A5070535276- earthquake and tectonic studies
- Seismic Waves and Analysis
- Seismology and Earthquake Studies
- High-pressure geophysics and materials
- Geological and Geophysical Studies
- Seismic Performance and Analysis
- Seismic Imaging and Inversion Techniques
- Earthquake Detection and Analysis
- Geological and Geochemical Analysis
- Disaster Management and Resilience
- Disaster Response and Management
- Geophysical and Geoelectrical Methods
- Drilling and Well Engineering
- Geophysics and Gravity Measurements
- Geotechnical Engineering and Underground Structures
- Groundwater and Watershed Analysis
- Geophysical Methods and Applications
- Reservoir Engineering and Simulation Methods
- Landslides and related hazards
- Non-Destructive Testing Techniques
- Geological Modeling and Analysis
- Geotechnical Engineering and Soil Mechanics
- Geotechnical and construction materials studies
- Environmental and Social Impact Assessments
- Rock Mechanics and Modeling
Council for Geoscience
2013-2024
University of the Witwatersrand
2020
University of Bergen
1999-2003
National Geophysical Research Institute
1999
Selecting ground motion prediction models (GMPM) is crucial in assessing seismic hazard levels a specific region. This study investigates the influence of model (GMM) selection on assessment Johannesburg, South Africa. Most events affecting Johannesburg are related to mining activities and water ingress into underground mine voids. The most seismically active regions Africa include areas around Klerksdorp, Welkom, Carletonville. These experience significant number earthquakes, with being...
The Council for Geoscience (CGS) performed a macroseismic investigation following the occurrence of an earthquake in Boksburg area on 11 June 2023. event had magnitude ML 4.4 and focal mechanism that showed as having strike-slip motion along northwest-southeast oriented fault. resulted aftershocks, some which occurred away from causative fault east without mapped However, cluster past events suggests there is active Due to size main earthquake, survey was conducted determine its impact...
Seismic hazard assessment for the Eastern and Southern Africa region was done using probabilistic approach. maps 10% exceedance in 50 years, 100 as well years return periods were prepared FRISK88M software. The area involved covers a wide bounded by latitudes 40°S-25°N longitudes 10°E 55°E. Input parameters computations obtained recent earthquake catalogue compiled Turyomurugyendo. which time period 627-1994, contains earthquakes within 10°E-55°E, with homogeneous magnitudes (M S ). Since...
Research Article| May 01, 2010 1-D Velocity Model for Use by the SANSN in Earthquake Location V. Midzi; Midzi Seismology Unit Council Geoscience Private Bag X112 Pretoria 0001, South Africa vmidzi@geoscience.org.za (V. M.) Search other works this author on: GSW Google Scholar I. Saunders; Saunders M. B. C. Brandt; Brandt T. Molea Author and Article Information Publisher: Seismological Society of America First Online: 09 Mar 2017 Online ISSN: 1938-2057 Print 0895-0695 © Letters (2010) 81 (3):...
Research Article| December 01, 2015 Comparison and Quantitative Study of Vulnerability/Damage Curves in South Africa T. Pule; Pule Council for Geoscience, 280 Pretoria Road, Silverton, Africa, e-mail: tpule@geoscience.org.za Search other works by this author on: GSW Google Scholar C.J.S. Fourie; Fourie Environmental Water Earth Sciences, Tshwane University Technology, FourieCJS@tut.ac.za A. Kijko; Kijko Pretoria, Natural Hazard Centre, andrzej.kijko@up.ac.za V. Midzi vmidzi@geoscience.org.za...
Research Article| December 01, 2009 FOCAL MECHANISM SOLUTION OF THE 15TH MARCH 2008, NYAMANDLOVU EARTHQUAKE B.T. SHUMBA; SHUMBA Goetz Observatory, P.O.Box AC65, Ascot, Bulawayo, Zimbabwe, e-mail: shumbamajachani@yahoo.co.uk Search for other works by this author on: GSW Google Scholar D.J. HLATYWAYO; HLATYWAYO Physics Department, National University of Science and Technology, AC 939, djhlatywayo@gmail.com V. MIDZI Seismology Unit, Council Geoscience, P. Bag X112 Pretoria 0001 South Africa,...
Abstract Reliable local earthquake locations depend on many factors of which a major one is the velocity model. Currently Council for Geoscience (CGS) has been using global IASP91 model in cluster networks. To continue improving it necessary that new models are determined each region (Central and East Rand - CERAND, Klerksdorp – Orkney Stilfontein Hartebeesfontein KOSH Far West WRAND). The availability good quality data recorded by networks since their inception 2010 provides an opportunity...
Recent moderately sized earthquakes (18 November 2013 and 2 December 2013) occurred in the Johannesburg area (M L = 3.6) southern Limpopo Province 3.9) respectively. The vigorously shook epicentral areas. Following shaking, many people submitted reports to Council for Geoscience (CGS) through an online questionnaire which recorded their experience, whilst others reported earthquake its effects on social networks like Twitter. both earthquakes, CGS sent teams of experts into surrounding areas...
This study is focused on determining the nature, extend and spatial variation of subsurface groundwater in Matsheumhlope low yielding aquifer so as to improve understanding occurrence within Bulawayo Metropolitan area. The abstraction utilisation from crystalline basement complexes have often been hampered by high rate borehole failure. For instance, failure wellfield that characterises greater part City, Zimbabwe, ascribed many factors which are yet be investigated locally regionally....
Research Article| July 01, 2001 The Seismicity of the Kuwaiti Subregion J. Al-Awadhi; Al-Awadhi Kuwait Institute for Scientific P. O. Box 24885 Safat 13109 jawadhi@kisr.edu.ku (J.A.-A.) Search other works by this author on: GSW Google Scholar V. Midzi Department Meteorological Services Goetz Observatory AC65 Ascot, Bulawayo Zimbabwe +263-9-66197 Fax: +263-9-77811 vunganai@hotmail.com (V.M.) Seismological Letters (2001) 72 (4): 462–473. https://doi.org/10.1785/gssrl.72.4.462 Article history...
<title>Abstract</title> Ambient noise vibrations are widely used in the field of geotechnical earthquake engineering for site response analysis. Though generally weak, these available anywhere and anytime an ideal source energy conducting seismic surveys. The use horizontal to vertical spectral ratio (H/V) from ambient records, characterise local effects is now established technique. This technique can be applied estimate predominant frequencies, amplitude ratios vulnerability index area....