Focal Mechanism Interactive Learning Tool

Explore the relationship between fault geometry, stress orientation, and seismic wave patterns.

Current Fault Properties

P-axis (Maximum compression)
T-axis (Maximum tension)
▤ Compression quadrants
⋅ Tension quadrants

Normal Fault

Hanging wall moves down relative to footwall. Common in extensional settings.

Reverse Fault

Hanging wall moves up relative to footwall. Common in compressional settings.

Strike-slip Fault

Horizontal movement along fault plane. Common along plate boundaries.