2004/12/26 Sumatora earthquake



Seismicity distribution

Data from PDE by USGS : monthly 1964 - 2004 Feb.: weekly Mar.- Nov. 24 : QED after Nov.25.
The red rectagle is the source fault model by Yamanaka.
The brawn line shows the plate boundary.



CMT solutions by Harvard university are used to draw P & T axes.



Shallow seismiciy in the wolrd(1964-2004/12/27)