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| | AAGG (Site not responding. Last check: 2007-11-04) |
 | | The Andes are the result of compression of the western plate boundary of South America. |
 | | The geodetic network include a number of continuous GPS station plus 250 new benchmarks in Argentina and Chile (in addition to their scientific use, the stations are the core of new, national, space geodesy based geodetic networks in Argentina and Chile). |
 | | This is also seen in the shallow, upper plate seismicity, where two bands of seismicity are observed, one along the very active western plate boundary and a less active one along the easternmost side of the Andes, with a quiet region in between. |
| www.aagg.org.ar /bob.htm (415 words) |
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