Probabilistic seismic hazard assessment of Sudan and its vicinity

J. A. Abdalla, Y. E.A. Mohamedzein, A. Abdel Wahab

Research output: Contribution to specialist publicationArticle

10 Citations (Scopus)

Abstract

This paper presents seismic hazard assessment and seismic zoning of Sudan and its vicinity based on probabilistic approach. The area studied lies between 22° E-45° E and 0° - 24° N. Tectonics of Sudan and its vicinity is first reviewed. An updated NOAA catalogue, containing both historical and instrumental events and covering the period from 700 A.D. to 1993 is then used. Seismic source regions are modeled and relationships between earthquake magnitude and earthquake frequency are established. A modified attenuation relation is used. Seismic hazard assessment is then carried out for 60 km interval grid points. Seismic hazard maps of the studied area based on peak ground acceleration (PGA) for 10% probability of exceedance for time-spans of 50, 100, 200 and 250 years are presented. The results showed that the PGA ranges from 0.02g for low seismic activity regions to around 0.62g for high seismic activity regions. A seismic zone map is also shown for 475 years return period.

Original languageEnglish
Pages399-415
Number of pages17
Volume17
No.3
Specialist publicationEarthquake Spectra
DOIs
Publication statusPublished - Aug 2001

Fingerprint

Sudan
hazard assessment
seismic hazard
hazards
Hazards
Earthquakes
earthquakes
Zoning
seismic zone
seismic source
earthquake magnitude
Tectonics
return period
zoning
catalogs
tectonics
coverings
attenuation
grids
intervals

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geophysics

Cite this

Probabilistic seismic hazard assessment of Sudan and its vicinity. / Abdalla, J. A.; Mohamedzein, Y. E.A.; Abdel Wahab, A.

In: Earthquake Spectra, Vol. 17, No. 3, 08.2001, p. 399-415.

Research output: Contribution to specialist publicationArticle

Abdalla, J. A. ; Mohamedzein, Y. E.A. ; Abdel Wahab, A. / Probabilistic seismic hazard assessment of Sudan and its vicinity. In: Earthquake Spectra. 2001 ; Vol. 17, No. 3. pp. 399-415.
@misc{44d6b0a938264d45a2793e6b5869288a,
title = "Probabilistic seismic hazard assessment of Sudan and its vicinity",
abstract = "This paper presents seismic hazard assessment and seismic zoning of Sudan and its vicinity based on probabilistic approach. The area studied lies between 22° E-45° E and 0° - 24° N. Tectonics of Sudan and its vicinity is first reviewed. An updated NOAA catalogue, containing both historical and instrumental events and covering the period from 700 A.D. to 1993 is then used. Seismic source regions are modeled and relationships between earthquake magnitude and earthquake frequency are established. A modified attenuation relation is used. Seismic hazard assessment is then carried out for 60 km interval grid points. Seismic hazard maps of the studied area based on peak ground acceleration (PGA) for 10{\%} probability of exceedance for time-spans of 50, 100, 200 and 250 years are presented. The results showed that the PGA ranges from 0.02g for low seismic activity regions to around 0.62g for high seismic activity regions. A seismic zone map is also shown for 475 years return period.",
author = "Abdalla, {J. A.} and Mohamedzein, {Y. E.A.} and {Abdel Wahab}, A.",
year = "2001",
month = "8",
doi = "10.1193/1.1586181",
language = "English",
volume = "17",
pages = "399--415",
journal = "Earthquake Spectra",
issn = "8755-2930",
publisher = "Earthquake Engineering Research Institute",

}

TY - GEN

T1 - Probabilistic seismic hazard assessment of Sudan and its vicinity

AU - Abdalla, J. A.

AU - Mohamedzein, Y. E.A.

AU - Abdel Wahab, A.

PY - 2001/8

Y1 - 2001/8

N2 - This paper presents seismic hazard assessment and seismic zoning of Sudan and its vicinity based on probabilistic approach. The area studied lies between 22° E-45° E and 0° - 24° N. Tectonics of Sudan and its vicinity is first reviewed. An updated NOAA catalogue, containing both historical and instrumental events and covering the period from 700 A.D. to 1993 is then used. Seismic source regions are modeled and relationships between earthquake magnitude and earthquake frequency are established. A modified attenuation relation is used. Seismic hazard assessment is then carried out for 60 km interval grid points. Seismic hazard maps of the studied area based on peak ground acceleration (PGA) for 10% probability of exceedance for time-spans of 50, 100, 200 and 250 years are presented. The results showed that the PGA ranges from 0.02g for low seismic activity regions to around 0.62g for high seismic activity regions. A seismic zone map is also shown for 475 years return period.

AB - This paper presents seismic hazard assessment and seismic zoning of Sudan and its vicinity based on probabilistic approach. The area studied lies between 22° E-45° E and 0° - 24° N. Tectonics of Sudan and its vicinity is first reviewed. An updated NOAA catalogue, containing both historical and instrumental events and covering the period from 700 A.D. to 1993 is then used. Seismic source regions are modeled and relationships between earthquake magnitude and earthquake frequency are established. A modified attenuation relation is used. Seismic hazard assessment is then carried out for 60 km interval grid points. Seismic hazard maps of the studied area based on peak ground acceleration (PGA) for 10% probability of exceedance for time-spans of 50, 100, 200 and 250 years are presented. The results showed that the PGA ranges from 0.02g for low seismic activity regions to around 0.62g for high seismic activity regions. A seismic zone map is also shown for 475 years return period.

UR - http://www.scopus.com/inward/record.url?scp=0035413917&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035413917&partnerID=8YFLogxK

U2 - 10.1193/1.1586181

DO - 10.1193/1.1586181

M3 - Article

AN - SCOPUS:0035413917

VL - 17

SP - 399

EP - 415

JO - Earthquake Spectra

JF - Earthquake Spectra

SN - 8755-2930

ER -