Science and Technology The Amazonian pororoca is losing strength; the four-meter giant wave that advanced against the river current hasn’t appeared with intensity since 2020. Deforestation and silting are destroying the balance that created the phenomenon, and scientists warn that it could disappear. Maria Heloisa Barbosa Borges 04/05/2026 at 18:22
Interesting facts Giant Waves Also Hit Rivers and Lakes: Megatsunami, Seiche, and Pororoca Surprise Sara Aquino 01/03/2026 at 23:19
Interesting facts The Phenomenon of Pororoca in the Amazon: Waves Up to 4 Meters High Travel More Than 30 Km Upstream, Making the Amazon “Seem to Flow Backward” with Noise Heard Over 10 Km Away Valdemar Medeiros 13/10/2025 at 10:50
