The U.S. Geological Survey said an earthquake with a magnitude of 5.4 struck near the town of Willow at 11:30 a.m. The epicenter was 58 miles from the state's largest city, Anchorage, where the rumbling continued for several moments, causing people to dive under desks and huddle in doorways.
Dr. Jay Pulliam, professor of geophysics at Baylor, says the earthquake took place where the Pacific tectonic plate is subducting beneath the North American plate.
"There have been many, many events there in the past so this is not an unusual event," Pulliam said. "It's also a remote region so the population density is extremely low."
Widely considered an expert in geophysics, Pulliam is leading a Baylor team that is playing host to two seismic stations as part of EarthScope, the largest geoscience project ever funded by the federal government. In addition, the Baylor scientists installed a 70-station network focused on the Rio Grande Rift, a rift valley extending north from Mexico, near El Paso, through New Mexico and into central Colorado. The program involves the National Science Foundation, the Incorporated Research Institutions for Seismology (IRIS), the U.S. Geological Survey, NASA and hundreds of geoscientists from universities around the country.
The Baylor researchers will use geophysical data generated by EarthScope and other projects to help them recognize potentially dangerous faults that can produce earthquakes and to learn about the processes by which our continent is evolving. The two reference seismograph stations that Baylor now hosts are among the hundreds of seismographs that contribute information to the national database. The two stations will be part of nearly 100 that remain behind to become permanent parts of the USGS's Advanced National Seismic System.
Matt Pene | Newswise Science News
In times of climate change: What a lake’s colour can tell about its condition
21.09.2017 | Leibniz-Institut für Gewässerökologie und Binnenfischerei (IGB)
Did marine sponges trigger the ‘Cambrian explosion’ through ‘ecosystem engineering’?
21.09.2017 | Helmholtz-Zentrum Potsdam - Deutsches GeoForschungsZentrum GFZ
Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.
A warming planet
Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.
The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...
Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...
Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...
For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
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