Articles | Volume 11, issue 5
© Author(s) 2011. This work is distributed underthe Creative Commons Attribution 3.0 License.
Active faults crossing trunk pipeline routes: some important steps to avoid disaster
Abstract. Assessment of seismic strong motion hazard produced by earthquakes originating within causative fault zones allows rather low accuracy of localisation of these structures that can be provided by indirect evidence of fault activity. In contrast, the relevant accuracy of localisation and characterisation of active faults, capable of surface rupturing, can be achieved solely by the use of direct evidence of fault activity. This differentiation requires strict definition of what can be classified as "active fault" and the normalisation of methods used for identification and localisation of active faults crossing oil and natural gas trunk pipelines.