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SLR-Mail No.1843

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Date:2010-03-06 12:20:00
Sender:Bernd Sierk, BKG/TIGO <slrmail@dgfi3.dgfi.badw-muenchen.de>
Subject:[SLR-Mail] No. 1843: 7405 CONL down after earthquake
Author:Bernd Sierk, BKG
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SLR Electronic Mail 2010-03-06 12:20:00 UTC Message No. 1843
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Author: Bernd Sierk, BKG/TIGO
Subject: 7405 CONL down after earthquake

Dear colleagues,

as you may have heard in the media, Concepci=F3n has been struck by a
major eathquake (magnitude 8.8) last Saturday at 3:34 local time. I
am glad to tell you that all TIGO personnel of whom I have heard
since the earthquake (all three Germans and 6 out of 16 Chileans) and
their families are doing well. I do not expect any bad news from the
remaining 10 colleagues, as the damages in Concepci=F3n are rather
limited to a few buildings and places. In general we have been very
lucky, much more than those in the devastated areas closer to the
coast. This also applies to the TIGO observatory, which has suffered
some damage, but seems remarkably intact. The two GPS receivers have
been recording at 1 sec. rate without interruption during the event
and thereafter. The superconducting gravity meter and the seismometer
are also running continuously as they are supplied by solar batteries
(and generators at night). The VLBI antenna has not moved at all and
shows no signs of damage, but a detailed assessment is pending. The
SLR unit has probably been affected most: The telescope has been
displaced by about 15 cm but there is no obvious optical damage. As
the laser container has jumped back and forth during the earthquake
(according to the observer on duty) the laser table, connected to the
basement, has been torn out of its socket and fell over. Amazingly
the optical components seem to be undamaged, but I´ll have a closer
look once the table is back in place. It is difficult to say for how
long 7405 will be down. There is still a curfew imposed on the city,
which allows to be on the streets only from 12:00 to 18:00, which
prevents TIGO´s personnel to come to work. I optimistically estimate
3-4 months before SLR operation may start again. Some of you
(including me) may wonder what all this means for the ILRS workshop,
planned to be carried out at Concepci=F3n between January 17 and 22,
2011. I ask for patience to allow me to monitor the situation here.
If the necessary infrastructure recovers quickly, I am sure we can
still organize the workshop, which may give a sign of hope to the
station, the University of Concepci=F3n and the region.

For email communication, please use (temporarily) the following
address: bsierk@gmail.com
The servers at UdeC are still down and my usual email address
(sierk@tigo.cl) is currently not operative (just got electricity and
internet at home).

Of course the TIGO-team regrets the loss of data, but at the same
time we are glad to be still around and are grateful to those who
have been worried about us.

Best wishes,

Bernd Sierk



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From: slrmail@dgfi3.dgfi.badw-muenchen.de

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