Tag: Journal of Geophysical Research: Solid Earth - Page 25

A new numerical model tracks the speed and pathway of a dike propagating through the Earth’s crust.

An Improved Model of How Magma Moves Through the Crust

by Terri Cook 18 April 201717 November 2022

Researchers have developed a new numerical model that can, for the first time, solve for both the speed and the path of a propagating dike.

Cracking of a fluid barrier beneath Japan’s Mount Ontake may have caused the deadly eruption in 2014

Research Spotlights

What Caused the Fatal 2014 Eruption of Japan's Mount Ontake?

by Terri Cook 17 March 20176 December 2021

Analysis of the change in the stratovolcano's tilt just prior to the explosion suggests that the cracking of a previously intact fluid barrier caused the country's deadliest eruption since 1926.

Mineral layers offer a key to examine the behavior of individual magma pulses in volcanic arcs.

Research Spotlights

Pulses of Rising Magma in Sierra Nevada's Past

by Terri Cook 3 February 20177 March 2023

A detailed study of layered igneous material at California's Fisher Lake offers a novel approach to identifying the pathways and timescales of individual magma pulses in volcanic arcs.

An offshore subduction zone drove the tsunami that devastated Japan in 2011.

Research Spotlights

An Up Close Look at the Megaquakes That Cause Tsunamis

by S. Witman 25 January 20176 December 2021

Researchers recreate changes in the seafloor during Japan's devastating 2011 tsunami.

Researchers pinpoint differences in fracture energy and rupture mechanisms between deep and shallow earthquakes.

Research Spotlights

Probing the Source Properties of Deep Earthquakes

by Terri Cook 19 December 201610 March 2022

A global review of earthquake rupture parameters reveals that deep earthquakes have larger fracture energies and may have different rupture mechanisms than shallower seismic events.

A building torn in two in Concepción, Chile, following a magnitude 8.8 earthquake in 2010.

Research Spotlights

Understanding Tectonic Processes Following Great Earthquakes

by S. Witman 2 December 20165 October 2022

Scientists parse out the processes underlying tectonic signals detected by GPS networks.

Researchers hope to pinpoint timing of future eruptions in Italy’s Campi Flegrei caldera.

Research Spotlights

When Might the Campi Flegrei Caldera Erupt Again?

by A. Branscombe 23 November 201630 September 2022

The clock may be ticking for Italy's Campi Flegrei caldera, a region with a pattern of numerous and sometimes large explosive eruptions. The next explosion could be less than 100 years away.