Cross-section of Slip Distribution
Detailed Description
Cross-section of slip distribution for the September 29, 2009 M8.1 earthquake in the Samoa Islands region. The strike direction is indicated above each fault plane and the hypocenter location is denoted by a star. Slip amplitude is shown in color and the motion direction of the hanging wall relative to the footwall (rake angle) is indicated with arrows. Contours show the rupture initiation time in seconds. For more discussion, see the USGS Finite Fault page for this event.
Sources/Usage
Public Domain.