SOURCE MECHANISM OF THE 1994 SEPTEMBER 1 ML = 5.2 BITOLA EARTHQUAKE

Vera Čejkovska, Lazo Pekevski, Dragana Černih

Abstract


A b s t r a c t: Тhe source mechanism of the earthquake occurred on September 1, 1994, with local magnitude ML = 5.2, in the Bitola region in the south-western part of the Republic of Macedonia, was studied in details. The studies included P-nodal planes determination for the earthquake, synthesizing of P-wave traces with the two P-nodal planes taken separately as fault planes, locating of adjacent earthquakes, as well as a comparison of all the obtained results with the results of the previous macroseismic studies of the earthquake and the neotectonic conditions in the Bitola region. A normal left-lateral fault striking toward WNW was confirmed as a source mechanism of the earthquake. That fault can be associated with the neotectonic Pelister fault, the last being the northern border of the mountain Baba.


Keywords


earthquake source mechanism; dislocation model; synthetic seismogram

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References


V. Čejkovska, L. Pekevski, Hypocentre location and fault-plane solution for the 1994 September 1 Bitola earthquake. Друштво за наука и уметност, Bitola. Едиција – Монографски изданија, 38 (1996), pp. 60-66 (In Macedonian).

V. Čejkovska, B. Hristovski, N. Vasilevski, Macroseismic effects and isoseismal map of the 1994 September 1 Bitola earthquake. Друштво за наука и уметност, Bitola. Едиција, – Монографски изданија, 38 (1996), pp. 67–72 (In Macedonian).

D. Černih, L. Pekevski, V. Čejkovska, Observed seismic activity after the Bitola earthquake (September 1994 – September 1996). Друштво за наука и уметност, Bitola. Едиција, – Монографски изданија, 38 (1996), pp. 73–89 (In Macedonian).

Б. В., Костров, Механика очага тектонического землетрясения. Наука, Москва (1975).

K. Aki, P. G. Richards, Quantitive Seismology. Theory and Methods. Vols. I, II. W. H. Freeman and Company, San Francisco (1980).

P. Reasenberg, D. Oppenheimer, FPFIT, FPPLOT and FPPAGE: Fortran computer programs for calculating and displaying earthquake fault-plane solutions. U.S. Geological Survey. Open-file Report No. 85–739 (1985).

EDR No.9-94. U.S. Department of the Interior, Geological Survey.

UNDP/UNESCO, Tables des temps de propagation des ondes séismiques (Hodochrones) pour la région des Balkans. MANUEL D‘UTILISATION. Strasbourg (1972), p. 55.

В. И. Мячкин, Б. В. Костров, Г. А. Соболев, О. Г. Шамина, Основы физики очага и предвестники землетрясения. Садовский, М. А., ответственнй редактор, Сб. Физика очага землетрясения, Наука, Москва (1975).

L. Pekevski, Propagation of the Seismic Waves of Local and Regional Earthquakes. Univerzitet „Sv. Kiril i Metodij“, Prirodno-matematički fakultet, Seizmološka opservatorija, Skopje. A doctorial thesis (1999) (In Macedonian).

N. A. Haskell, Total energy and energy spectral density of elastic wave radiation from propagating faults, Bulletin of the Seismological Society of America, Vol. 54 (1964). pp. 1811–1841.

G. Müller, The reflectivity method: a tutorial. Journal of Geophysics, Vol. 58 (1985), pp. 153–174.

И. В. Ананын, Г. П. Ельцова, Г. А. Егорова, Ю. К. Щукин, Затухание интен- сивности Средней Азии и связь его с сейсмичностью и геологическим строением. Кн. Геофизические поля и сейсмичность, „Наука“, Москва (1975), стр. 114–126.

B. F. Howell, T. R. Schultz, Attenuation of Modified Mercalli Intensity with Distance from the Epicenter. Bulletin of the Seismological Society of America, Vol. 65 (1975), pp. 651–665.

M. Arsovski, Tectonics of Macedonia. Rudarsko-Geološki fakultet, Štip (1997) (In Macedonian.)




DOI: http://dx.doi.org/10.20903/csnmbs.masa.2008.29.1-2.12

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