Seismic hazard across Bulgaria and neighbouring areas: regional and site-specific maximum credible magnitudes and earthquake perceptibility

Bayliss, Thomas J.; Burton, Paul W.

doi:10.1007/s11069-013-0590-5

Cited by 5 publications

(2 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Few of the stable continental regions (SCR) experienced earthquakes large enough to be taken as M max from Q 0 (Wheeler 2009). Burton (1983, 1985) and Bayliss and Paul (2013) have proposed an analytical method for maximum magnitude estimation of a region using strain energy released. Three magnitudes have been defined which correspond to (i) the most probable annual maximum earthquake which depends upon the Gutenberg-Richter relationship and equals a = b (ME 1 ), (ii) magnitude resembling mean annual rate of energy released (ME 2 ), and (iii) the analytical upper bound for the earthquake magnitude (ME 3 ).…”

Section: Methods Of M Max Estimationmentioning

confidence: 99%

“…M max values determined using MM5 are very large and do not match with any of the above methods. The maximum magnitude corresponding to strain energy released (MM6) has been calculated as per Burton (1983, 1985) and Bayliss and Paul (2013) for both the seismic study area considering 150-, 300-, and 500-km radii. A typical plot for 150, 300, and 500 km for Kalpakkam and Patna is shown in Figs.…”

Section: Maximum Magnitude (M Max ) Estimation By Existing Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Maximum magnitude estimation considering the regional rupture character

et al. 2015

View full text Add to dashboard Cite

The main objective of the paper is to develop a new method to estimate the maximum magnitude (M max ) considering the regional rupture character. The proposed method has been explained in detail and examined for both intraplate and active regions. Seismotectonic data has been collected for both the regions, and seismic study area (SSA) map was generated for radii of 150, 300, and 500 km. The regional rupture character was established by considering percentage fault rupture (PFR), which is the ratio of subsurface rupture length (RLD) to total fault length (TFL). PFR is used to arrive RLD and is further used for the estimation of maximum magnitude for each seismic source. Maximum magnitude for both the regions was estimated and compared with the existing methods for determining M max values. The proposed method gives similar M max value irrespective of SSA radius and seismicity. Further seismicity parameters such as magnitude of completeness (M c ), Ba^and Bb^parameters and maximum observed magnitude (M max obs ) were determined for each SSA and used to estimate M max by considering all the existing methods. It is observed from the study that existing deterministic and probabilistic M max estimation methods are sensitive to SSA radius, M c , a and b parameters and M max obs values. However, M max determined from the proposed method is a function of rupture character instead of the seismicity parameters. It was also observed that intraplate region has less PFR when compared to active seismic region.

show abstract

Section: Methods Of M Max Estimationmentioning

confidence: 99%

Section: Maximum Magnitude (M Max ) Estimation By Existing Methodsmentioning

confidence: 99%