Home » Coastal tidal gauges are placed ………km away from seashore to detect Tsunami near seashore? Natural Disasters MCQs Coastal tidal gauges are placed ………km away from seashore to detect Tsunami near seashore? January 29, 2022 41 Views Q. Coastal tidal gauges are placed ………km away from seashore to detect Tsunami near seashore? A. 100 B. 75 C. 50 D. 25 Answer: C) 50 km