• Recommended articles
  • July 6, 2018

Lateral variation of the uppermost oceanic plate in the outer-rise region of the Northwest Pacific Ocean

It has been known that Po waveforms are complicated due to high-frequency scattering within the mantle, but Tonegawa et al. (2018) attempted to retrieve Po-to-s (Pos) waves converted at crust-related interfaces by cross-correlating Po wave coda from the radial and vertical components. As a result, their results successfully showed the retrieval of Pos waves from the basement and oceanic Moho, and also demonstrated the effectiveness of this new approach by revealing lateral variations of Pos-wave emergence and layer-dependent shear wave anisotropy from the outer-rise to seaward regions. Click to view the article Read more

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  • July 2, 2018

Understanding and forecasting phreatic eruptions driven by magmatic degassing

Stix and de Moor (2018) compiled recent studies of phreatic eruptions and proposed two endmembers for phreatic systems. Type 1 systems are characterized by a sealed hydrothermal system. Injection of magmatic fluids causes pressurization of the hydrothermal system and eventual rupture of the seal, generating ballistics and fine ash. For a Type 2 system, input of magmatic fluids into a near-surface hydrothermal system vaporizes liquid water, promoting eruptions which emit… Read more

  • News
  • June 27, 2018

2017 Impact factor for EPS just announced

It is 2.773.   2-year Impact Factor5-year Impact Factor 20172.7732.288 20162.2432.080 20151.8712.038 20141.3281.791 20133.0561.834 20122.9211.703 20110.7951.025 20101.1121.112 20091.0741.233 20080.7940.991 20071.1881.161 View Graph CLARIVATE ANALYTICS (limited to Individual/Institutional Licensee) Read more

  • News
  • May 22, 2018

Editor-in-Chief and Chair introduce EPS in JpGU Meeting 2018

Today, Editor-in-chief (Yasuo Ogawa) and Chair (Kiyoshi Baba) reported about EPS in Journal session “Future of Scientific Publishing in Geosciences” of JpGU Meeting 2018. Abstract of EiC’s presentation Abstract of Chair’s presentation Read more

  • Recommended articles
  • May 15, 2018

Salt shell fallout during the ash eruption at the Nakadake crater, Aso volcano, Japan: evidence of an underground hydrothermal system surrounding the erupting vent

Interaction of magmatic-hydrothermal systems often controls styles and evolution of volcanic activities. Shinohara et al. (2018) revealed continuous existence of a hydrothermal system beneath the crater floor even during magmatic eruptions based on observations of a variety of salt fallouts at Aso volcano, Nakadake crater. Fragile hollow structure of salt fallouts observed during magmatic ash eruption in 2015 indicates their formation by the heating of hydrothermal solution droplets suspended by… Read more

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