Seaward fringing mangroves that occur at mean sea level are at future risk of loss and degradation unless they can vertically accumulate soil surface elevation at the same or higher rates than sea-level rise. Mangrove mortality from extreme weather events can however interrupt the maintenance of soil surface elevation, and its resilience to sea-level rise. In Quandamooka, extreme weather events resulted in the toppling of several large individuals of Avicennia on the edge of Eprapah Creek where surface elevation tables had previously been installed. Using these surface elevation tables approximately 30m away from the damaged trees, we monitored changes in surface elevation for two years. Surface elevation in the mangroves declined by 26.3mm year-1 following severe storms in early 2021, and by 9.11mm year-1 following flooding events in early 2022. Accumulation of sediments observed upon the surface were positive indicating that below-ground processes were responsible for the decline in soil surface elevation. Losses in surface elevation from extreme events as observed within these mangroves could result in mangrove fringes that are unable to maintain their elevation relative to sea-level rise, leading to enhanced vulnerability to sea-level rise and the eventual retreat of mangroves and subsequent transition to unvegetated mud flats.