Investigations unveil Holocene thrusting for onshore Portugal

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Abstract

A current paleoseismological investigation of the Lower Tagus Valley (LTV), near Lisbon, Portugal, brought to light unprecedented information about the seismotectonics of this area of important onshore intraplate seismicity Through a combination of geomorphic, geological, and geophysical tools, a site with evidence for recent deformation was tracked down and selected for detailed study. Upon trenching, a very clear exposure of a thrust fault can be observed. Its last episode of deformation was constrained with carbon 14 to postdate A.D. 365.

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