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seismology

A close-up view of a fiber-optic cable. One main cable is filled with smaller glass strands that are pathways through which light communications pass and transmit data.
Posted inNews

Thunderquakes Map the Subsurface

Sarah Derouin, Science Writer by Sarah Derouin 4 December 20234 December 2023

Researchers have figured out how rumbling thunder turns to seismic waves and how this shaking could be used to reveal subsurface geology.

A colorful bathymetric image of the Minami Kasuga seamount, with the highest parts of the mountain in red and the lowest parts in blue
Posted inResearch Spotlights

Subducted Seamounts May Lead to Larger Earthquakes

by Nathaniel Scharping 30 November 202330 November 2023

New findings show that underwater mountains may increase friction along subduction zones, building up stress and making larger ruptures more likely.

Illustration of a cross section of Mars with blue and black lines, representing seismic waves, bouncing off internal layers.
Posted inNews

Mars’s Interior May Have an Extra Layer of Molten Rock

Javier Barbuzano, Science Writer by Javier Barbuzano 29 November 202329 November 2023

New findings suggest that unlike in Earth, the bottom of Mars’s mantle is a sea of molten silicate rock.

Map of Mars surface with symbols indicating seismic activity.
Posted inEditors' Highlights

Where the Wild Marsquakes Are

by Laurent G. J. Montési 1 November 202331 October 2023

A new analysis of the seismic data gathered by the InSight lander reveals that marsquakes occur across a much larger area of the planet than previously believed.

Diagram from the paper.
Posted inEditors' Highlights

Rift-to-Ridge: Mid-Atlantic Ridge Segments Imprinted During Rifting

by Emilie Hooft 19 October 202317 October 2023

A new seismic study shows that magmatism along the eastern North American rift margin was segmented, and that rift discontinuities influence formation of fracture zones along the Mid-Atlantic Ridge.

Photo of a snow covered mountain
Posted inEditors' Highlights

Illuminating the Complex Structural Fabric Beneath the European Alps

by Fiona Darbyshire 5 October 20233 October 2023

A new study investigates the dynamics of the complex continental collision that formed the European Alps and reveals how structural alignments change with depth.

Map and 2 graphs form the paper
Posted inEditors' Highlights

Earthquakes Have Preparatory Stage Years Before Rupture

by Victor Tsai 29 September 202329 September 2023

Tidally induced seismicity increased locally before the 2019 Ridgecrest earthquake, suggesting that fault sensitivity to stress increases in the years immediately before large earthquakes.

An ocean wave prepares to break, while other waves close in behind it under a hazy sky.
Posted inResearch Spotlights

Exploring the Mantle Through Microseisms

by Rebecca Owen 21 September 202321 September 2023

A new method for examining the tiny vibrations of Earth caused by ocean swells could help reveal details of deep-Earth structure.

Photo of monitoring station in a river and map of study area with mass of bedload transport.
Posted inEditors' Highlights

Seismometers Listening at Rivers to Measure Sediment Transport

by Odin Marc 8 September 20236 September 2023

Bedload sediment, transported throughout an alpine catchment by a flood, was remotely tracked in detail by analyzing the ground vibrations recorded by a network of 24 seismic sensors.

Figure from the paper.
Posted inEditors' Highlights

Source Selection Essential to Inter-Source Cross-Correlation 

by Michael Bostock 7 September 20236 September 2023

Inter-source correlograms yield coherent signals upon careful consideration of source mechanisms and source-receiver geometry, affording new means of characterizing planetary interiors.

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