Meteotsunami Kills One in Argentina: 30-Foot Wave Video
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Reports surfaced in early January 2024 of an unusually large wave – estimated at 30 feet – impacting the coast of Argentina, sparking discussion about the potential for a record-breaking meteotsunami. Meteotsunamis,while less understood than tsunamis generated by earthquakes,are meteorological phenomena capable of producing significant wave heights.
What are Meteotsunamis?
Meteotsunamis are standing waves caused by meteorological disturbances, such as severe thunderstorms, squalls, and storm fronts. These waves are distinct from tsunamis, which are typically triggered by underwater seismic activity.Meteotsunamis occur when atmospheric pressure disturbances travel faster than the speed of the resulting wave, causing constructive interference and amplification, notably in coastal areas with specific geographical features.
According to the national Oceanic and Atmospheric Administration (NOAA), meteotsunamis are generated when atmospheric disturbances create a wave that moves towards the shore and is amplified by a shallow continental shelf, inlet, bay, or other coastal feature.NOAA notes that observed meteotsunami heights typically reach 6 feet or more.
Example: In June 2023, a meteotsunami impacted Lake Michigan, causing waves up to 6 feet high and localized flooding.National Weather service – Chicago issued warnings about the event.
Argentina’s Coastal Conditions and the Reported Wave
Argentina’s coastline,particularly in the Buenos Aires province,features a relatively shallow continental shelf and several inlets and bays,conditions that can amplify meteotsunami waves. The reported 30-foot wave, if verified, would represent a significantly larger meteotsunami than previously documented.
Initial reports of the large wave originated from coastal communities in Argentina on January 6, 2024, with videos circulating on social media. Infobae reported that scientists attributed the event to a meteotsunami,but cautioned that further investigation was needed to confirm the exact cause and wave height.
Detail: The Argentine Navy’s Hydrographic Service is currently analyzing data to determine the precise characteristics of the wave and assess the potential for similar events in the future.Servicio de Hidrografía Naval is the official source for maritime data in Argentina.
Distinction Between Tsunamis and Meteotsunamis
Tsunamis and meteotsunamis are both capable of generating large waves, but their origins and characteristics differ significantly. Tsunamis are primarily caused by underwater earthquakes, volcanic eruptions, or landslides, displacing large volumes of water. Meteotsunamis, conversely, are driven by atmospheric disturbances.
The United States Geological Survey (USGS) explains that tsunamis have much longer wavelengths – frequently enough hundreds of kilometers – and travel at high speeds across the open ocean. USGS FAQ on Tsunamis and Storm Surges. meteotsunamis, while potentially reaching significant heights near the coast, typically have shorter wavelengths and lower speeds.
Evidence: The devastating Indian Ocean tsunami of 2004, triggered by a magnitude 9.1 earthquake, demonstrated the immense destructive power of tsunamis, with waves reaching heights of over 30 meters in some areas.