduction zone earthquake in Japan caused a significant level of soil "liquefaction" that has surprised researchers with its widespread severity, a new analysis shows.
Space & Earth / Earth Sciences
Apr 18, 2011 |
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New system can warn of tsunamis within minutes
Seismologists have developed a new system that could be used to warn future populations of an impending tsunami only minutes after the initial earthquake. The system, known as RTerg, could help reduce the death toll by giving ...
Space & Earth / Earth Sciences
Mar 04, 2011 |
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New data shows El MayorCucapah earthquake was simple on surface, complicated at depth
(PhysOrg.com) -- Like scars that remain on the skin long after a wound has healed, earthquake fault lines can be traced on Earth's surface long after their initial rupture. Typically, this line of intersection ...
Space & Earth / Earth Sciences
Aug 11, 2011 |
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Researchers release first large observational study of 9.0 Tohoku-Oki earthquake
When the magnitude 9.0 Tohoku-Oki earthquake and resulting tsunami struck off the northeast coast of Japan on March 11, they caused widespread destruction and death. Using observations from a dense regional ...
Space & Earth / Earth Sciences
May 19, 2011 |
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Signs of three major Japan quakes before 2011
Three major earthquakes seem to have occurred in northern Japan before it was hit in March 2011 by a massive quake and tsunami, researchers said Wednesday based on new evidence.
Space & Earth / Earth Sciences
Apr 25, 2012 |
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New data: Mega-quake could strike near Seattle
Using sophisticated seismometers and GPS devices, scientists have been able to track minute movements along two massive tectonic plates colliding 25 miles or so underneath Washington state's Puget Sound basin. Their early ...
Space & Earth / Earth Sciences
Aug 16, 2009 |
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