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Scientific Discipline Seismicity and tectonics

Geology & Geophysics
A researcher checks a GPS ground motion sensor amid the rocky, barren landscape of the Altiplano-Puna Plateau in the southern Bolivian Andes

Science Update 19 January 2021

Using Earthquake Forensics to Study Subduction from Space

Researchers combined satellite geodetic measurements of surface motion with a new geophysical data inversion method to probe the Chilean subduction zone in the wake of the 2010 Maule earthquake.
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Geology & Geophysics

Editors' Vox 7 August 2020

Understanding Earthquakes Caused by Hydraulic Fracturing

A better understanding of how earthquakes are caused by hydraulic fracturing is an important part of building better practices to manage and mitigate their risks.
Read More »
Geology & Geophysics
Imaging seismic sources with waveforms ranging from the laboratory scale to the global scale

Editors' Vox 30 April 2020

Imaging Seismic Sources

Waveform‐based location methods are being used to better characterize and understand seismic sources from the laboratory to the global scale.
Read More »
Geology & Geophysics
Map of China and surroundings showing GPS-measured crustal velocities and large earthquakes

Research Spotlight 27 March 2020

Space-Based Data Expand Understanding of Crustal Deformation

Researchers used the largest GPS data set yet to examine deformation of the crust across continental China and its implications for tectonic activity.
Read More »
Geology & Geophysics
Large earthen rupture foregrounds a brightly colored school building damaged by an earthquake.

News 19 March 2020

Geodetic Data Pinpoint Earthquake-Prone Regions of the Himalayas

GPS measurements of the Indian and Eurasian plates reveal four locked segments most likely to produce large earthquakes.
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1 Comment

Geology & Geophysics
Aerial view of the San Andreas Fault in California on the Carrizo Plain

Research Spotlight 21 October 2019

Earthquake Statistics Vary with Fault Size

A theoretical study explores why small earthquake sources can produce quasiperiodic sequences of identical events, whereas earthquakes on large faults are intrinsically more variable.
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Geology & Geophysics
Figure 4 from paper by Preuss et al. [2019]

Editors' Highlights 1 October 2019

Can We Tell If Faults Grew During or Between Earthquakes?

Numerical simulations of earthquake cycle deformation reveal that co-seismic and interseismic fault propagation can produce distinct propagation angles that may be recorded in the crust.
Read More »
Geology & Geophysics
The magma system underneath Lipari is connected to a fault system formed by tectonic activity rather than to volcanoes.

Science Update 15 July 2019

Seismic Sensors Probe Lipari’s Underground Plumbing

An international team of scientists installed a novel, dense network of 48 seismic sensors on the island of Lipari to investigate the active magma system underground.
Read More »
Natural Hazards
Geologist points at a rock feature in a cliff.

Meeting Report 2 July 2019

Addressing Cascadia Subduction Zone Great Earthquake Recurrence

USGS Powell Center Cascadia Earthquake Hazards Working Group; Fort Collins, Colorado, 25–29 March 2019
Read More »
Geology & Geophysics
Figure showing earthquake tremor locations

Editors' Highlights 14 June 2019

Shallow Low Frequency Tremors in Japan Trench

A new seafloor seismic network detected low-frequency tremor on the subduction zone interface offshore northern Japan, indicating regions of slow slip in close proximity to shallow megathrust events.
Read More »
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Climate Change

News 21 January 2021

Overturning in the Pacific May Have Enabled a “Standstill” in Beringia

Hydrology, Cryosphere & Earth Surface

Research Spotlight 6 January 2021

Warmer Climates Speed Breakdown of Rocks

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January 2021

Volume 102 Issue 1

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Science Policy & Funding

News 15 January 2021

Cómo convertir nuestras ciudades en Treetopias

Climate Change

News 21 January 2021

Overturning in the Pacific May Have Enabled a “Standstill” in Beringia

Hydrology, Cryosphere & Earth Surface

Research Spotlight 6 January 2021

Warmer Climates Speed Breakdown of Rocks

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Geochemistry, Mineralogy, Volcanology

Editors' Vox 5 November 2020

A Geologist’s Guide to Exploring and Understanding Iceland

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Geology & Geophysics

News 12 January 2021

Modeling the Creation of Cratons, Earth’s Secret Keepers

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Atmospheric Sciences

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A Little-Known Mass Extinction and the “Dawn of the Modern World”

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