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Record-breaking ocean drilling reveals why Japan’s 2011 tsunami was so deadly

These sections through the seismic volume show the geological structures that record the history of the crater. Illustration: Karstens et al. 2023

Mystery of volcanic tsunami solved after 373 years

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

Field area and glacier retreat due to calving. (A) Location of Börgen Bay at the West Antarctic Peninsula. Bathymetry from ETOPO 1 global relief model (74). (B) Bathymetry of Börgen Bay from multibeam echosounder data and coastline/topography from Landsat imagery (see Materials and Methods). Dots mark locations of conductivity-temperature-depth (CTD) profiles used here, with profiles taken before (red) and after (blue) the calving event. (C) Landsat images of the William Glacier front from (top) 17 January 2020 and (bottom) 24 January 2020. In both panels, the orange line marks the glacier front on 17 January 2020 to highlight the retreat of the glacier between those dates. Credit: Science Advances (2022). DOI: 10.1126/sciadv.add0720

Underwater tsunamis created by glacier calving cause vigorous ocean mixing

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...

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

Traces of paleotsunami at the lowland of the Ube River, Noda Village. The Sanriku Coast has been hit by tsunamis throughout its history, leaving behind tsunami deposits. Credit: Tohoku University

New analysis of tsunami deposits paints a clearer picture of Sanriku’s...

The aftermath of a 2010 tsunami in Chile, which was analyzed in a new study in JGR Solid Earth. Earlier warnings made possible by the study of tsunami-generated magnetic fields could better prepare coastal areas for impending disasters. Credit: International Federation of Red Cross and Red Crescent Societies

Tsunamis’ magnetic fields are detectable before sea level change

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

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...

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...

An overview of tsunami prediction with AI Credit: Tohoku University, University of Tokyo, and Fujitsu Laboratories

Fujitsu leverages world’s fastest supercomputer and AI to predict tsunami flooding

Map of the Cascadia subduction zone. Credit: Public Domain

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

How water in the deep Earth triggers earthquakes and tsunamis

Credit: Geological Society

New tsunami risk identified in Indonesia

Japan's risk of giant tsunamis may have grown when the angle of a down-going slab of ocean crust declined. Top: ocean crust (right) slides under continental crust at a steep angle, causing faulting (red lines) in seafloor sediments piled up behind. Bottom: as the angle shallows, stress is transferred to sediments piled onto the continental crust, and faults develop there. Blue dots indicate resulting earthquakes. At left in both images, the change in angle also shifts the region where magma fueling volcanoes is generated, pushing eruptions further inland. Credit: Adapted from Oryan and Buck, Nature Geoscience 2020

Shifts in deep geologic structure may have magnified great 2011 Japan...

Scientists used the model to calculate seismic risk in the L.A. Basin

Source of Indonesian earthquakes and tsunamis located

Anak Krakatoa eruption

Tsunami unleashed by Anak Krakatoa eruption was at least 100m high

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

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