dc.contributor.author |
Mavonga, T
|
|
dc.contributor.author |
Durrheim, RJ
|
|
dc.date.accessioned |
2009-10-23T11:17:11Z |
|
dc.date.available |
2009-10-23T11:17:11Z |
|
dc.date.issued |
2009-09 |
|
dc.identifier.citation |
Mavonga, T and Durrheim, RJ. 2009. Seismic hazard in the DRC and Western Rift Valley of Africa. 11th South African Geophysical Association Biennial Technical Meeting and Exhibition, Swaziland, 16-18 September 2009, pp 64-68 |
en |
dc.identifier.isbn |
9780620446020 |
|
dc.identifier.uri |
http://hdl.handle.net/10204/3685
|
|
dc.description |
11th South African Geophysical Association Biennial Technical Meeting and Exhibition, Swaziland, 16-18 September 2009 |
en |
dc.description.abstract |
A probabilistic approach was used to assess the seismic hazard in Democratic Republic of Congo and surrounding areas. Seismic hazard maps were prepared using a 90-year catalogue compiled for homogeneous Ms magnitudes; the attenuation relations of Mavonga (for the Western Rift Valley of Africa), Atkinson and Boore (for Eastern North America) and Jonathan (for Eastern and Southern Africa); and the EZ-Frisk software package. The highest levels of seismic hazard were found in the Lake Tanganyika Rift seismic zone, where peak ground accelerations (PGA) in excess of 0.32 g, 0.22 g and 0.16 g are expected to occur with 2%, 5% and 10% chance of exceedence in 50 years, respectively. The seismic hazard in the Congo basin diminishes with distance away from the Western Rift Valley until, at a distance of about 450 km, the chance of exceeding 0.05 g (the threshold value of engineering interst) is less than 10% in 50 years. |
en |
dc.language.iso |
en |
en |
dc.publisher |
South African Geophysical Association |
en |
dc.subject |
Seismic hazard |
en |
dc.subject |
Probabilistic seismic hazards |
en |
dc.subject |
Peak ground acceleration |
en |
dc.subject |
Western Rift Valley |
en |
dc.subject |
Africa |
en |
dc.subject |
Seismic hazard maps |
en |
dc.subject |
Geophysics |
en |
dc.subject |
Democratic Republic of Congo |
en |
dc.subject |
DRC |
en |
dc.title |
Seismic hazard in the DRC and Western Rift Valley of Africa |
en |
dc.type |
Conference Presentation |
en |
dc.identifier.apacitation |
Mavonga, T., & Durrheim, R. (2009). Seismic hazard in the DRC and Western Rift Valley of Africa. South African Geophysical Association. http://hdl.handle.net/10204/3685 |
en_ZA |
dc.identifier.chicagocitation |
Mavonga, T, and RJ Durrheim. "Seismic hazard in the DRC and Western Rift Valley of Africa." (2009): http://hdl.handle.net/10204/3685 |
en_ZA |
dc.identifier.vancouvercitation |
Mavonga T, Durrheim R, Seismic hazard in the DRC and Western Rift Valley of Africa; South African Geophysical Association; 2009. http://hdl.handle.net/10204/3685 . |
en_ZA |
dc.identifier.ris |
TY - Conference Presentation
AU - Mavonga, T
AU - Durrheim, RJ
AB - A probabilistic approach was used to assess the seismic hazard in Democratic Republic of Congo and surrounding areas. Seismic hazard maps were prepared using a 90-year catalogue compiled for homogeneous Ms magnitudes; the attenuation relations of Mavonga (for the Western Rift Valley of Africa), Atkinson and Boore (for Eastern North America) and Jonathan (for Eastern and Southern Africa); and the EZ-Frisk software package. The highest levels of seismic hazard were found in the Lake Tanganyika Rift seismic zone, where peak ground accelerations (PGA) in excess of 0.32 g, 0.22 g and 0.16 g are expected to occur with 2%, 5% and 10% chance of exceedence in 50 years, respectively. The seismic hazard in the Congo basin diminishes with distance away from the Western Rift Valley until, at a distance of about 450 km, the chance of exceeding 0.05 g (the threshold value of engineering interst) is less than 10% in 50 years.
DA - 2009-09
DB - ResearchSpace
DP - CSIR
KW - Seismic hazard
KW - Probabilistic seismic hazards
KW - Peak ground acceleration
KW - Western Rift Valley
KW - Africa
KW - Seismic hazard maps
KW - Geophysics
KW - Democratic Republic of Congo
KW - DRC
LK - https://researchspace.csir.co.za
PY - 2009
SM - 9780620446020
T1 - Seismic hazard in the DRC and Western Rift Valley of Africa
TI - Seismic hazard in the DRC and Western Rift Valley of Africa
UR - http://hdl.handle.net/10204/3685
ER -
|
en_ZA |