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Journal of Geography (Chigaku Zasshi), 2019 Vol.128 No.5

2019 Vol.128 No.5

Separation of Inelastic Deformation Based on Crustal Deformation before and after the 2011 Tohoku-oki Earthquake

East–West strain rate distribution in central Japan before (upper row) and after (lower row) the 2011 Tohoku-oki earthquake based on continuous GPS observation (left on each row). Purple lines denote active fault traces. East–West strain is a representative signal associated with both subduction of the Pacific plate and tectonic deformation in central Japan. Plots at the middle and on the right are long- and short wavelength components of the strain rate distribution. While the long-wavelength pattern was reversed before and after the earthquake, a persistent localized contraction is identified around the northern Niigata–Kobe Tectonic Zone delineated by a dashed line, indicating contribution of inelastic deformation.

Acknowledgements

We used the F3 daily coordinate solution of GEONET published by the Geospatial Information Authority of Japan for the analysis.


(Takeshi SAGIYA and Angela MENESES-GUTIERREZ)


Special Issue: Crustal Dynamics (Part I): From a Macroscopic View

Overview of the Special Issue
 “Crustal Dynamics (Part I): From a Macroscopic View”

Yukitoshi FUKAHATA, Kiyokazu OOHASHI,
Youichiro TAKADA and Akiko TANAKA

Journal of Geography (Chigaku Zasshi), 2019, 128(5), 681.

DOI:10.5026/jgeography.128.681

Introduction to the Special Issue
 “Crustal Dynamics (Part I): From a Macroscopic View”

Yukitoshi FUKAHATA, Kiyokazu OOHASHI,
Youichiro TAKADA and Akiko TANAKA

Journal of Geography (Chigaku Zasshi), 2019, 128(5), 685.

DOI:10.5026/jgeography.128.685

Crustal Strain Rates in the Japan Islands: A Comprehensive Understanding
 of Geodetic and Geological/Geomorphological Data (Review Article)

Takeshi SAGIYA and Makoto OTSUBO

Journal of Geography (Chigaku Zasshi), 2019, 128(5), 689.

DOI:10.5026/jgeography.128.689

Low-temperature Thermochronology and Its Application to Tectonics
 in the Shallow Crust (Review Article)

Shigeru SUEOKA and Takahiro TAGAMI

Journal of Geography (Chigaku Zasshi), 2019, 128(5), 707.

DOI:10.5026/jgeography.128.707

Flow of Lower Crust and Upper Mantle Inferred
 from Geological and Geophysical Observations (Review Article)

Jun MUTO and Masanori KIDO

Journal of Geography (Chigaku Zasshi), 2019, 128(5), 731.

DOI:10.5026/jgeography.128.731

Fracturing and Formation of Ductile Shear Zones in the Continental Lower Crust
 (Review Article)

Takamoto OKUDAIRA and Tsuyoshi TOYOSHIMA

Journal of Geography (Chigaku Zasshi), 2019, 128(5), 747.

DOI:10.5026/jgeography.128.747

Origin and Distribution of Geofluids and Their Roles on Geodynamics
 (Review Article)

Hikaru IWAMORI, Yohei YUKUTAKE,
Yoshihisa IIO and Hitomi NAKAMURA

Journal of Geography (Chigaku Zasshi), 2019, 128(5), 761.

DOI:10.5026/jgeography.128.761

Estimating Crustal Fluid Flux and Continuous Monitoring
 of Magmatic and Seismic Activities Using Helium Isotopes (Review Article)

Noritoshi MORIKAWA, Fumiaki TSUNOMORI,
Kohei KAZAHAYA and Norio MATSUMOTO

Journal of Geography (Chigaku Zasshi), 2019, 128(5), 785.

DOI:10.5026/jgeography.128.785

Stress Tensor Inversion Using Seismological Data (Review Article)

Takaki IWATA, Keisuke YOSHIDA and Yukitoshi FUKAHATA

Journal of Geography (Chigaku Zasshi), 2019, 128(5), 797.

DOI:10.5026/jgeography.128.797

Modeling Deformation and Stress States in the Island-arc Crust Considering
 Heterogeneous Rheological Structure (Review Article)

Bunichiro SHIBAZAKI and Ryohei SASAJIMA

Journal of Geography (Chigaku Zasshi), 2019, 128(5), 813.

DOI:10.5026/jgeography.128.813

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