A new analysis of seismic data recorded after the massively violent eruption of the underwater volcano Hunga Tonga-Hunga Ha'apai, on January 15, 2022, has revealed new and useful information on the sequence of events. Kotaro ...
Earth Sciences
Jan 27, 2023
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12
Using a novel imaging technique for volcanoes that produces high-resolution pictures of seismic wave properties, a new study reveals a large, previously undetected body of mobile magma underneath Kolumbo, an active submarine ...
Earth Sciences
Jan 12, 2023
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2342
NASA's InSight lander recorded a magnitude 4 marsquake last Dec. 24, but scientists learned only later the cause of that quake: a meteoroid strike estimated to be one of the biggest seen on Mars since NASA began exploring ...
Planetary Sciences
Oct 28, 2022
6
101
Researchers have observed seismic waves propagating along the surface of a planet other than Earth for the first time. The marsquakes that resulted from two large meteorites that hit Mars were recorded by NASA's InSight lander ...
Planetary Sciences
Oct 27, 2022
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156
Underground carbon sequestration is a promising approach to fight climate change, yet there are major obstacles to overcome before this technology can be applied on a large scale. A new study from Japan may address one such ...
Earth Sciences
Sep 16, 2022
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111
Lawrence Livermore National Laboratory (LLNL) scientists have created a new adjoint waveform tomography model that more accurately simulates earthquake and explosion ground motions. The paper, published in the Journal of ...
Earth Sciences
Aug 10, 2022
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129
We are underway on our 48-day long expedition offshore of the west coast of Mexico near Acapulco, where the young Cocos oceanic plate dives beneath the North American plate. Most of this subduction zone, often referred to ...
Earth Sciences
Jun 8, 2022
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6
A new method of detecting mega earthquakes, which picks up on the gravity waves they generate by using deep-learning models created at Los Alamos National Laboratory, can estimate earthquake magnitude in real time and provide ...
Earth Sciences
May 12, 2022
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366
On 15 January, the eruption of a submarine volcano in the Tonga archipelago destroyed 90% of the uninhabited island of Hunga Tonga Ha'apai and formed an ash plume half the size of France. It also generated an atmospheric ...
Earth Sciences
Apr 20, 2022
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3
In disaster mitigation planning for future large earthquakes, seismic ground motion predictions are a crucial part of early warning systems and seismic hazard mapping. The way the ground moves depends on how the soil layers ...
Earth Sciences
Apr 18, 2022
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