A south-central Kansas county has been shaken by its second minor earthquake in two days.

The U.S. Geological Survey says a quake with a magnitude of 3.3 rattled Sumner County just after 8 a.m. Tuesday. The tremor was centered about 11 miles northwest of Caldwell – a few miles from where a 3.9-magnitude earthquake was recorded around 3 a.m. Monday.No damage was reported from either quake, but viewers told KWCH-TV that their windows rattled Tuesday morning.

A 3.8-magnitude earthquake shook the same vicinity Dec. 16. 

Small earthquakes in southern Kansas have become more common, with more than two dozen recorded over the past two years. The area has been the site of increased oil and gas drilling since 2011. Scientists disagree on whether that causes the earthquakes.

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Information from: KWCH-TV