Magnitude 8.9 - NEAR THE EAST COAST OF HONSHU, JAPAN

2011 March 11 05:46:23 UTC

Rupture imaging from the backprojection of P-waves (preliminary results)

A dense station deployment can be used as an antenna to track the energy radiated by the propagating rupture along the fault. This energy, coherently recorded at the stations, is back propagated to its most likely position in the source region. The result is a time-evolving image of the rupture as it starts from the epicenter and propagates on the fault.

Global Array
Global Array
(Low-frequency image) 		USArray
USArray
(High-frequency image)