The increase in the frequency of low intensity tremors, originating from the San Andreas Fault, about 10 hours after the magnitude 6 Napa earthquake last August, and an observed increase in two other locations, frequently struck by earthquakes, has set the ground for a comprehensive search for tremors across the state. Watch the video with UC Berkeley seismologist Peggy Hellweg describing how "Tremorscope" a new technology may explain a possible connection between tremors and earthquakes.
Researchers from the National Science Foundation (NSF) have gathered evidence for the existence of a salty aquifer beneath Antarctica's ice-free McMurdo Dry Valleys, by using an airborne electromagnetic (AEM) sensor, known as SkyTEM, mounted to a helicopter-borne sensor. The salty aquifer may support microbial ecosystems and play an important role in contemporary biological processes in the Dry Valleys.
Anders Bo Skov, a student at the University of Copenhagen, has achieved a breakthrough in solar energy storage with the aid of his supervisor, Mogens Brondsted Nielsen. Together they have published the paper “Towards Solar Energy Storage in the Photochromic Dihydroazulene-Vinylheptafulvene System” in the journal “Chemistry - A European Journal.” The paper outlines Skov’s success in developing molecules capable of obtaining and holding large amounts of solar energy, storing it without loss, and releasing it on demand.
A newly released report from the U.S. Geological Survey (USGS) has for the first time attempted to establish a connection between human activities such as fracking with earthquake occurrence. Even though small in magnitude, human-induced earthquakes are becoming gradually important and warnings that greater magnitude events may be generated are expressed.
Researchers at Penn State University have developed a new analytical technique for identifying common drilling substances in drinking water. Using the technique, the scientists reported contamination in the drinking water taps of three Pennsylvania homes located near a known well-pad leak.
A study performed by the U.S. Geological survey and published in Science reveals that rivers respond quickly to dam removal. In the past forty years, more than 1000 dams have been removed from US rivers due to safety concerns, sediment buildup, and inefficiency. According to Jim O’Connor, a geologist with the U.S.G.S. and lead author of the study, “rivers quickly erode sediment accumulated in former reservoirs and redistribute it downstream, commonly returning the river to conditions similar to those prior to impoundment." Because of this, more and more dams are coming down as a means of river restoration.
A new study, conducted from the Friedrich Schiller University Jena in Germany, indicates that melt waters in airports are responsible for soil contamination. Various de-icing fluids used in airports can affect soil and groundwater conditions during thawing, after ending up in unpaved areas. The research team's results are published in the science magazine "Environmental Science and Pollution Research".