Twelve interactive 3D earthquake fault models with no fault names or labels, built for quizzes and lab practicals. Students identify the fault type from what they see.

Included: 12 lettered models (A–L) in shuffled order covering strike-slip, normal, reverse, thrust, blind thrust, oblique and four step-over faults; a 50-question exam on earthquakes and faults (PDF and editable Word); a Canvas-ready import of the exam; and instructor answer keys with explanations. Works offline in any current browser on Windows, Mac or Chromebook, with no installs. Single-instructor license: use in your own classes and post the student models in your course LMS for enrolled students. Created by Robert Leeper, Professor of Geology and former USGS geologist.