Copper Country Shaken On July 26, 1905, the quiet towns of Michigan’s Keweenaw Peninsula experienced a startling natural event that left a lasting mark on the region’s history. The Keweenaw Peninsula earthquake, estimated at VIII on the Mercalli Intensity Scale—equivalent to about a 5.0 to 5.9 on the Richter Scale—rattled the area, toppling chimneys, breaking windows, and sending tremors far beyond the immediate vicinity. Residents from Calumet to Copper Harbor and as far east as Marquette felt the shaking, causing such fear that many copper miners refused to descend into the mines for their night shifts. The 1905 quake was… Read More »












