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faults

Map of faults in California with many orientations
Posted inNews

Creeping Faults May Have Simpler Geometries

by Erin Martin-Jones 20 November 202420 November 2024

A recent study offers an alternative perspective on why some fault segments slide smoothly, whereas others get stuck and produce earthquakes.

Field photo of a rock outcrop.
Posted inEditors' Highlights

Structural Inversion of an Intracratonic Rift System in Deep Time

by Alexis Ault 31 October 202431 October 2024

A new study reconstructs how an ancient North American rift system was uplifted in space and time due to subsequent continent-continent collision.

Vistas desde el aire durante la noche, varias brillantes fuentes de lava estallan a lo largo de una fisura lineal, con columnas teñidas de naranja elevándose sobre ellas. Las luces de una ciudad están a lo lejos.
Posted inResearch Spotlights

En una rara oportunidad, investigadores observan la formación de los valles islandeses

Sarah Stanley, Science Writer by Sarah Stanley 9 September 20249 September 2024

Durante el período previo a las recientes erupciones volcánicas cerca de la ciudad de Grindavík, científicos documentaron la formación de grabens en tiempo real.

Photo of a long line of cracked earth within a mountain valley.
Posted inEditors' Vox

Operational Earthquake Forecasting – What Is It and How Is It Done?

by Leila Mizrahi 29 August 202410 September 2024

While earthquakes cannot be deterministically predicted, operational earthquake forecasting systems can provide valuable insights into the likelihood of future quakes.

Viewed from the air above at nighttime, several bright fountains of lava erupt along a linear fissure, with orange-tinged plumes rising above them. The lights of a city are in the distance.
Posted inResearch Spotlights

In Rare Opportunity, Researchers Observe Formation of Icelandic Valleys

Sarah Stanley, Science Writer by Sarah Stanley 7 August 20249 September 2024

During the lead-up to recent volcanic eruptions near the city of Grindavík, scientists documented graben formation in real time.

Map of the Moon with symbols.
Posted inEditors' Highlights

New Moonquakes from Old Data

by Laurent G. J. Montési 5 August 202414 August 2024

Almost 50 years after they were turned off, the Apollo seismometers still have secrets to reveal.

An aerial image of Palos Verdes, Calif. The land is green, with roads curving across it, and the exposed cliffside along the ocean is brown. The ocean is deep blue, and the sky is hazy.
Posted inResearch Spotlights

Imaging Below the Surface Reveals One of Los Angeles’s Webs of Faults

by Nathaniel Scharping 29 July 202429 July 2024

Damage zones extend to either side of many faults and can affect how future earthquakes behave.

Map of Paradox Basin with symbols
Posted inEditors' Highlights

Faults Along Salt Walls Are Less Stressed in the Paradox Basin

by Birgit Müller 22 July 202422 July 2024

Based on an extended stress database, scientists observe systematic changes in the tectonic stress state and a reduction in fault reactivation potential near salt walls in the Paradox Basin.

A wide, flat area of tan-colored earth, with mountains in the distance. In the foreground, a paler, gray-colored substance appears to overlay the ground. Streaks of the tan-colored ground are visible beneath the gray substance.
Posted inResearch Spotlights

Tracing Millions of Years of Geologic Stress in the Andean Plateau

by Nathaniel Scharping 15 July 202415 July 2024

Paleostress modeling shows how a region of the Andean Plateau was uplifted and formed beginning more than 20 million years ago.

大地震地表破裂的航空影像。
Posted inResearch Spotlights

断裂成熟度和断裂走向,哪个对大地震更重要?

Sarah Stanley, Science Writer by Sarah Stanley 8 July 20248 July 2024

对青藏高原2021年玛多地震的详细研究表明,与先前的假设相反,断裂走向对地震破裂动力学特征的影响有时会超过断裂成熟度的影响。

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