A map of Vancouver Island showing the locations of seismic instruments considered by the research group. The grey shaded region delineates where slow earthquakes occur.

Researchers find evidence to explain behavior of slow earthquakes

Fault zone with broken rock inside stippled lines and faulting directions of each rock segment outlined by half arrows. Photo credit: Henrik Drake. Illustration: Mikael Tillberg.

A new method for dating ancient earthquakes

seismogram

Magnitude of Great Lisbon Earthquake may have been lower than previous...

The ‘slow earthquakes’ that we cannot feel may help protect against...

Seismogram

Analyzing seismic patterns to forecast the magnitude of the largest earthquake...

Kilauea

California is famous for earthquakes, wildfires and Volcanoes

Researchers employed 20 kilometers (pink) of a 51-kilometer undersea fiber-optic cable, normally used to communicate with an off-shore science node (MARS, Monterey Accelerated Research System), as a seismic array to study the fault zones under Monterey Bay.

Underwater telecom cables make superb seismic network

The shallow water buoy can detect small movements and changes in the Earth's seafloor that are often a precursor to deadly natural hazards, like earthquakes, volcanoes and tsunamis. Credit: University of South Florida

New technology developed to improve forecasting of Earthquakes, Tsunamis

The excavation of trench B at the Leigh Lake site. Shown in the photo (from left to right) are Glenn Thackray, Cooper Brossy, and Darren Zellman. Credit: Mark Zellman

Evidence of two quakes extends rupture history in Grand Tetons National...

This simplified hydrology model shows the subsurface of Oklahoma. The Arbuckle Group is the area where most wastewater is injected. This layer allows fluid to move easily to distant areas. The added water causes stress as it travels and can cause earthquakes when it encounters pre-existing faults. Credit: University of Oklahoma

Geoscientists hope to make induced earthquakes predictable

Earthquake impact can be affected by seasonal factors, historical study shows

Studying the snowmelt episodes of a Pyrenean river with a seismometer

earthquake in Southern California

Distinguishing earthquake foreshocks and aftershocks

Visualization of the modelled coupled earthquake and tsunami across Palu Bay, from Ulrich et al., 2019: Left: Seismic waves being generated while the earthquake propagates southward in a ‘superfast’ manner. Warm colours denote higher movements across the geological faults and higher ground shaking (snapshot after 15 seconds of earthquake simulation time). Right: The movements of the earthquake beneath the bathtub shaped Palu Bay generate a ‘surprise’ tsunami (snapshot of the water waves aftee 20s of simulation time of the tsunami scenario). Image credit: LMU.

Role of earthquake motions in triggering a ‘surprise’ tsunami

Hydraulic fracturing (Creative Commons photo)

Understanding the link between fracking and earthquakes

Map of seismic sensors (green triangles) around the epicenter (red star) of one of the earthquakes near the city of Tsukuba, Ibaraki Prefecture. Credit: 2019 Satoshi Ide

Earthquake study casts doubt on early warnings but hints at improved...

A picture of Mt. Aso, including locations of eastern and western clusters. Credit: Aso Geopark Promotion Council

Underground links between quakes and eruptions of Japan’s biggest active volcano

Jesse leaning against the fresh fault scarp of the Kekerengu fault, next to some of the curved slickenlines. Credit: Professor Tim Little

Rock scratches hint at future quakes

Marine Denolle (right) and her team, including Jiuxun Yin (left) and Brad Lipovsky, created numerical models to predict an earthquake’s final magnitude 10 to 15 seconds faster than today’s best algorithms. Credit: Stephanie Mitchell/Harvard Staff Photographer

Predicting the strength of earthquakes

Wells drilled into Oklahoma's Arbuckle formation inject wastewater (1) which then disperses through the rock. As it spreads, the wastewater can trigger earthquakes in fault zones (2), but their size depends on the amount injected and the rock's properties. The new model can predict quake probabilities by the quantity of wastewater injected.

Predicting earthquake hazards from wastewater injection

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