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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:56 |
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Conference: Bucharest University Faculty of Physics 2005 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Bucharest urban seismology
Authors:
Stefan Florin Balan*, Joachim R.R. Ritter**
Affiliation:
* NIRDEP-Magurele, Romania, ** University of Karlsruhe, Germany
E-mail
Keywords:
seismology, Bucharest area
Abstract:
An important project was carried out in the Bucharest area by the National Institute of Research Development for Earth Physics and the Collaborative Research Center 461 (CRC 461) Geophysical Institute from the University of Karlsruhe (Germany) in the period October 2003 – August 2004.
The project consists of an array of 33 stations, uniformly arranged in the city of Bucharest and in the outskirts (Magurele, Voluntari, Otopeni, Buftea, etc.). The stations functioned 24 h a day for a period of 10 months. (The number of functioning stations had a little variation in time, some of them had to be moved because some sites became improper in time) .
The sensors used by the stations were of the type : STS – 2, LE – 3D, 4OT, 3ESP and KS2000.
The performance of continuous recording was possible by using on each station a hard drive of 120 Gb, which gives independence of 3 months. For preventing some accidental electric power stops was used a rechargeable battery on each station. A service was performed for each station every month to avoid accidental stops, which consisted usually of mechanical bumps.
All the recorded data by the stations was saved on DVDs, the final number was around 140.
This project helped gather a large number of seismological data for the city of Bucharest and outskirts from seismic events of magnitude of 4, 3, 2 and ambient noise.
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