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San Andreas Fault

‘Slow earthquakes’ on San Andreas Fault increase risk of large quakes

International collaboration studies the predictability of earthquakes

Lakes in the roadless Minto Flats surround the Tanana River in this photo from July 2014.

Scientists find pre-earthquake activity in central Alaska

Historical records help uncover new mechanism in deadly 1906 Taiwan quake

Aerial photograph of Istanbul. The entire metropolitan area is considered to be particularly earthquake-prone

Small earthquakes caused by migrating gasses in the underground

The Nazca Plate is creeping under the South American Plate.

Water pressure a critical factor for mega-earthquakes

A recent study led by UMass Amherst looked at risk in southeast Japan after the devastating 2011 quake and tsunami.

Modeling future earthquake and tsunami risk in southeast Japan

Seismogram

Sediment core from sluice pond contains evidence for 1755 New England...

The Stanton Landslide (center middle distance) is over 800 meters across and has left an obvious scar in the hillside above the deposit.

Landslide modeling after Kaikoura Quake provides data to first responders

A map summarizing the new REEF measure of seismic energy for events around the Pacific Ring of Fire shows the regional patterns indicating earthquake rupture character is affected by persistent features that differ from region to region.

Seismologists introduce new measure of earthquake ruptures

Garnet.

The secrets of garnet reveal source of water to fuel powerful...

Map shows earthquake epicenters (surrounded in light red) offshore where the Cocos and North American tectonic plates meet. The newer fault zone is inland, the black lines mark the changing trajectories of abyssal hills atop the descending Cocos Plate. Blue-shaded areas in this zone are where subduction angles remain steep. The pink area, below Mexico City, is a transition zone where another earthquake could occur. The 2017, 1999 and 1980 quake epicenters are in a red-shaded zone to the southeast that is considered to be at most risk for quakes.

Mexico’s 2017 earthquake emerged from a growing risk zone

On its current expedition, the drillship JOIDES Resolution is working off the coast of New Zealand.

Deep-sea observatories to offer new view of seabed earthquakes

paleoseismological record of the Liquiñe-Ofqui Fault Zone (LOFZ)

Researchers discover evidence of earthquakes that affected Chilean coast in the...

Fracking

Human-made earthquake risk reduced if fracking is 895m from faults

seismogram

Earthquakes follow wastewater disposal patterns in southern Kansas

This schematic illustration of the 2014 Iquique earthquake off the coast of Chile (magnitude 8.1) shows the locations of foreshocks (blue) and aftershocks (red) relative to the area of large slip on the fault (contour lines).

Analysis of major earthquakes supports stress reduction assumptions

Earthquake simulation

Hayward fault earthquake simulations increase fidelity of ground motions

This new map of Earth’s stress field in the Permian Basin of West Texas and southeastern New Mexico could help energy companies avoid causing earthquakes associated with oil extraction. Credit: Jens-Erik Lund Snee

Seismic stress map profiles induced earthquake risk for West Texas, New...

Pipeline monument, Cushing, Oklahoma.

Oklahoma’s earthquakes strongly linked to wastewater injection depth

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