Journal metrics

Journal metrics

  • IF value: 4.165 IF 4.165
  • IF 5-year value: 4.075 IF 5-year 4.075
  • CiteScore value: 4.28 CiteScore 4.28
  • SNIP value: 1.501 SNIP 1.501
  • SJR value: 1.060 SJR 1.060
  • IPP value: 4.21 IPP 4.21
  • h5-index value: 29 h5-index 29
  • Scimago H index value: 27 Scimago H index 27
Discussion papers
https://doi.org/10.5194/se-2018-103
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-2018-103
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 01 Oct 2018

Research article | 01 Oct 2018

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Solid Earth (SE).

The Ulakhan fault surface rupture and the seismicity of the Okhotsk-North America plate boundary

David Hindle1, Boris Sedov2, Susanne Lindauer3, and Kevin Mackey4 David Hindle et al.
  • 1Georg-August-Universität Göttingen, Goldschmidtstr. 3, 37077 Göttingen, Germany
  • 2University of Magadan, Geological Institute, Magadan, Russia
  • 3Klaus-Tschira-Archaeometrie Zentrum, 68159 Mannheim, Germany
  • 4Michigan State University, Dept. of Geological Sciences, East Lansing, Michigan, USA

Abstract. New field work, combined with analysis of aerial photographs, high resolution, digital elevation models, and satellite imagery has identified an active fault that is traceable for ∼90km across the Seymchan Basin, and is part of the Ulakhan fault system, which is believed to form the Okhtotsk-North America plate boundary. Age dating of alluvial fan sediments in a channel system that is disturbed by and abandoned due to fault activity, suggest the current scarp is a result of a series of large earthquakes (≥Mw 7.5) that have occurred since ∼11.5ka. A possible offset channel edge associated with these sediments yields a slip rate of ∼5–6mmyr−1, in broad agreement with rates suggested from global plate tectonics and other theoretical studies. Our results clearly identify the Ulakhan fault as the Okhotsk-North America plate boundary, and show that tectonic strain release is strongly concentrated on the boundaries of Okhotsk. In the light of our results, the likelihood of recurrence of Mw 7.5 earthquakes is high, raising serious questions of seismic hazard across the region.

David Hindle et al.
Interactive discussion
Status: final response (author comments only)
Status: final response (author comments only)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Login for Authors/Topical Editors] [Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement
David Hindle et al.
David Hindle et al.
Viewed  
Total article views: 418 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
378 36 4 418 1 1
  • HTML: 378
  • PDF: 36
  • XML: 4
  • Total: 418
  • BibTeX: 1
  • EndNote: 1
Views and downloads (calculated since 01 Oct 2018)
Cumulative views and downloads (calculated since 01 Oct 2018)
Viewed (geographical distribution)  
Total article views: 417 (including HTML, PDF, and XML) Thereof 417 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited  
Saved  
No saved metrics found.
Discussed  
Latest update: 14 Dec 2018
Publications Copernicus
Download
Short summary
On one of the least studied boundaries between tectonic plates, one which moves very similarly to the famous San Andreas fault in California, we have found the traces of earthquakes from the recent past, but before the time when human history could record them. What this means is that we are a little more sure that the fault is still the place where movement between the plates takes place, and when it happens again, there could be dangerous earthquakes.
On one of the least studied boundaries between tectonic plates, one which moves very similarly...
Citation
Share