USGS records small Earthquakes near #OrovilleDam

Two small Earthquakes were recorded near Lake Oroville in the last 24 hrs, which appear to be a result of the fast lake level changes, and the subsequent release of pressure from water weight. Note the two yellow dots on the USGS map below: Source of map, here JD Elam notes on Facebook: The predicted…

Earth’s magnetic poles may be poised to flip

Article by Phil Livermore, Associate Professor of geophysics, University of Leeds and Jon Mound, Associate Professor of Geophysics, University of Leeds The Earth’s magnetic field surrounds our planet like an invisible force field – protecting life from harmful solar radiation by deflecting charged particles away. Far from being constant, this field is continuously changing. Indeed, our…

Lush Venus? Searing Earth? It could have happened

Rice University scientists propose that life in the solar system could have been very different If conditions had been just a little different an eon ago, there might be plentiful life on Venus and none on Earth. The idea isn’t so far-fetched, according to a hypothesis by Rice University scientists and their colleagues who published…

Ironing out the mystery of Earth’s magnetic field

Scientists directly measure thermal conductivity of iron at planetary core conditions for the first time The earth’s magnetic field has been existing for at least 3.4 billion years thanks to the low heat conduction capability of iron in the planet’s core. This is the result of the first direct measurement of the thermal conductivity of…