One of the deadliest earthquakes in history occurred in the early morning of 23 January 1556 in Huaxian, Shaanxi, during the Ming dynasty.
Most of the residents there lived in yaodongs—artificial caves in loess cliffs—which collapsed and buried alive those sleeping inside. Modern estimates by China Earthquake Administration's publications put the direct deaths from the earthquake at roughly 100,000, while over 700,000 either migrated away or died from famine and plagues, which summed up to a total reduction of 830,000 people in imperial hukou registration.
Why this event still matters
Historical incidents shape the rules that protect people today — building codes, evacuation policy, warning systems and inspection regimes almost always trace back to a specific disaster. Studying 1556 Shaanxi earthquake alongside current events is how preparedness improves.
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