Planned intervention: On Wednesday June 26th 05:30 UTC Zenodo will be unavailable for 10-20 minutes to perform a storage cluster upgrade.
Published October 31, 2022 | Version v1.1
Dataset Open

Malawi probabilistic seismic hazard analysis (PSHA) using the Malawi Seismogenic Source Model (MSSM). Supplementary Files v1.1

  • 1. University of Otago
  • 2. University of Bristol
  • 3. Western University
  • 4. Geological Survey of Malawi
  • 5. University of Malawi
  • 6. Cardiff University

Description

Updated (October 2022) version of supplementary files for running probabilistic seismic hazard analysis (PSHA) MATLAB codes for Malawi. The PSHA codes themselves (v1.0) are available at: https://doi.org/10.5281/zenodo.7265781and the most recent version will be available on GitHub at: https://github.com/jack-williams1/Malawi_PSHA. Note the variables stored here are not stored on GitHub due to the file size.

Includes both input files for performing PSHA and output ground motions for plotting PSHA results.

Files are:

  • malawi_Vs30_active.txt: Input USGS slope-based Vs30 values for Malawi (Wald and Allen 2007)
  • EQCAT_comb.mat: MSSM Direct catalog for all possible rupture weightings (stored as MATLAB variable)
  • GM_MSSM_em_20221027: Ground motions for plotting PSHA maps (stored as MATLAB variable)
  • GM_MSSM_20221021.mat: Ground motions needed for plotting PSHA-site analysis figures (stored as MATLAB variable)
  • mssm_comb.mat: Matlab file for combined MSSM Direct and Adapted MSSM catalogs (stored as MATLAB variable)
  • MSSM_Catalog_Adapted_em.mat: Adapated MSSM event catalog (stored as MATLAB variable)
  • syncat_bg.mat: Areal source stochastic event catalog (stored as MATLAB variable)

Further descriptions of these files and how to use them are provided on Github. An open-access manuscript describing the PSHA is available at: 

Williams J. N., Werner M. J., Goda K., Wedmore L. N. J., De Risi R., Biggs J., Mdala H., Dulanya Z., Fagereng Å, Mphepo F., Chindandali P. (2023). Fault-based probabilistic seismic hazard analysis in regions with low strain rates and a thick seismogenic layer: a case study from Malawi, Geophysical Journal International, Volume 233, Issue 3, June 2023, Pages 2172–2206, https://doi.org/10.1093/gji/ggad060

Please reference this publication along with this repository when using these data.

USGS vs30 value compilation described in:

Allen, T. I., and Wald, D. J., 2009, On the use of high-resolution topographic data as a proxy for seismic site conditions (Vs30), Bulletin of the Seismological Society of America, 99, no. 2A, 935-943.

 

Files

malawi_Vs30_active.txt

Files (5.7 GB)

Name Size Download all
md5:39232a0878445d5ab0cd3e8c629e5164
37.3 MB Download
md5:cd3c23dd04632552b6ebe64daa242dfc
210.7 MB Download
md5:c31b65ab82394b1d5e2a7240fec3975e
4.4 GB Download
md5:62465d642cad4b27418042fbfc00b449
48.0 MB Preview Download
md5:a98221c41b62ad03292313e6343bba23
381.3 MB Download
md5:fa58d9eac7038daef0eae1797103e9b4
199.6 MB Download
md5:ef2bfbf6ce4767e15af21a77c86a3112
417.5 MB Download

Additional details

Related works

Funding

Innovative data services for aquaculture, seismic resilience and drought adaptation in East Africa EP/T015462/1
UK Research and Innovation
PREPARE: Enhancing PREParedness for East African Countries through Seismic Resilience Engineering EP/P028233/1
UK Research and Innovation