Tag Archives: Geophysics

Railways could double as a tool for probing Earth’s shallow crust

Seismologists prospect for mineral deposits in Canada by recording the humming vibrations from freight trains. Continue reading

Posted in Physics Today | Tagged , , | Leave a comment

Real-Time Measurements of Earth’s Spin and Tilt

An array of ring lasers provides the first continuous measurement of Earth’s motion from a single location.  Continue reading

Posted in APS Physics | Tagged , , , | Leave a comment

Seafloor avalanches travel fast and far

Acoustic measurements of sediment concentration quantify the wide-reaching influence of turbidity currents.  Continue reading

Posted in Physics Today | Tagged , , | Leave a comment

Pressure alters rock magnetization

A rock buried in Earth’s crust or a meteorite compressed on impact may end up with increased magnetization.  Continue reading

Posted in Physics Today | Tagged , , | Leave a comment

Monitoring Volcanic Eruptions Using Lightning

Volcanologist Alexa Van Eaton explains the origins of electrical activity in volcanic ash plumes and why it sometimes leads to detectable lightning. Continue reading

Posted in APS Physics | Tagged , , | Leave a comment

Real-time observations explain magma dynamics of Kilauea’s 2018 eruption

Piston-like caldera collapses drove episodic lava flows far from the summit.  Continue reading

Posted in Physics Today | Tagged , , | Leave a comment

Plants slow river migration

Rivers in unvegetated landscapes migrate an order of magnitude faster than their vegetated counterparts. Continue reading

Posted in Physics Today | Tagged , , | Leave a comment

Volcano topography can distort ground deformation data

Cliff-like features could explain the anomalous measurements taken by tiltmeters deployed at Hawaii’s Kilauea and other volcanoes. Continue reading

Posted in Physics Today | Tagged , , , , | Leave a comment

Measurements of elusive mineral could explain mantle discontinuity

A predicted phase transition shows up in high-pressure experiments. Continue reading

Posted in Physics Today | Tagged , , , | Leave a comment

Mineral measurements could explain mantle seismology

A predicted phase transition shows up in high-pressure experiments. Continue reading

Posted in Physics Today | Tagged , , , | Leave a comment