[REVISION HISTORY]

Sea level oscillations in the Balearic Islands

Updated 1 time since CLSTR started tracking revisions of this situation.

What changed

2026-08-25 09:36 UTC → 2026-08-29 13:24 UTC · added ~~removed~~

The Balearic Islands have been impacted by ‘rissagas’—meteorological phenomena causing sudden sea-level oscillations, often referred to as mini tsunamis. Unlike traditional tsunamis, these surges are triggered by rapid changes in atmospheric pressure rather than seismic activity. In ~~Menorca, alerts were issued for oscillations reaching up to 1.2 meters. In~~ Ibiza, specifically Sant Antoni de Portmany, the surge hit s’Arenal beach, flooding streets and restaurants. The seawater damaged technical equipment, coolers, and bar supplies. Due to electrical hazards and security concerns, the local ~~authorities~~ government cancelled a scheduled tribute ~~concert,~~ concert for the Sant Bartomeu festivities, though some traditional ~~festivities~~ celebrations and fireworks continued. In Mallorca, the phenomenon affected several ports, including Alcudia, Andratx, Soller, and Port Adriano, with seawater flooding sections of the beachfront promenade in Puerto ~~Alcudia.~~ Alcudia and reaching outdoor dining spaces. The situation became more pronounced in Menorca. While initial alerts predicted oscillations of up to 1.2 meters, later reports indicated that water levels in the ~~surges caused significant disruption~~ port of Ciutadella fluctuated by up to ~~coastal infrastructure~~ 1.44 meters. On the night of August 28, the Bay of Santandria was completely flooded, causing water to enter the ground floors of hotels and ~~tourism,~~ businesses. Emergency services were required to pump out water, though no reports of damage to yachts or immediate injuries have been ~~reported.~~ confirmed.

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