Seismic Risk Assessment of Urban and Rural Settlements around Lake Malawi

The seismic risk potential for Malawi is high because traditional adobe and earthen structures are seismically vulnerable and large earthquakes of Mw7.0 or greater can be originated from the Malawi Rift. To assess seismic risk of the Malawian communities quantitatively, data and models for exposure,...

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Bibliographic Details
Published in:Frontiers in built environment 2016-11, Vol.2
Main Authors: Goda, Katsuichiro, Gibson, Emily Daisy, Smith, Holly R., Biggs, Juliet, Hodge, Michael
Format: Article
Language:English
Subjects:
Large-magnitude earthquake
Long-term risk mitigation
Population
seismic risk
seismic vulnerability
sensitivity analysis
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Summary:The seismic risk potential for Malawi is high because traditional adobe and earthen structures are seismically vulnerable and large earthquakes of Mw7.0 or greater can be originated from the Malawi Rift. To assess seismic risk of the Malawian communities quantitatively, data and models for exposure, hazard, and vulnerability modules that are suitable for Malawi are integrated. The developed risk model is applied to a retrospective appraisal of the past damaging 2009 Karonga earthquake sequence and to the future earthquake scenarios for long-term risk management purposes. The earthquake impact assessment results highlight that the collapse risk predictions of the Malawian settlements are particularly dependent on the inclusion of large-magnitude earthquakes from the active faults around Lake Malawi and the selection and combination of seismic vulnerability models.
ISSN:2297-3362
2297-3362
DOI:10.3389/fbuil.2016.00030