Matches in SemOpenAlex for { <https://semopenalex.org/work/W4308855175> ?p ?o ?g. }
- W4308855175 endingPage "3639" @default.
- W4308855175 startingPage "3607" @default.
- W4308855175 abstract "Abstract. Active fault data are commonly used in seismic hazard assessments, but there are challenges in deriving the slip rate, geometry, and frequency of earthquakes along active faults. Herein, we present the open-access geospatial Malawi Seismogenic Source Model (MSSM; https://doi.org/10.5281/zenodo.5599616), which describes the seismogenic properties of faults that formed during ongoing east African rifting in Malawi. We first use empirically derived constraints to geometrically classify active faults into section, fault, and multifault seismogenic sources. For sources in the North Basin of Lake Malawi, slip rates can be derived from the vertical offset of a seismic reflector that dated lake cores indicate is 75 ka. Elsewhere, slip rates are constrained from advancing a systems-based approach that partitions geodetically derived rift extension rates in Malawi between seismogenic sources using a priori constraints on a regional strain distribution and a hanging wall flexural extension in magma-poor continental rifts. Slip rates are then combined with source geometry and empirical scaling relationships to estimate earthquake magnitudes and recurrence intervals, and their uncertainty is described from the variability in logic tree outcomes used in these calculations. Sources in the MSSM are 5–269 km long, which implies that large-magnitude (Mw 7–8) earthquakes may occur in Malawi. However, low slip rates (0.05–2 mm yr−1) mean that the frequency of such events will be low (recurrence intervals of ∼103–104 years). We also find that, for 9 out of 11 faults in Lake Malawi's North Basin, differences in the slip rates, when estimated independently from the geodetic data and the offset seismic reflector, are not statistically significant. The MSSM represents an important resource for investigating Malawi's increasing seismic risk and provides a framework for incorporating active fault data into seismic hazard assessment elsewhere in the East African Rift and other tectonically active regions." @default.
- W4308855175 created "2022-11-17" @default.
- W4308855175 creator A5000057529 @default.
- W4308855175 creator A5002675221 @default.
- W4308855175 creator A5003548446 @default.
- W4308855175 creator A5007530502 @default.
- W4308855175 creator A5008436371 @default.
- W4308855175 creator A5008506653 @default.
- W4308855175 creator A5025903767 @default.
- W4308855175 creator A5042295980 @default.
- W4308855175 creator A5056833871 @default.
- W4308855175 creator A5063585489 @default.
- W4308855175 creator A5072954849 @default.
- W4308855175 creator A5083240181 @default.
- W4308855175 creator A5087849819 @default.
- W4308855175 date "2022-11-07" @default.
- W4308855175 modified "2023-10-14" @default.
- W4308855175 title "Geologic and geodetic constraints on the magnitude and frequency of earthquakes along Malawi's active faults: the Malawi Seismogenic Source Model (MSSM)" @default.
- W4308855175 cites W1492440721 @default.
- W4308855175 cites W1509807282 @default.
- W4308855175 cites W1542737301 @default.
- W4308855175 cites W1580751720 @default.
- W4308855175 cites W1635494578 @default.
- W4308855175 cites W1659758765 @default.
- W4308855175 cites W1800719856 @default.
- W4308855175 cites W1804188941 @default.
- W4308855175 cites W1843649757 @default.
- W4308855175 cites W1868679766 @default.
- W4308855175 cites W1870905959 @default.
- W4308855175 cites W1938551673 @default.
- W4308855175 cites W1968718481 @default.
- W4308855175 cites W1971393809 @default.
- W4308855175 cites W1974417838 @default.
- W4308855175 cites W1974697134 @default.
- W4308855175 cites W1978947341 @default.
- W4308855175 cites W1983777910 @default.
- W4308855175 cites W1985241918 @default.
- W4308855175 cites W1987012860 @default.
- W4308855175 cites W1989165897 @default.
- W4308855175 cites W2000314863 @default.
- W4308855175 cites W2002025988 @default.
- W4308855175 cites W2008697864 @default.
- W4308855175 cites W2013346962 @default.
- W4308855175 cites W2015864953 @default.
- W4308855175 cites W2016210628 @default.
- W4308855175 cites W2017911693 @default.
- W4308855175 cites W2025676217 @default.
- W4308855175 cites W2035113065 @default.
- W4308855175 cites W2035615243 @default.
- W4308855175 cites W2037324444 @default.
- W4308855175 cites W2037358833 @default.
- W4308855175 cites W2041191706 @default.
- W4308855175 cites W2041659463 @default.
- W4308855175 cites W2044672931 @default.
- W4308855175 cites W2044861430 @default.
- W4308855175 cites W2047172161 @default.
- W4308855175 cites W2049598779 @default.
- W4308855175 cites W2054321704 @default.
- W4308855175 cites W2057854579 @default.
- W4308855175 cites W2058782189 @default.
- W4308855175 cites W2058921838 @default.
- W4308855175 cites W2059496600 @default.
- W4308855175 cites W2061342410 @default.
- W4308855175 cites W2065506833 @default.
- W4308855175 cites W2065837783 @default.
- W4308855175 cites W2067818293 @default.
- W4308855175 cites W2071866064 @default.
- W4308855175 cites W2074093419 @default.
- W4308855175 cites W2075225778 @default.
- W4308855175 cites W2075342037 @default.
- W4308855175 cites W2078083378 @default.
- W4308855175 cites W2078481036 @default.
- W4308855175 cites W2086885317 @default.
- W4308855175 cites W2093390031 @default.
- W4308855175 cites W2096141135 @default.
- W4308855175 cites W2096154525 @default.
- W4308855175 cites W2096964403 @default.
- W4308855175 cites W2098197435 @default.
- W4308855175 cites W2101944081 @default.
- W4308855175 cites W2109476697 @default.
- W4308855175 cites W2109799570 @default.
- W4308855175 cites W2112868589 @default.
- W4308855175 cites W2113162852 @default.
- W4308855175 cites W2114198362 @default.
- W4308855175 cites W2117711522 @default.
- W4308855175 cites W2120572721 @default.
- W4308855175 cites W2130737143 @default.
- W4308855175 cites W2134330218 @default.
- W4308855175 cites W2143578554 @default.
- W4308855175 cites W2151637737 @default.
- W4308855175 cites W2151645804 @default.
- W4308855175 cites W2151702665 @default.
- W4308855175 cites W2159494375 @default.
- W4308855175 cites W2167327624 @default.
- W4308855175 cites W2170647362 @default.
- W4308855175 cites W2171607444 @default.
- W4308855175 cites W2219676157 @default.
- W4308855175 cites W2230269436 @default.