Nargis tracked unusually eastward into the Irrawaddy Delta, a densely populated area of rice farming and fishing villages barely above sea level. The surge pushed up to 40 kilometres inland.
Around 138,000 people were killed or listed missing and 2.4 million were severely affected. The response became internationally contentious when Myanmar's military government initially restricted foreign aid access, delaying relief by weeks.
The disaster is a standard case study in how governance and access, not just hazard strength, determine humanitarian outcomes.
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 Cyclone Nargis alongside current events is how preparedness improves.
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