Final answer:
Jacmel is the city closest to the epicenter of the 2010 earthquake in Haiti based on its position nearest to the center of the concentric rings on the map.
Step-by-step explanation:
The city closest to the epicenter of the 2010 earthquake in Haiti, based on the provided map with concentric rings, is Jacmel. When an earthquake occurs, the epicenter is the point on the Earth's surface directly above where the earthquake starts, known as the focus or hypocenter. The position of Jacmel, being closest to the center of the concentric rings on the map, indicates that it is closest to the epicenter. Other cities like Saint-Marc, Hinche, Les Cayes, and Gonaïves are labeled further out from the center, indicating that they are farther away from the epicenter of the earthquake.