Postcard
Santa Ana, El Salvador's highest volcano, is a
massive, 2381-m-high stratovolcano that rises immediately west of Coatepeque
caldera.
A volcano caldera is a depression in the ground
created by the collapse of land after a volcanic eruption. In some cases, the
caldera is created slowly, when the ground sinks down after a magma chamber is
emptied. In other situations, the magma explodes violently, and the caldera is
the deep pit in the ground that remains after the volcano blows its top off.
Stamps
(left) The stamp is from a set of 2 stamps issued in
2008 under the theme "82 years of radio communication".
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