Primary document
O Terramoto de 1755, a Torre do Tombo e Manuel da Maia
Arquivo Nacional Torre do Tombo
Where this source supports the record
Each entry separates the article’s editorial relevance note from its exact, section-level claims. A bibliography link without a direct claim is labeled plainly.
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Natural disasters · 1 November 1755Open article references →
Lisbon Earthquake, Tsunami, and Fire
Baixa and Praça do Comércio · Portugal
Why editors use it hereNational archive exhibition connecting damage, surviving records, engineering surveys, and Manuel da Maia's rebuilding work.
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Quick read
On All Saints' Day in 1755, a powerful offshore earthquake struck Lisbon at about 9:40 in the morning.
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Trigger and conditions
A great earthquake offshore produced several long phases of shaking that threw down buildings and filled streets with debris.
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Uncertainty
No instruments measured the earthquake, so magnitude, offshore source, shaking duration, wave heights, and death totals are reconstructed from physical evidence and historical accounts.
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Why it matters
Lisbon transformed catastrophe into a new model of state-directed urban recovery.
Reviewed 5 August 2026
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Quick read