performing or functioning in the best possible manner with the least waste of time and effort; having and using requisite knowledge, skill, and industry; competent; capable: a reliable, efficient assistant.
Marengo is a village in Morrow County, Ohio, United States. The population was 342 at the 2010 census. Marengo is south of Mount Gilead, the county seat.
Marengo-area historical earthquake activity is near Ohio state average. It is 84% smaller than the overall U.S. average. On 9/25/1998 at 19:52:52, a magnitude 5.2 (4.8 MB, 4.3 MS, 5.2 LG, 4.5 MW, Depth: 3.1 mi, Class: Moderate, Intensity: VI-VII) earthquake occurred 146.9 miles away from the city center.