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News tagged with fault 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

created 23 hours ago | popularity 2 / 5 (1) | comments 0

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

created May 24, 2012 | popularity not rated yet | comments 0

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

created May 23, 2012 | popularity 4 / 5 (2) | comments 0

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

created Feb 09, 2012 | popularity 5 / 5 (5) | comments 0 | with audio podcast

Sichuan quake was once-in-4,000-year event: scientists

People who were killed, injured or bereaved in the 2008 Sichuan earthquake had the cruel misfortune to be victims of an event that probably occurs just once in four millennia, seismologists said on Sunday.

Space & Earth / Earth Sciences

created Sep 27, 2009 | popularity 3.8 / 5 (5) | comments 3

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

created Nov 04, 2009 | popularity 4.4 / 5 (20) | comments 13

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

created Aug 11, 2011 | popularity 5 / 5 (1) | comments 0 | with audio podcast

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

created Apr 25, 2012 | popularity 5 / 5 (2) | comments 0

There's a hole in this possible earthquake pattern

As University of California at Davis physicist and geologist John Rundle ponders the map of recent California earthquakes, he sees visions of a doughnut even Homer J. Simpson wouldn't like.

Space & Earth / Earth Sciences

created Jul 22, 2010 | popularity 4 / 5 (13) | comments 3

'Odd duck' Indonesia quake surprises scientists

(AP) -- The massive earthquake off Indonesia surprised scientists: Usually this type of jolt isn't this powerful.

Space & Earth / Earth Sciences

created Apr 11, 2012 | popularity 5 / 5 (1) | comments 5

Research gives glimpse of tectonic history on Puget Sound-region fault zones

(PhysOrg.com) -- New research on the Kitsap Peninsula, at the west edge of Washington state's Puget Sound, finds evidence that land was raised at least 6 feet by ancient earthquakes.

Space & Earth / Earth Sciences

created Oct 19, 2009 | popularity 5 / 5 (2) | comments 0

Sun and moon trigger deep tremors on San Andreas Fault

The faint tug of the sun and moon on the San Andreas Fault stimulates tremors deep underground, suggesting that the rock 15 miles below is lubricated with highly pressurized water that allows the rock to slip with little ...

Space & Earth / Earth Sciences

created Dec 23, 2009 | popularity 3.6 / 5 (5) | comments 1

Tremors on southern San Andreas Fault may mean increased quake risk

(PhysOrg.com) -- Increases in mysterious underground tremors observed in several active earthquake fault zones around the world could signal a build-up of stress at locked segments of the faults and presumably ...

Space & Earth / Earth Sciences

created Jul 09, 2009 | popularity 4.2 / 5 (11) | comments 4

Geoscientists find clues to why first Sumatran earthquake was deadlier than second

An international team of geoscientists has uncovered geological differences between two segments of an earthquake fault that may explain why the 2004 Sumatra Boxing Day Tsunami was so much more devastating ...

Space & Earth / Earth Sciences

created Jul 08, 2010 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Mars: Chaotic terrain between Kasei Valles and Sacra Fossae

(PhysOrg.com) -- Mars Express flew over the boundary between Kasei Valles and Sacra Fossae and imaged the region, acquiring spectacular views of the chaotic terrain in the area.

Space & Earth / Space Exploration

created Nov 06, 2009 | popularity 4.8 / 5 (8) | comments 0