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Jessica Pilarczyk (SFU) and collaborator Tina Dura (Virginia Tech) sample sediment cores from rice paddies of the Greater Tokyo Region that contain evidence for an earthquake from 1,000 years ago that potentially originated from a historically unconsidered earthquake source. Credit: SFU

Researchers identify new source for earthquakes and tsunamis in the Greater...

In the time between mega-earthquakes, smaller earthquakes continuously occur between oceanic and continental plates (background earthquakes). Where a lot of energy is released through these earthquakes, we observe coastal mountains that rise faster. In contrast, slow-uplifting coastal areas coincide with fewer background earthquakes. Credit: University of Tübingen

Continuous activity of small earthquakes makes mountains grow

Chunks of exotic green rocks from the mantle erupted from the San Carlos Volcanic Field, Arizona. Credit: James St John

Rock crystals from the deep give microscopic clues to earthquake ground...

Researchers also want to encourage the locals to develop practical evacuation plans to help them feel less pessimistic about their survival odds. Credit: Katsushika Hokusai

Previously unrecognized tsunami hazard identified in coastal cities

Seismogram

Earthquake, tsunami hazards from subduction zones might be higher than current...

Fracking

Local impacts from fracking the Eagle Ford

Experimental setup for 3D seismic model.

3D printed models provide clearer understanding of ground motion

Seismogram

Study reveals the workings of nature’s own earthquake blocker

Glaciers such as the Yakutat in Southeast Alaska, shown here, have been melting since the end of the Little Ice Age, influencing earthquakes in the region. Credit: Sam Herreid

Melting glaciers contribute to Alaska earthquakes

The Cinders lava flow Utah

Unusual earthquakes highlight central Utah volcanoes

Using a method to better locate the source of weak tremors from regions with complex geological features, researchers found that many tremors originate from the shear zone, an area of high fluid pressure, in the Nankai Trough, which is schematically shown here with structures of tectonic plates and fault lines.

Making sense of commotion under the ocean to locate tremors near...

Matthew Siegfried inspects a GPS device, powered by a solar panel at Whillans Ice Plain. Credit: Grace Barcheck/Cornell University

Slow motion precursors give earthquakes the fast slip

Map of the Cascadia subduction zone. Credit: Public Domain

Deep, slow-slip action may direct largest earthquakes and their tsunamis

Overview of the study area and the schematic illustration of interaction of fault motion and the seafloor subsidence. Credit: University of Tsukuba

New model reveals previously unrecognized complexity of oceanic earthquake zones

The outcrop of the pseudotachylyte-bearing fault zone in pelagic sedimentary rocks.

New fault zone measurements could help us to understand subduction earthquakes

Soldiers remove bricks from the road after earthquake in Rongxian county on 25 February 2019. | Credit: IC

Unusually shallow earthquake ruptures in Chinese fracking field

The 'slow earthquakes' that we cannot feel may help protect against the devastating ones

How earthquake swarms arise

Seismogram

Superheated rocks deep underground help explain earthquake patterns

San Andreas Fault

Deep underground forces explain quakes on San Andreas Fault

Surface displacement mapped using InSAR satellite imaging data. Along the fault, the ground was either raised (southeast) or collapsed (northwest). The star designates the epicentre. Credit: Jean-François RITZ et al

The Le Teil earthquake provides new insights on seismic risk in...

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