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The 1960 Valdivia earthquake and tsunami (Spanish: Terremoto de Valdivia) or the Great Chilean earthquake (Gran terremoto de Chile) on 22 May 1960 was the most powerful earthquake ever recorded. Most studies have placed it at 9.4–9.6 on the moment magnitude scale, [1] while some studies have placed the magnitude lower than 9.4.
Chile lies in a region which is adjacent to the fast-moving Nazca Plate, and has high tectonic activity.The records for earlier centuries are apparently incomplete. Of the world's 46 known earthquakes with M ≥ 8.5 since the year 1500, one-third occurred in Chile [citation needed] and are shown in the map to the side.
The 1960 Concepción earthquakes were a succession of three destructive earthquakes that happened between 21 and 22 May 1960. They formed part of the foreshock sequence for the 1960 Valdivia earthquake, the largest recorded earthquake in history. [6] The first was on May 21 at 06:02 UTC-4. [3] [7] Its epicenter was near Cañete, Bío Bío ...
On May 22, 1960, south-central Chile suffered the most powerful earthquake ever recorded, rating 9.5 [8] on the Moment magnitude scale, with Valdivia being the most affected city. The earthquake generated devastating tsunamis that affected Japan and Hawaii .
22 May – occurs the 1960 Valdivia earthquake With a magnitude of 9.5 MW, it is the largest recorded in the history of mankind Its epicenter was the city of Valdivia and mainly affected the area between Talca and Chiloé Archipelago The earthquake was felt in different parts of the planet and produced both a tidal wave —which affected various locations throughout the Pacific Ocean such as ...
The largest recorded megathrust earthquake was the 1960 Valdivia earthquake, estimated between magnitudes 9.4–9.6, centered off the coast of Chile along the Peru-Chile Trench, where the Nazca Plate subducts under the South American Plate. [26] This megathrust region has regularly generated extremely large earthquakes.
Two days after the main shock of the 1960 Valdivia earthquake, the largest earthquake recorded in history, Cordón Caulle erupted. [17] The eruption was believed to have been caused by the earthquake. [17] The earthquake had struck the whole of Chile between Talca (30°S) and Chiloé (43°S) and had an estimated moment magnitude of 9.5.
Pedro de Valdivia Bridge is named in honour of the Spanish conquistador Pedro de Valdivia. It was ready for use in 1954 and survived the 1960 Valdivia earthquake, the greatest earthquake ever recorded, [1] while nearby buildings collapsed. After the earthquake it survived the effects of the Riñihuazo, a flooding caused by the earthquake.