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Conference Paper

Historical Analog Earthquake Data in Romania

Authors

Dinescu,  Raluca
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Popa,  Mihaela
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Radulian,  Mircea
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Vanciu-Rau,  Adina
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Chircea,  Andreea
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Ghica,  Daniela
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Citation

Dinescu, R., Popa, M., Radulian, M., Vanciu-Rau, A., Chircea, A., Ghica, D. (2023): Historical Analog Earthquake Data in Romania, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-3561


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020355
Abstract
The seismicity of Romania is characterized by seismic events with magnitudes between 1 ≤ Mw ≤ 7.9 (the largest earthquake produced in Vrancea in 1802) and depths from crustal to intermediate-depth domains. The Vrancea source generates a few significant earthquakes (magnitudes above 7.0) per century. The instrumental period of recording seismic activity in Romania started in 1888 when one of the first seismic stations from Europe was installed in Bucharest, at the Seismic Observatory from Cutitul de Argint. The seismicity recorded before the instrumental period is mostly based on macroseismic observations and early seismic instrumentation. Once the instrumental recording started to operate, over one million paper seismograms had been collected in the National Institute for Earth Physics archive. The archive includes records on smoked and photographic paper and ink recordings since 1900. The analog paper recordings are affected by continuous degradation which is followed by loss of data over time. Since the paper recordings are strongly affected by the passage of time and the storage conditions, currently, work is being done on the inventory of the existing seismograms, their evaluation, and scanning.