Earthquake hazard in southern Africa

  • 22 Pages
  • 0.47 MB
  • English
Republic of South Africa Dept. of Mines , Pretoria
Earthquake hazard analysis -- Africa, Southern., Earthquake engineering -- Africa, Sout


Africa, Sout

Statementby L.M. Fernandez and J.A. Guzman.
SeriesSeismologic series ;, 10 =, Seiemologiese reeks ;, 10, Seismologic series ;, 10.
ContributionsGuzman, J. A.
LC ClassificationsQE536.2.A356 F47 1979
The Physical Object
Paginationiii, 22 p., [3] folded leaves of plates :
ID Numbers
Open LibraryOL2791871M
ISBN 100621054062
LC Control Number83219737

The Earthquake of 29 September in the Southwestern Cape Province, South Africa.

Description Earthquake hazard in southern Africa PDF

Seismological Series 4, Geological Survey of South Africa, 81pp. Seismological Series 4, Geological Survey of South Africa, by: 4. Earthquake Hazard level: Medium.

In the area you have selected (South Africa) earthquake hazard is classified as medium according to the information that is currently available.

This means that there is a 10% chance of potentially-damaging earthquake shaking in your project area in the next 50 years. The largest earthquake in Southern and Central Africa: this week: in Lodwar, Turkana, Kenya this month: in Lodwar, Turkana, Kenya. It is notable that the areas of greatest seismic hazard in South Africa occur in three regions namely (1) in the southwestern Cape in a x 50 km sector extending northeastward from Cape Town; (2) in a x km sector in the southern Free State and Lesotho; and (3) in Swaziland (Fernandez and Du Plessis.

Eastern and Southern Africa covers a region which is prone to a significant level of seismic hazard due to the presence of the East African rift system. A number of destructive earthquakes, some causing loss to life, have been reported during this century. Seismic hazard assessment for the eastern and southern Africa region was done using the probabilistic approach.

Seismic hazard maps for 10% exceedence in 50 years, 10% exceedence in years, as. Original title: Earthquake risk in Africa: Modified Mercalli Scale This map illustrates earthquake intensity zones in accordance with the version of the Modified Mercalli Scale (MMS), describing the effects of an earthquake on the surface of the earth and integrating numerous parameters such as ground acceleration, duration of an earthquake, and subsoil effects.

Details Earthquake hazard in southern Africa PDF

South Africa has had: (M or greater) 0 earthquakes in the past 24 hours 0 earthquakes in the past 7 days; 1 earthquake in the past 30 days; 6 earthquakes in the past days. Physical Map or Study Area Tulbagh and Ceres Earthquake Frequency of Natural Disasters in Africa Introduction People in Africa Affected by Natural Disasters Started along Ou Kaapse Weg on Sunday, Janu SOUTH AFRICAN JOURNAL OF GEOLOGY PROBABILISTIC SEISMIC HAZARD ASSESSMENT FOR THE DEMOCRATIC REPUBLIC OF CONGO Figure 4.

(a) Epicentres in the DRC and surrounding areas for the time period used in the seismic hazard filled large stars, rectangles, lozenges and small stars indicate earthquakes of magnitude range between to.

Earthquake swarms occur regularly throughout the world and in South Africa an earthquake swarm occurred in the Sutherland area in earlywith no further significant activity recorded since.

The area of Augrabies has currently been experiencing an earthquake swarm. Earthquake Hazard, Risk, and Disasters presents the latest scientific developments and reviews of research addressing seismic hazard and seismic risk, including causality rates, impacts on society, preparedness, insurance and mitigation.

The current controversies in seismic hazard assessment and earthquake prediction are addressed from different points of g: southern Africa.

Disaster and natural hazard governance has become a significant policy and legislative focus in South Africa since the early s.

Born out of necessity from a dysfunctional apartheid system, the. Impact of Recent Moderately Sized Earthquakes in South Africa: Macroseismic Investigations of the 18 November and 2 December Earthquakes Related Book Content.

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Limitations of the short earthquake record for seismicity and seismic hazard studies Continental Intraplate Earthquakes: Science, Hazard, and Policy Issues.

Magnitude, recurrence Cited by: 1. Introduction. Sub-Saharan Africa’s (SSA) disaster profile is closely linked to the vulnerability of its population and economy and the population’s often-low capacities to cope with natural hazards (World Bank, ; van Niekerk & Coetzee, ).SSA can be defined as the region south of the Sahara and comprises 48 countries (UNEP, ).The region is characterized by a large diversity Author: Dewald van Niekerk, Livhuwani David Nemakonde.

Historical overview of significant African earthquakes. Tectonic framework of African seismicity. Evolution and plate-kinematics of the East African Rift System.

Natural and induced earthquakes in southern Africa. Associated African geohazards. Recommended reading. Hartnady, C. Several studies on the seismic hazards of South Africa were conducted over time (e.g. Fernández and Guzman, ; Shapira and Fernández, ; Midzi et al., ; Kijko et al., ).

Fernández and Guzman () published the first perceived seismic hazard map that depicted hazard levels in South Africa based on the distribution of annual extreme : Vunganai Midzi, B. Manzunzu, T.

Mulabisana, B.S. Zulu, T. Pule, S. Myendeki. Earthquakes in South Africa In South Africa earthquakes can be strong and cause heavy damages in a circle of dozens of kilometers.

Measured against the size of the country, earthquakes occur very rarely. 55 people died since by direct consequences of earthquakes. Other natural hazards in South Africa: › Tsunamis.

Prof Andrzej Kijko is the Director of the University of Pretoria Natural Hazard Centre, Africa which is located within the premises of the University of Pretoria. As an internationally acclaimed researcher, he has been active in engineering geophysics and seismology for over 36 years.

Study looks for links between fracking and earthquakes in SA. Seismic hazards in South Africa are not high by international norms. But there could be significant damage to infrastructure if. Earthquake, any sudden shaking of the ground caused by the passage of seismic waves through Earth’s rocks.

Earthquakes occur most often along geologic faults, narrow zones where rock masses move in relation to one another. Learn more about the.

In light of the 5 August M5,6 earthquake, the Council for Geoscience held a panel discussion at the CSIR on the likeliness of similar earthquakes reoccurring in South Africa.

Earthquakes do not only damage buildings, but are often accompanied by fires and flooding. They also pose serious risk to vulnerable areas such as [ ].English, Government publication, Map, Single map edition: Seismic hazard maps for southern Africa [cartographic material] / compilation by Seismology Section - Geophysics Division ; compilers and authors of explanatory notes L.M.

Fernandez and A. du Plessis. South Africa. Department of Mineral and Energy Affairs. Search the world's most comprehensive index of full-text books. Cape Town - This week's magnitude tremor might have left the country shaken, but South Africa's biggest earthquake in recent history hit the Western Cape in   Disaster and natural hazard governance has become a significant policy and legislative focus in South Africa since the early s.

Born out of necessity from a dysfunctional apartheid system, the new emphasis on disaster risk reduction in the democratic dispensation also ushered in a new era in the management of natural hazards and their associated risks and : D. van Niekerk, G.J. Wentink, L.B. Shoroma. Latest earthquakes in Africa: interactive map & list / VolcanoDiscovery.

GFZ: Lodwar ( km SE from epicenter) / MMI IV (Light shaking): Was watching TV when I heard slight neighbours woke up and we all confirmed it was an earthquake.

Meru ( km SSE from epicenter) / MMI II (Very weak shaking): Very mild house shaking. I live on the third floor of some apartment block. Southern Africa In a subregion where at least seven in ten people depend on farming and herding for their livelihoods, the effects have been widespread.

The El Niño induced drought devastated rainfed agriculture, with less land planted and crops damaged owing to the late onset of. Southern Africa suffers from an acute lack in skilled capacities for disaster risk reduction and climate change adaptation. By hazard categories this book includes critical processes and outcomes that significantly disrupt human wellbeing over brief or long time-frames.

Hazards, Risks, and Disasters in Society provides analyses of. Heavy rains fell across southern Africa in early By early February, river flooding in South Africa alone had killed 91 people and caused over $ million in damage, the United Nations stated.

Times Live reported that the government had issued flood warnings for areas along the Orange, South Africa. Africa - Disaster Statistics A 'pre-designed' summary and profile of disasters reported for a particular region including a summary of events from to Septemberas well as the top 10 disasters.Earthquake Hazard Mitigation for Non-Engineering Structures (Commonwealth Science Council, UK), Hyderabad, India.

East and Southern Africa Region Seismic Hazard Workshop, Bulawayo, Zimbabwe. XXIV General Assembly European Seismological Commission, Athens, Greece.into one of the largest risks facing the people, government and insurance community in South Africa: earthquake.

Regarded as the natural hazard most likely to trigger the country’s largest financial loss, this report combines science and insurance industry expertise to help prepare for a seismic Size: 2MB.