One of the challenges for assessing earthquake hazards in the Caribbean is that most of the tectonic plate is below sea level and "we can only access the active faults where they are exposed on the islands,” she adds. This is in sharp contrast with the San Andreas Fault in California, where monitoring equipment is in place on both sides of the plate boundary along its entire length.
“Accurate assessment of earthquake probability requires a lot of data, which we just don’t have at this time for the Caribbean,” Cooke explains. “Of course the effective mitigation of earthquake hazards doesn’t just depend on assessment of earthquake probability. Good building code and disaster plans are also needed by all communities living in areas of active faulting.”
Cooke and colleagues in her UMass Amherst lab are among only a handful in the world who use a more accurate and sensitive wet clay box rather than sand box for fault modeling. While sand is easier to work with at the outset, it does not “remember” a fault cut as accurately. Clay is more like real Earth in expressing discrete slips along a fault line.
Cooke says anything we can do before an earthquake strikes to better understand how a fault is behaving, how it’s accumulating stress and how it might relieve that stress in a quake will help us understand the physics of the fault better and help prevent losses. She uses both numerical models in the computer and analog models in the clay in order to better understand tectonic systems.
Janet Lathrop | Newswise Science News
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The building blocks of matter in our universe were formed in the first 10 microseconds of its existence, according to the currently accepted scientific picture. After the Big Bang about 13.7 billion years ago, matter consisted mainly of quarks and gluons, two types of elementary particles whose interactions are governed by quantum chromodynamics (QCD), the theory of strong interaction. In the early universe, these particles moved (nearly) freely in a quark-gluon plasma.
This is a joint press release of University Muenster and Heidelberg as well as the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt.
Then, in a phase transition, they combined and formed hadrons, among them the building blocks of atomic nuclei, protons and neutrons. In the current issue of...
Thin-film solar cells made of crystalline silicon are inexpensive and achieve efficiencies of a good 14 percent. However, they could do even better if their shiny surfaces reflected less light. A team led by Prof. Christiane Becker from the Helmholtz-Zentrum Berlin (HZB) has now patented a sophisticated new solution to this problem.
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A study in the journal Bulletin of Marine Science describes a new, blood-red species of octocoral found in Panama. The species in the genus Thesea was discovered in the threatened low-light reef environment on Hannibal Bank, 60 kilometers off mainland Pacific Panama, by researchers at the Smithsonian Tropical Research Institute in Panama (STRI) and the Centro de Investigación en Ciencias del Mar y Limnología (CIMAR) at the University of Costa Rica.
Scientists established the new species, Thesea dalioi, by comparing its physical traits, such as branch thickness and the bright red colony color, with the...
Scientists have succeeded in observing the first long-distance transfer of information in a magnetic group of materials known as antiferromagnets.
An international team of researchers has mapped Nemo's genome, providing the research community with an invaluable resource to decode the response of fish to...
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