Evidence From High‐Resolution Topography for Multiple Earthquakes on High Slip‐to‐Length Fault Scarps: The Bilila‐Mtakataka Fault, Malawi

Evidence From High‐Resolution Topography for Multiple Earthquakes on High Slip‐to‐Length Fault Scarps: The Bilila‐Mtakataka Fault, Malawi

Geomorphological features such as fault scarps and stream knickpoints are indicators of recent fault activity. Determining whether these features formed during a single earthquake or over multiple earthquakes cycles has important implications for the interpretation of the size and frequency of past...

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Veröffentlicht in:Tectonics (Washington, D.C.) D.C.), 2020-02, Vol.39 (2), p.n/a
Hauptverfasser: Hodge, M., Biggs, J., Fagereng, Å., Mdala, H., Wedmore, L. N. J., Williams, J. N.
Format: Artikel
Sprache:eng
Schlagworte:
Diffusion
Earthquakes
Escarpments
Fault lines
Fault scarps
Geomorphology
Profiles
Resolution
Rivers
Seismic activity
Stream profiles
Tectonic geomorphology
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Zusammenfassung:Geomorphological features such as fault scarps and stream knickpoints are indicators of recent fault activity. Determining whether these features formed during a single earthquake or over multiple earthquakes cycles has important implications for the interpretation of the size and frequency of past events. Here, we focus on the Bilila‐Mtakataka fault, Malawi, where the 20 m high fault scarps exceed the height expected from a single earthquake rupture. We use a high‐resolution digital elevation model (
ISSN:0278-7407
1944-9194
DOI:10.1029/2019TC005933