10
100
1,000
10-4 10-2 100
102
104
106
108
1010
10
10,000 -12
10
10-10 10-8 10-6 10-4 10-2 100
100
1,000
10,000
102
104
106
Hydraulic diffusivity, in square meters per second
VOLCANO DEFORMATION–
Geodetic Monitoring Techniques
By Daniel Dzurisin
U.S. Geological Survey graphics
Depth below water table,
in feet
1
r
ou
1 h ay
1 d nth
o
r
1 m yea ars
1 ye rs
a s
10 0 ye ear rs
10 00 y yea ars s
1,0 ,000 0 ye ear
10 0,00 on y
10 milli
1
Depth below water table,
in meters
Hydraulic diffusivity, in square feet per day
10-6