Fig. 2.
From: Rapid source characterization of the 2011 Mw 9.0 off the Pacific coast of Tohoku Earthquake
Maps of the initial (a, b) and updated (c, d) USGS NEIC finite fault slip distributions of the Tohoku Earthquake. Panels (a) and (c) show source time functions of each solution. In each map panel (b) and (d), the inverted slip distribution is shown within the assumed rectangular fault geometry, colored by slip magnitude, and contoured every 4 m. Regions with slip below 4 m are partially transparent. The slip vector of each subfault is represented with a black arrow, also scaled by slip magnitude.