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Seismogram

What Is the Cause of an Earthquake?

Stick-slip events in the earth cause damage like this, but limited data from these relatively rare earthquakes makes them difficult to model with machine learning. Transfer learning may provide a path to understanding when such deep faults slip. Credit: Dreamstime

Scientists uncover the secret triggers of ‘impossible’ earthquakes

Watch the Earth split in real time: Stunning footage reveals a...

Hot Springs in Yellowstone National Park

AI uncovers 86,000 hidden earthquakes beneath Yellowstone’s surface

Cross-section showing changes in electron density at different altitudes. Dashed lines show changes in vertical alignment. Credit: Fu et al., 2025

Thousands of sensors reveal 3D structure of earthquake-triggered sound waves

Illustration of the Cascadia subduction zone, a region where the patterns examined in this study play out. (Credit: Carie Frantz, Wikimedia Commons)

The ripple effect of small earthquakes near major faults

Aerial view of Ontake Volcano, Honshū Island, Japan. Image Credit: Dr. Koshun Yamaoka

Eruption loading: New approaches to earthquake monitoring at Ontake volcano, Japan

Bryce Canyon National Park, Utah

Slickrock: Geologists explore why Utah’s Wasatch Fault is vulnerable to earthquakes

seismogram

Claims for the world’s deepest earthquake challenged by new analysis

Photo of Taylor’s Mill in Readington Township, New Jersey after the 5 April 2024 earthquake. | GEER-NIST

Closer look at New Jersey earthquake rupture could explain shaking reports

San Andreas fault

Could geometry offer a new explanation for why earthquakes happen?

Magnified through a microscope, diatoms, which are a type of siliceous microalgae preserved within sediment, helped the researchers determine the salinity levels of the core samples. Photo courtesy of Jessica DePaolis.

Subduction zone splay faults compound hazards of great earthquakes

Researchers used unmanned aerial vehicle images superimposed on centimeter-resolution topography to study the surface rupture of the 2021 magnitude 7.4 Maduo earthquake in China. This image shows the fault scarp, tensional cracks on the hanging wall, and the left-laterally offset channel. Credit: Yanxiu Shao

Fault maturity or orientation: Which matters more for quakes?

Shears — or breaks caused by strain — in rock outcrops like the one pictured here could shed new light on tectonics that occur between major earthquakes in the subduction zone, according to new research. A camera lens shows the scale of the features of the rock. Credit: Provided by Donald Fisher . All Rights Reserved.

Ancient rocks improve understanding of tectonic activity between earthquakes

The map of Nankai Trough in southeast Japan, where one of the team’s ongoing project is to image the fluids underneath seafloor. (Credit: Dr Lina GAO)

New geophysical technique enhances imaging of fluid-filled rocks finding connections with...

Cross section seismic profile of the Earth.A seismic image of the Hikurangi plateau reveals details about the Earth’s interior and what it’s made of. The blue-green layer under the yellow line shows water buried within rocks. Researchers at the University of Texas Institute for Geophysics think the water could be dampening earthquakes at the nearby Hikurangi subduction zone. Credit: Andrew Gase

Discovery of massive undersea water reservoir could explain New Zealand’s mysterious...

A diagram depicting the magma chamber beneath the Long Valley Caldera. The diagram was developed from tomographic imaging using seismic waves. Credit: Biondi et al. (2023)

California supervolcano is cooling off but may still cause quakes

In this overview map of Utah earthquakes, the dotted line marks the approximate location of the transition zone between the Basin and Range province and the Colorado Plateau and the blue rectangle indicates the study area. Historic seismic events in the study area (1900–1981, 4.5 ≤ M ≤ 6.6) from UUSS and USGS catalogs, and location of basins and ranges mentioned in the text. Horizontal purple dashed lines indicate approximate locations of Blue Ribbon (BRT) and Cove Fort (CVT) Transverse Zones (P. D. Rowley, 1998), thin black lines indicate Quaternary faults. MP: Markagunt Plateau Volcanic Field. The larger map (c) shows seismicity in the study area since 1981, ML ≥ 2.5 (UUSS). PHOTO CREDIT: University of Utah

What can central Utah’s earthquake ‘swarms’ reveal about the West’s seismicity?

New lab work suggests that rock roughness affects earthquake aftershock dynamics along faults. Credit: Dextersinister/Wikimedia Commons, CC BY-SA 4.0

Rougher faults may generate more earthquake aftershocks

The massive Feb. 6 quake in Eastern Turkey killed more than 50,000 people and toppled more than 100,000 buildings. (Photo/Ahmet Ertas via Pixabay)

Turkey’s next quake: USC research shows where it could happen —...

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