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Marine palaeoseismology from very high resolution seismic imaging: the Gondola Fault Zone (Adriatic foreland)

  1. D. Di Bucci1,
  2. D. Ridente2,
  3. U. Fracassi3,
  4. F. Trincardi4,
  5. G. Valensise3

Article first published online: 24 AUG 2009

DOI: 10.1111/j.1365-3121.2009.00895.x

Issue

Terra Nova

Terra Nova

Volume 21, Issue 5, pages 393–400, October 2009

Additional Information

How to Cite

Di Bucci, D., Ridente, D., Fracassi, U., Trincardi, F. and Valensise, G. (2009), Marine palaeoseismology from very high resolution seismic imaging: the Gondola Fault Zone (Adriatic foreland). Terra Nova, 21: 393–400. doi: 10.1111/j.1365-3121.2009.00895.x

Author Information

  1. 1

    Dipartimento della Protezione Civile, Via Vitorchiano, 4, 00189 Rome, Italy

  2. 2

    Istituto di Geologia Ambientale e Geoingegneria, CNR, P.le A. Moro 5, 00185 Rome, Italy

  3. 3

    Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, 00143 Rome, Italy

  4. 4

    Istituto di Scienze Marine, CNR, Via Gobetti 101, 40129 Bologna, Italy

*D. Di Bucci, Dipartimento della Protezione Civile, Via Vitorchiano, 4, 00189 Rome, Italy. Tel.: ++39 06 68204761; e-mail: daniela.dibucci@protezionecivile.it

Publication History

  1. Issue published online: 10 SEP 2009
  2. Article first published online: 24 AUG 2009
  3. Received 13 October 2008; revised version accepted 6 July 2009

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Abstract

We present a marine palaeoseismology analysis of a dense network of very high resolution seismic profiles along the Gondola Fault Zone (GFZ), a right-lateral, E–W-striking, active fault system in the Adriatic foreland. This case-study aims to show how time and space variations in the activity of a dominantly right-lateral fault system can be assessed using the vertical component of slip. The GFZ has been investigated for a length of 50 km. It includes two parallel subvertical fault sets and two main anticlines. The late Middle Pleistocene to Holocene vertical component of displacement along the fault is bell-shaped, suggesting that in the long-term the fault zone acts as a single, kinematically coherent structure. Slip rates are 0–0.18 mm a−1 and vary temporally on individual segments. This variability is consistent with a model in which individual fault segments rupture independently during earthquakes with magnitudes up to 6.4 and 1.3–1.8 ka recurrence intervals.

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