Releasing step-over · transtension. Two left-lateral fault strands are offset, and the second one picks up where the first ends, stepping to the left. Oblique-normal faults branch from the end of each strand and die out where they intersect the strand on the opposite side. Across the step-over between them, the blocks on either side pull away from each other.

An interactive 3D model of the full earthquake cycle on this fault: rotate, zoom and step through strain, rupture, seismic waves and offset. Works offline in any current browser on Windows, Mac or Chromebook, with no installs.

Want all 12 models and the Instructor Guide? The Educators Bundle is the better value.

Classroom license: for use in the purchaser’s own classes, including posting in your course LMS for enrolled students. No redistribution or resale.