Active and Inactive Faults

Following Tomas post letโ€™s stay a little longer on the Corinth Canal. The 6 km long famous Corinth Canal despite being an amazing feat of engineering, since it was constructed 120 year ago, itโ€™s also a geology field trip favourite because it is basically a MEGA TRENCH.

More than 40 faults can be identified some of them offsetting the entire sedimentary column, whereas others are confined within the lower sediments. Therefore, this photo shows a very nice example of an active and inactive fault within the same outcrop. You can rarely see something like that and this is a unique site where everybody can see and comprehend it.

View of an active and inactive fault

View of an active and inactive fault

Faults also die.

Faults also die.

It shows also that faults die. This is very important because there are numerous faults in the crust, however the majority of them are inactive (e.g. can not give an earthquake today, but they did so in the past). So for earthquake geologists their first major goal is to identify which of the faults they map are active (e.g. can generate earthquakes today and represent seismic sources).

Faults also die.

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Ioannis Papanikolaou

is a Senior Lecturer in the Mineralogy-Geology Lab of the Agricultural University of Athens, member of the Aon Benfield-UCL Hazard Research Centre and Hons Research Fellow at the Dept of Earth Sciences at University College London (UCL).

See all posts Ioannis Papanikolaou


  • Mary Grace Amancio | August 14, 2014|10:09 (UTC)

    ah ok … thank you ๐Ÿ™‚

  • Justine Riva Unson | August 30, 2014|09:43 (UTC)

    thanks for giving the definition ๐Ÿ™‚

  • milleni v cerda | September 12, 2014|08:38 (UTC)

    ah thank you for definition

  • caira gomez | August 17, 2015|10:58 (UTC)

    eto lang ba?

  • caira gomez | August 17, 2015|11:00 (UTC)

    wala bang inactive na faults line ha kasi sabi nila merong inactive at active na faults line hello duh?

  • maria anna | October 9, 2015|00:26 (UTC)

    Thanks upo

  • lei | August 10, 2016|08:55 (UTC)

    active faults are structure along which we expect displacement to

  • rovelynpagas | September 8, 2016|02:30 (UTC)


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