Dispersion Maps

Dispersion maps at periods from 8 to 70 seconds for Rayleigh waves and 8 to 25 seconds for Love waves. The grey contour indicates resolution better than 200 km and regions with resolution less than 1000 km are shaded grey. Please note the different color scales and reference wave speeds.

Rayleigh wave group speed maps

8 sec.   10 sec.   12 sec.   14 sec.   16 sec.   18 sec.   20 sec.   25 sec.  

30 sec.   35 sec.   40 sec.   45 sec.   50 sec.   55 sec.   60 sec.   65 sec.   70 sec.   75 sec.  

Rayleigh wave phase speed maps

8 sec.   10 sec.   12 sec.   14 sec.   16 sec.   18 sec.   20 sec.   25 sec.  

30 sec.   35 sec.   40 sec.   45 sec.   50 sec.   55 sec.   60 sec.   65 sec.   70 sec.   75 sec.  

Love wave group speed maps

8 sec.   10 sec.   12 sec.   14 sec.   16 sec.   18 sec.   20 sec.   25 sec.  

Love wave phase speed maps

8 sec.   10 sec.   12 sec.   14 sec.   16 sec.   18 sec.   20 sec.   25 sec.