- Open Access
Assessing potential seismic activity in Vrancea, Romania, using a stress-release model
Earth, Planets and Space volume 58, pages1511–1514 (2006)
Over the last 500 years, an average of five intermediate-depth earthquakes of Mw = 7 and larger have occurred during each 100-year period in Vrancea, Central Romania. We have therefore attempted to assess the long-term seismic hazards in Vrancea using a stress-release (SR) model which models the elastic rebound theory in a stochastic process. The hypocenter catalog, ROMPLUS, provided by the National Institute for Earth Physics (NIEP), was adopted for the study. We only used data on earthquakes located in Vrancea and applied the SR-model to data sets of earthquakes with a magnitude of 7.0 and larger for three different time periods. Renewal models, such as the Brownian and Weibull model, were also applied to the same data set, but these did not perform as well as the SR-model. The SR-model can assess future earthquake probability and has identified that the probability of an earthquake occurring in Vrancea in a 5-year period exceeds 40% by the end of this decade.
Akaike, H., On entropy maximization principle, in Applications of Statisticas, edited by P. R. Krishnaiah, 27–41, North Holland, Amsterdam, 1977.
Bebbington, M. and D. Harte, On the statistics of the linked stress release model, Journal of Applied Probability, 38A, 176–187, 2001.
Fuchs, K., K.-P. Bonjer, G. Bock, I. Cornea, C. Radu, D. Enescu, D. Jianu, A. Nourescu, G. Merkler, T. Moldoveanu, and G. Tudorache, The Romanian eartkquake of March 4, 1977, II. Aftershocks and migration of seismic activity, Tectonophysics, 53, 225–247, 1979.
Imoto, M., Application of the Stress Release Model to the Nankai Earthquake Sequence, Southwest Japan, Tectonophysics, 338, 287–295, 2001.
Lu, C, D. Harte, and M. Bebbington, A linked stress release model for historical Japanese earthquakes: coupling among major seismic regions, Earth Planets Space, 51, 907–916, 1999.
Mârza, V. I., A. Kijko, and P. Mäntyniemi, Estimate of earthquake hazard in the Vrancea (Romania) region, Pageophysics, 136, 143–154, 1991.
Matthews, M. V., W. L. Ellsworth, and P. A. Reasenberg, A Brownian Model for Recurrent Earthquakes, Bull. Seismol. Soc. Am., 92, 2233–2250, 2002.
Nishenko, S. P. and R. Buland, A generic recurrence interval for earthquake forecasting, Bull. Seismol. Soc. Am., 77, 1382–1399, 1987.
Oncescu, M., V. I. Marza, M. Rizescu, and M. Popa, The Romanian earthquake catalogue between 984–1997, Vrancea Earthquakes: Tectonics, Hazard and Risk Mitigation, edited by F. Wenzel et al., pp. 43–47, 1999.
Purcaru, G., The Vrancea, Romania, earthquake of March 4, 1977—a quite successful prediction, Phys. Earth Planet Interiors, 18, 274–287, 1979.
Sakamoto, Y, M. Ishiguro, and G. Kitagawa, Akaike Information Criterion Statistics, Reidel, Dordrecht, 298 pp., 1983.
Shimazaki, K., K. Kawase, K. Satake, Y Suzuki, Y Ogata, M. Imoto, and T. Kumamoto, Renewal recurrence models for large earthquakes in Japan, Abstracts, IUGG 22 General Assembly, B, 182, 1999.
Sperner, B., D. Ioane, and R. J. Lillie, Slab behaviour and its surface expression: new insights from gravity modeling in the SE-Carpathians, Tectonophysics, 382, 51–84, 2004.
Utsu, T., Estimation of parameters for recurrence models of earthquakes, Bull. Earthq. Res. Inst., Univ. Tokyo, 59, 56–66, 1984.
Utsu, T., Sekai no Higaizisin no Hyo, Personal Publication, 243 pp., 1990 (in Japanese).
Wenzel, F., F. P. Lorenz, B. Sperner, and M. C. Oncescu, Seismotectonics of the Romanian Vrancea area, Vrancea Earthquakes: Tectonics, Hazard and Risk Mitigation, edited by F Wenzel et al., pp. 15–25, 1999.
Working Group on Califonia Earthquake Probabilities, Probabilities of large earthquakes in the San Francisco bay region, California: U.S. Geol. Circ. 1053, 51 p., 1990.
Working Group on Califonia Earthquake Probabilities, Earthquake Probabilities in the San Francisco bay region: 2000 to 2030—A summary of Findings, U.S. Geol. Surv. Open-File Report 99–517, 1999.
Zheng, X. and D. Vere-Jones, Application of stress release models to historical earthquakes from North China, Pageoph, 135, 559–576, 1991.
Zheng, X. and D. Vere-Jones, Further applications of the stochastic stress release model to historical earthquake data, Tectonophysics, 229, 101–121, 1994.