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 · 19 September 1985Open article references →
Mexico City Earthquake
Tlatelolco disaster and memorial area · Mexico
Why editors use it hereUniversity science account of shaking, damage, citizen response, research, monitoring, and code changes.
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Quick read
At 7:19 on 19 September 1985, a great subduction earthquake off Mexico's Pacific coast produced prolonged, amplified shaking in Mexico City.
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Trigger and conditions
A long rupture began along the Cocos and North American plate boundary near the Michoacan coast.
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Uncertainty
Magnitude is reported as 8.0 or 8.1 depending on scale and catalog.
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Why it matters
The 1985 earthquake links geophysics with the social construction of risk.
Reviewed 4 August 2026
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Quick read