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Lava fountains at Kilauea in Hawaii created a spatter cone, which was estimated to be 180 feet tall in this June 2018 photo. Credit: U.S. Geological Survey

Hawai’i earthquake swarm caused by magma moving through ‘sills’

The schematic of the proposed method. Locations of interest are shown with maximum inundation extent on the training set. S-net station segments are marked with colored lines. Credit: Nature Communications (2022). DOI: 10.1038/s41467-022-33253-5

Deep learning can predict tsunami impacts in less than a second

A seismogram of 2011 Tōhoku earthquake and tsunami recorded at Weston Observatory in Massachusetts, USA. Credit: Image from Wikimedia Commons.

Finding faults deeply stressful

Seismogram

Japan’s Next Great Earthquake

Fig. 1: The giant ash cloud that erupted from Hunga Tonga–Hunga Ha'apai, taken by the Himawari-8 satellite Credit: EyePress News/Shutterstock

Shockwave caused by Tonga underwater eruption may help scientists predict future...

The blue path illustrates a core-penetrating seismic wave moving through a region in the outer core, where the seismic speed has increased because a low-density flow has moved into the region. Credit: Ying Zhou

Seismic waves from earthquakes reveal changes in the Earth’s outer core

Map shows location of the Shumagin Gap, location of the 2020 Simeonof and 2021 Chignik earthquakes. Map courtesy Alaska Earthquake Center.

Major 2020 Alaska quake triggered neighboring 2021 temblor

Seismogram

A swarm of 85,000 earthquakes at the Antarctic Orca submarine volcano

Earthquake fracture energy relates to how a quake stops

Credit: UC Davis

Ridgecrest shows how earthquakes damage Earth’s crust

The Kumano Pluton in southern Japan appears as a red bulge (indicating dense rock) in the center of a new 3D visualization by The University of Texas at Austin. The pluton is large enough to interfere with the nearby Nankai subduction zone and the region’s earthquakes. Credit: Adrien Arnulf

Big data imaging shows rock’s big role in channeling earthquakes in...

A magnitude 8.2 earthquake was “hidden” within a magnitude 7.5 earthquake in 2021, sending a mysterious tsunami around the world, according to a new study in Geophysical Research Letters. Credit: Zhe Jia and AGU

Hidden magnitude-8.2 earthquake source of mysterious 2021 global tsunami

A series of earthquakes and aftershocks shook the Ridgecrest area in Southern California in 2019. Distributed acoustic sensing (DAS) using fiber-optic cables enables high-resolution subsurface imaging, which can explain the observed site amplification of earthquake shaking. Credit: Yang et al., 2022

Fiber-optic cables can produce high-resolution underground maps

On September 29, 2009, a tsunami caused substantial damage and loss of life in American Samoa, Samoa, and Tonga. The tsunami was generated by a large earthquake in the Southern Pacific Ocean. Credit: NOAA

Earthquake depth impacts potential tsunami threat

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

Using sparse data to predict lab earthquakes

A ruptured fault in Searles Valley, California, after the 2019 Ridgecrest earthquakes. A study of earthquakes led by The University of Texas at Austin found that seismic shockwaves are shaped by jagged faults and the debris wedged between them. Credit: Ben Brooks/USGS

Seismic shockwave pattern may be redirecting earthquake damage

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

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