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Japan

Margaritifera laevis shells on the bottom of a river.
Posted inNews

Freshwater Mussel Shells May Retain Record of Alpine Snowpack

by Stacy Kish 4 October 202129 March 2023

A new study explores a possible proxy for seasonal freshwater input that could elucidate changes in alpine snowpack as the planet warms.

Kominato Beach and Kopepe Beach, part of the Ogasawara Islands located in Japan
Posted inResearch Spotlights

First Report of Seismicity That Initiated in the Lower Mantle

by Jack Lee 19 August 20214 August 2023

A 4D back-projection method revealed that aftershocks of the 2015 earthquake beneath the Ogasawara (Bonin) Islands occurred as deep as about 750 kilometers.

Two maps of the Japanese islands showing distribution of volcanoes (top) and areas of large crustal earthquakes analyzed in this study (bottom).
Posted inEditors' Highlights

The First Systematic Search for Enervated Earthquakes

by Satoshi Ide 11 May 20218 December 2022

High quality data from Japan provides answers on where and when “enervated” earthquakes occur.

Series of six maps showing the location and observations of the typhoon
Posted inEditors' Highlights

Radar Observations of a Tornado Associated with Typhoon Hagibis

by Suzana Camargo 23 October 202025 February 2022

Analysis of tornadogenesis processes on a shallow supercell associated with Typhoon Hagibis using finely resolved rapid-scan radar observations at a very close range.

A scene from a Japanese picture scroll depicting the 1855 Edo earthquake
Posted inNews

Kabuki Actor’s Forgotten Manuscript Yields Clues About 1855 Quake in Japan

Tim Hornyak, Science Writer by Tim Hornyak 8 September 20206 December 2021

Researchers analyzed a survivor’s account of the disaster to better understand future temblors.

Detector and lightning locations for two observed events in Kanazawa, Japan
Posted inEditors' Highlights

Lightning Discharge Type Linked to Terrestrial Gamma‐Ray Flashes

by Minghua Zhang 1 September 202013 February 2023

For the first time, the connection between energetic in cloud pulse and terrestrial gamma‐ray flashes is confirmed in the Gamma-Ray Observation of Winter Thunderclouds experiment in Japan.

Tokyo skyline
Posted inNews

The First Undeniable Climate Change Deaths

by D. Merino 18 August 20206 December 2021

In 2018 in Japan, more than 1,000 people died during an unprecedented heat wave. In 2019, scientists proved it would have been impossible without global warming.

Maps showing the data assimilated wavefields at 30 and 120 seconds on the left and the forecasted future wavefields at 200 seconds on the right
Posted inEditors' Highlights

Real-time Ground Motion Estimation for Large Earthquakes

by M. Yamada 31 July 20207 March 2023

Advanced computing technology can be used to forecast ground shaking from earthquakes and provide an early warning in real time.

YoriMawari-nami wave in 2013
Posted inNews

Submarine Canyons Breed Megawaves in Japan

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 21 February 202025 March 2024

The canyons act like a prism, focusing waves into mammoths of destruction.

A fireball in the night sky
Posted inNews

Tiny Fireballs May One Day Reveal Unseen Asteroids

Nola Taylor Redd, Science Writer by Nola Taylor Tillman 20 February 202015 February 2022

The tiny fireball that flew over Japan in 2017 came from an asteroid that could threaten Earth in 10 million years or so. Scientists are trying to use these little meteors to hunt larger objects.

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