Featured image: A GPS station in the Sawtooth National Forest near Ketchum, Idaho. Photo by Scott Haefner (USGS).
Paper: Months-long thousand-kilometre-scale wobbling before great subduction earthquakes
Authors: J. R. Bedford, M. Moreno, Z. Deng, O. Oncken, B. Schurr, T. John, J. C. Báez, M. Bevis
We’re always on the lookout for earthquake precursors, indicators that the Earth might be gearing up for some shaking, and geophysicists think they might have found a new one: a small but measurable back-and-forth “wobble” of the land starting several months before very big earthquakes hit.
Continue reading “Tiny wobbles foreshadow big earthquakes”
Featured image: A fence broken by the 1906 San Francisco earthquake, by G. K. Gilbert. Public domain.
the millions of people living near the San Andreas fault zone in
California, the billion-dollar question is when the next “big one”
is going to happen.
Continue reading “How to locate oceanic earthquakes without getting your feet wet”
Featured image: The Yellow River Breaches its Course by Ma Yuan, Public Domain
Paper: Uranium isotopic constraints on the nature of the prehistoric flood at the Lajia site, China
Authors: Le Li, Jun Chen, David William Hedding, Yuanhe Fu, Maolin Ye, Gaojun Li
A small sand deposit might hold the key to dating the rise of China’s first dynasty.
Continue reading “What Caused the Flood that (Possibly) Gave Rise to an Empire?”