[IGSMAIL-6097]: Concepcion Earthquake - SIRGAS Mail of March 04, 2010

[W. Seemueller (EDC)]

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IGS Electronic Mail      08 Mar 09:43:51 PST 2010      Message Number 6097
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Author: Wolfgang Seemueller, Laura Sanchez, DGFI

SIRGAS and the earthquake of February 27, 2010 in Chile

On 27 February 2010, at 06:34 UTC (03:34 local time) an earthquake
(magnitude 8.8) shook the western part of Chile. The epicentre was
located at 35.846?S and 72.719?W in a depth of 35 km. To estimate the
impact of this earthquake in the SIRGAS Reference Frame, the DGFI, as
IGS RNAAC SIR, carried out some preliminary analysis based on the
available GPS stations located in the region. Results show that the
GPS station CONZ moved about 68 cm to the south and 282 cm to the west.
This big displacement reflects the intensity of the earthquake and
provides an idea about its devastating effects. The results presented
here are based on observational data of approximately 14 hours. At the
moment, the SIRGAS Analysis Centres in Argentina (CIMA), Brazil (IBGE),
Colombia (IGAC), Ecuador (IGM), Venezuela (LGFS-LUZ) and Uruguay (SGM)
perform detailed calculations to provide greater certainty about the
movement of the SIRGAS-CON stations after the earthquake.

More details at http://www.sirgas.org/index.php?id=15&L=2

*The station CONZ was installed and is maintained by the German Federal 
Agency for Cartography and Geodesy (Bundesamt fuer Kartographie und 
Geodaesie, BKG), who makes the GPS data available through the International
GNSS Service (IGS) of the International Association of Geodesy (IAG).


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Wolfgang Seemueller ( )  ( )   ***_      ^       -o-   Tel. +49 89 23031-1109
DGFI, Abt.I         | |  | |  *|* o|_   / \/\    / \   Fax: +49 89 23031-1240
Marstallplatz 8     |o|  |o|   |o  |_) /     \/\        email:
D-80539 Muenchen    | |/\| |   |___|  /      seemueller at dgfi.badw-muenchen.de
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