, a reanalysis of weather data was ongoing by researchers who may upgrade or downgrade Atlantic hurricanes currently listed at Categories 4 and 5. For example, the 1825 Santa Ana hurricane is suspected to have reached Category 5 strength. Furthermore, paleotempestological research aims to identify past major hurricanes by comparing sedimentary evidence of recent and past hurricane strikes. For example, a "giant hurricane" significantly more powerful than Hurricane Hattie (Category 5) has been identified in Belizean sediment, having struck the region sometime before 1500.