Repetitive fracturing during spine extrusion at Unzen volcano, Japan

Lamb, O. D.; De Angelis, S.; Umakoshi, K.; Hornby, A. J.; Kendrick, J. E.; Lavallée, Y.

doi:https://doi.org/10.5194/se-6-1277-2015

Articles | Volume 6, issue 4

Solid Earth, 6, 1277–1293, 2015

https://doi.org/10.5194/se-6-1277-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Solid Earth, 6, 1277–1293, 2015

https://doi.org/10.5194/se-6-1277-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 6, issue 4

Research article 07 Dec 2015

Research article | 07 Dec 2015

Repetitive fracturing during spine extrusion at Unzen volcano, Japan

O. D. Lamb et al.

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Final revised paper (published on 07 Dec 2015)
Supplement to the final revised paper
Preprint (discussion started on 05 Aug 2015)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC C1015: 'Review: Cyclic fracturing during spine extrusion at Unzen volcano, Japan', Anonymous Referee #1, 27 Aug 2015
- AC C1350: 'Reply to Anonymous Referee #1', Oliver Lamb, 16 Nov 2015
  - AC C1351: 'Coirrection to Reply to Anonymous Referee #1', Oliver Lamb, 16 Nov 2015
RC C1174: 'Review of ‘Cyclic fracturing during spine extrusion at Unzen volcano, Japan’ by Lamb et al., submitted to Solid Earth Discussions', Anonymous Referee #2, 05 Oct 2015
- AC C1352: 'Reply to Anonymous Referee #2', Oliver Lamb, 16 Nov 2015
RC C1262: 'Cyclic fracturing during spine extrusion at Unzen volcano, Japan. Lamb et al.', Anonymous Referee #3, 29 Oct 2015
- AC C1353: 'Reply to Anonymous Referee #3', Oliver Lamb, 16 Nov 2015
EC C1266: 'Editor decision: Revise', Michael Heap, 29 Oct 2015
- AC C1354: 'Reply to Editor comments', Oliver Lamb, 16 Nov 2015

Short summary

In this paper we analyse the seismic record during the extrusion of a lava spine at Unzen volcano, Japan, in 1994. We find two strong groups of similar volcanic earthquakes which, combined with previously published field and experimental observations, we interpret as repetitive fracturing along the margin of the lava spine. This work demonstrates the potential of combining these different approaches for achieving a greater understanding of shallow volcanic processes.