Central America has an area of 524,000 square kilometers (202,000 sq mi). It is almost 0.1% of the Earth’s total surface. In 2009 the population was estimated at 41,739,000. It has a density of 77 people per square kilometer or 206 people per square mile.
Central America is an area of some 524,000 square kilometres. The Pacific Ocean is on the southwest, the Caribbean Sea to the northeast, and the Gulf of Mexico to the north. Most of Central America rests on the Caribbean Plate.
The region is geologically active. It has volcanic eruptions and earthquakes from time to time.
The 1976 Guatemala earthquake killed 23,001 people. Managua, the capital of Nicaragua, was devastated by earthquakes in 1931 and 1972. The last one killed about 5,001 people. Three earthquakes hit El Salvador. The first one in 1986 and two in 2001. An earthquake devastated northern and central Costa Rica in 2009. It killed at least 35 people. In Honduras a powerful earthquake happened in 2009.
Volcanic eruptions are common. In 1968 the Arenal Volcano in Costa Rica erupted. This killed at least 87 people. The 3 villages of Tabacon, Pueblo Nuevo, and San Luis were buried under ash.
Central America has many mountain ranges; the longest are the Sierra Madre de Chiapas, the Cordillera Isabelia and the Cordillera de Talamanca. Most of the population of Honduras, Costa Rica and Guatemala live in valleys, between mountains.