Table 2.
Statistics of the semimajor and semiminor axes of the error ellipses at 99% confidence corresponding to the horizontal displacements estimated by GPS. amin minimum value of the semimajor axis; amean mean value of the semimajor axis; amax maximum value of the semimajor axis; bmin minimum value of the semiminor axis; bmean mean value of the semiminor axis; bmean mean value of the semimino axis; n number of points.
| Period | amin (mm) | amean (mm) | amax (mm) | bmin (mm) | bmean (mm) | bmax (mm) | n |
|---|---|---|---|---|---|---|---|
| February–July 2008 | 1.41 | 2.58 | 2.83 | 1.41 | 2.25 | 2.83 | 17 |
| March–July 2013 | 1.35 | 1.50 | 1.95 | 1.11 | 1.25 | 1.59 | 57 |
| March 2013–August 2014 | 1.62 | 1.88 | 2.40 | 1.23 | 1.58 | 2.01 | 57 |
| March 2013–September 2015 | 1.02 | 1.09 | 1.05 | 0.63 | 0.86 | 1.14 | 57 |
| March 2013–September 2016 | 1.02 | 1.08 | 1.26 | 0.63 | 0.73 | 1.14 | 57 |