Potresna opazovalnica Ljubljana (Golovec)

Človek že od pradavnine z radovednostjo opazuje dogajanje v naravi in okoli sebe. Pojave preučuje, se jim prilagaja in se uči, kako jih obrniti sebi v prid. Nenadno tresenje trdnih tal pod nogami pa je nedvomno ena najbolj pretresljivih izkušenj, kar jih človek pozna…

V poznih devetdesetih letih prejšnjega stoletja je slovensko mrežo potresnih opazovalnic sestavljalo sedem postaj. Šest jih je bilo opremljenih z digitalnimi seizmografi, povezanimi preko klicnih telefonskih linij. Prenos podatkov je potekal avtomatsko, delovanje pa se je nadzorovalo in instrumente nastavljalo preko osrednjega računalnika na Golovcu v Ljubljani. Od ustanovitve Agencije RS za okolje (ARSO) leta 2001 je bila državna mreža potresnih opazovalnic temeljito posodobljena pod okriljem Urada za seizmologijo in geologijo.

Potresna opazovalnica Ljubljana deluje v sklopu Astronomsko-geofizikalnega observatorija na Golovcu (396 m n. v.). Razdeljena je na dva bližnja sklopa: prvi se nahaja v kleti observatorija, kjer so seizmični instrumenti nameščeni na posebej grajenem betonskem stebru, vpetem neposredno v živo skalo. Drugi del instrumentov je nameščen v 20 m oddaljenem plitvem jašku. Postaja neprekinjeno deluje že od leta 1958 in je pomemben del svetovne mreže za beleženje potresov.

(Vir besedila: ARSO, Urad za seizmologijo in geologijo, Potresna mreža Slovenije, Ljubljana 2006)

Since ancient times, humans observed with curiosity events in nature and around them. They have studied them, adapted to them and learned to turn them to their benefit. The sudden movement of solid ground is certainly one of the most horrible experiences known to humans…

In the late nineties of the last century, the seismic network of Slovenia comprised seven stations. Six of them were equipped with digital seismographs, which were connected over dial phone lines. Data transmission was automatic and the operation was controlled and instruments configured through the central computer on Golovec in Ljubljana. Since the Environmental Agency was established in 2001, it has modernized the national network of seismic stations – which is the responsibility of its Seismology and Geology Office.

Seismic station Ljubljana is at the Astronomical-Geophysical Observatory on Golovec (396 m). It is located in two nearby parts: the first is in the cellar of the observatory building, where the seismic instruments are placed on a specially designed concrete pillar. The second part of the seismic instruments is placed in a 20 m distant shallow shaft. The station has been operating since 1958 and is part of the World seismic network for earthquake recording.

(Source of text: ARSO, Seismology and Geology Office, Seismic Network of Slovenia, Ljubljana 2006)