Third paper on S1222a co-authored by our group:
Panning, M., Banerdt, W., Beghein, C., Carrasco, S., Ceylan, S., Clinton, J., Davis, P., Drilleau, M., Giardini, D., Khan, A., Knapmeyer-Endrun, B., Kim, D., Li, J., Lognonné, P., and Stähler, S., Zenhäusern, G. (2023), Locating the largest event observed on Mars with multi-orbit surface waves, Geophys. Res. Let., 50, 1, doi:10.1029/2022GL101270
Main Points:
- The MW 4.7 S1222a event is the first Marsquake large enough for multi-orbit surface wave location independent of a priori seismic velocity
- Using measurements of R1, R2, and R3 Rayleigh waves, we determine an epicentral distance consistent with that estimated from body waves
- Elliptical particle motion is observed for Rayleigh wave arrivals broadly consistent with the backazimuth identified from body waves