Earthquake- induced Geomorphology: A Neotectonic Study at the Front of the Alps (Lake Thun & Aare Valley, Switzerland)

Fabbri, Stefano Claudio; Herwegh, Marco; Schlunegger, Fritz; Volken, Stefan; Möri, Andreas; Anselmetti, Flavio (2015). Earthquake- induced Geomorphology: A Neotectonic Study at the Front of the Alps (Lake Thun & Aare Valley, Switzerland). Miscellanea INGV, 2015(27), pp. 152-155. Istituto Nazionale di Geofisica e Vulcanologia

[img] Text
Misc_Paper_Fabbri_etal.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (1MB) | Request a copy

We present a multi-disciplinary two-step approach to assess the potential for seismic hazard of the Aare valley and perialpine Lake Thun (Switzerland). High-resolution seismic images and multibeam-bathymetric data, complemented by field observations represent the tools to identify potentially active seismogenic fault structures. Several second-order earthquake effects such as subaqueous mass movements, seismites and liquefaction structures have been observed in Lake Thun and ultimately document the seismic activity of the study area. A first investigation of possibly first-order active structures is presented in the scope of this study. Recently acquired bathymetric data in Lake Thun reveal significant morphologic depressions aligning with an observed lineament on land. Furthermore, high-resolution seismic images indicate potential fault structures in Lake Thun. However, their continuation with depth has to be verified with a multichannel seismic campaign, scheduled for March 2015.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Geological Sciences
08 Faculty of Science > Institute of Geological Sciences > Quaternary Geology

UniBE Contributor:

Fabbri, Stefano Claudio; Herwegh, Marco; Schlunegger, Fritz and Anselmetti, Flavio

Subjects:

500 Science > 550 Earth sciences & geology

ISSN:

2039-6651

Publisher:

Istituto Nazionale di Geofisica e Vulcanologia

Language:

English

Submitter:

Stefano Claudio Fabbri

Date Deposited:

18 May 2016 16:49

Last Modified:

18 May 2016 16:49

Related URLs:

Uncontrolled Keywords:

Paleoseismology, Seismic survey, Bathymetry, Geomorphology, Lake Thun

BORIS DOI:

10.7892/boris.82012

URI:

https://boris.unibe.ch/id/eprint/82012

Actions (login required)

Edit item Edit item
Provide Feedback