The
Community Internet Intensity Map is a U.S. Geological Survey project
to collect information about ground shaking following significant
earthquakes.
Los
Angeles Basin Model: Prof. Jeroen Tromp uses a 3-D model
of the Los Angeles Basin developed with Prof. John Shaw (Harvard)
to simulate strong ground motion. The contours show the depth-to-basement.
The basin is more than 8 km deep at its lowest point, indicated
in dark blue. The Southern California coastline is referenced
by the white line; shaded relief indicates topography.