Global Volcanism Program | Image GVP-10699
An E-W-trending chain of volcanoes extends ca. 30 km across eastern El Salvador. The small light-colored dot at the left is Laguna de Alegria, a crater of the Tecapa volcanic complex. No historical eruptions are known from the eroded Usulután and El Tigre volcanoes. The 2-km-wide Laguna Seca el Pacayal caldera is a prominent feature of Chinameca volcano. San Miguel is one of El Salvador's most active volcanoes; the dark area at the lower right is a lava flow from the 1819 eruption. The city of San Miguel is at the upper right.
NASA Space Shuttle image STS61C-31-47, 1986 (http://eol.jsc.nasa.gov/).