• Two subtropical systems active simultaneously in South Atlantic, first such overlap documented in modern monitoring era

    ByRishav Kothari

    Subtropical Storm Caiobá formed off southern Brazil on March 2, 2026, after two subtropical depressions developed simultaneously in the South Atlantic. According to Metsul Meteorologia and available South Atlantic cyclone records, no previous instance of simultaneous subtropical depressions has been documented since formal monitoring and classification began. Caiobá moved away from the coast of Brazil without any major impacts.

  • Shallow M6.2 earthquake hits southwest of Africa

    ByTeo Blašković

    A strong and shallow earthquake registered by the USGS as M6.2 hit southwest of Africa at 05:36 UTC on May 30, 2025. The agency is reporting a depth of 10 km (6.2 miles). EMSC is reporting the same magnitude and depth.

  • Tropical Storm “Akará” forms off Rio de Janeiro as first TS in South Atlantic since 2019

    ByTeo Blašković

    On February 16, 2024, the Brazilian Navy identified a subtropical depression ESE of Rio de Janeiro, which intensified into Tropical Storm “Akará” by February 19. Akará is the first named tropical storm to develop in the South Atlantic Ocean since Iba in 2019 and the basin’s first named storm in February since Bapo in 2015. The system is expected to continue intensifying, but remain well away from Brazil.

  • Strong and shallow M6.7 earthquake hits Bouvet Island region

    ByTeo Blašković

    A strong and shallow earthquake registered by the USGS as M6.7 hit Bouvet Island region, South Atlantic Ocean at 18:53 UTC on October 10, 2017. The agency is reporting a depth of 10 km (6.2 miles). This is the second M6+ earthquake within 24 hours. The epicenter was…