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Japan

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.

Cliff face next to a river with markers of different strata in Japanese
Posted inNews

Japan Puts Its Mark on Geologic Time with the Chibanian Age

Tim Hornyak, Science Writer by Tim Hornyak 30 January 20203 July 2023

The newly named period in the Pleistocene identifies a key moment in geological history: the last time Earth’s magnetic poles switched places.

Model of cloud development, charge evolution, and cloud-to-ground lightning initiation in Hokuriku winter clouds
Posted inEditors' Highlights

Microphysics and Positive Lightning in Hokuriku Winter Clouds

by Minghua Zhang 27 December 20199 March 2023

The microphysics of the frequent, and frequently positive, lightning of Hokuriku winter clouds was investigated by systematic, in situ observation of individual precipitation particle type and charge.

The Sun sets over Lake Shinji in western Japan
Posted inResearch Spotlights

How Land Use Affects Nutrient Pollution in a Changing Climate

Elizabeth Thompson by Elizabeth Thompson 4 September 201916 February 2022

As heavy rain falls more frequently, the land alongside a river has a greater effect on the waterway’s nutrient levels—for better or worse.

Diagram showing how groundwater disappears into crustal ruptures formed during an earthquake
Posted inEditors' Highlights

Groundwater Drawn Downward After Kumamoto Quake

by Marc F. P. Bierkens 14 August 20195 December 2022

A unique set of high-frequency groundwater level monitoring reveals a loss of approximately ten million cubic meters of groundwater after a major earthquake.

Photo of a destroyed seawall with Japanese writing
Posted inNews

Earthquakes Shake Up Groundwater Systems

Mary Caperton Morton, Science Writer by Mary Caperton Morton 13 August 201911 May 2022

Increased permeability temporarily boosts water flow.

A map showing vertical motions in southwest Japan 7 years after the 1946 Nankai earthquake
Posted inResearch Spotlights

Déjà Vu: Understanding Subduction Zones’ Cycle of Seismicity

by Terri Cook 3 June 201918 January 2022

A unique geodetic data set from Japan’s Nankai subduction zone offers an unparalleled opportunity to study surface deformation spanning almost an entire seismic cycle.

Black-and-white aerial photo of an atomic bomb cloud
Posted inNews

Hiroshima Bomb Created Asteroid Impact–Like Glass

Lucas Joel by L. Joel 28 May 20199 May 2022

The glass rained from the sky as the bomb annihilated the Japanese city.

The Yaeyama Islands in Okinawa, Japan
Posted inResearch Spotlights

Unraveling the Origin of Slow Earthquakes

by Terri Cook 22 January 20195 October 2022

Different nucleation styles detected in five slow-slip events in the same area of Japan’s Ryukyu subduction zone suggest the physical properties along this tectonic plate interface change over time.

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