8.0mw
1985 Mexico City Earthquake
Sensitivity zones:
strong — up to 183.9 km
moderate — up to 459.6 km
weak — up to 1021.4 km
About this earthquake
The rupture lay off the Pacific coast, 350 km from Mexico City, but the soft lakebed soils beneath the capital amplified the shaking dozens of times, collapsing hundreds of multi-storey buildings. The disaster became the classic case of soil resonance and changed building codes worldwide.
Sensitivity zones
Approximate radii, derived from magnitude and hypocentre depth, within which shaking is typically felt:
- strong — up to 183.9 km
- moderate — up to 459.6 km
- weak — up to 1021.4 km
"I felt it" reports
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