Earthquakes

Kansas is not known for earthquake activity, but Manhattan is near the Nemaha Ridge, a long structure bounded by several faults, and which is still active. In particular, the Humboldt Fault Zone lies just 12 mi eastward of Tuttle Creek Reservoir.

On April 24, 1867, the 1867 Manhattan earthquake struck Riley County. Measuring 5.1 on the Richter magnitude scale,

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