Reading: Seismicity around Sri Lanka from Historical Records and its Engineering Implications

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Seismicity around Sri Lanka from Historical Records and its Engineering Implications

Authors:

H. N. Seneviratne ,

University of Peradeniya, LK
About H. N.

Senior Professor, Department of Civil Engineering

 

FIE (SL), BScEng (Ceylon), PhD (Cambridge)

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L. R. K. Perera,

University of Peradeniya, LK
About L. R. K.

Senior Lecturer, Department of Geology

 

BSc (Peradeniya), MPhil (Peradeniya)

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K. K. Wijesundara,

University of Peradeniya, LK
About K. K.

Senior Lecturer, Department of Civil Engineering

 

AMIE (SL), BSc Eng (Peradeniya), MScEng (Pavia), PhD (Pavia)

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R. M. S. Dananjaya,

University of Peradeniya, LK
About R. M. S.

Research Assistant, Department of Civil Engineering

 

AMIE (SL), BScEng (Peradeniya), MPhil (Peradeniya)

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U. de S. Jayawardena

University of Peradeniya, LK
About U.

Professor, Department of Civil Engineering

C. Eng., FIE (SL), BSc (Peradeniya), MSc (AIT), DEng (Kyushu)

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Abstract

This paper describes a study carried out to analyse the historical records of earthquakes in the vicinity of Sri Lanka. The records indicate that the 1615 earthquake was the most significant earthquake that affected Sri Lanka. By analysing over 300 records of earthquakes around Sri Lanka, it was found that Mannar rift zone and Comorin ridge is the critical zone of influence which is capable of generating a seismic event of magnitude 6.9 at a 475 year return period at a depth of 10 – 15 km below the sea level. The study demonstrates that seismicity around Sri Lanka cannot be no longer ignored and engineering design should include seismic hazards.
How to Cite: Seneviratne, H.N., Perera, L.R.K., Wijesundara, K.K., Dananjaya, R.M.S. and de S. Jayawardena, U., 2020. Seismicity around Sri Lanka from Historical Records and its Engineering Implications. Engineer: Journal of the Institution of Engineers, Sri Lanka, 53(2), pp.47–52. DOI: http://doi.org/10.4038/engineer.v53i2.7412
Published on 30 Apr 2020.
Peer Reviewed

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