Arenal Volcano

Arenal Volcano is one of the most active volcanoes in Central America. It is located within the 29,960-acre Arenal Volcano National Park in Costa Rica. It is a stratovolcano with an altitude of 1,633 meters. This area is an important watershed for the Arenal Lake Reservoir.

The town of La Fortuna is the nearest town to the national park. Recent eruptions built a lava dome near this volcano. The temperature in the area ranges between 16°C in higher altitudes to 24°C in the lower altitudes.


Quick Facts: –

  • Arenal Volcano is the third most perfect conical shaped volcano in the world.
  • It had remained silent between 1500 and 1900. People started considering it extinct.
  • After remaining silent for these 400 years, this volcano erupted on July 29, 1968.
  • It became extremely active and kept spewing hot rocks, smoke, ash, and lava from its top.
  • Now it is considered the most active volcano in the region and has been studied by seismologists for many years.
  • This volcano lies along a volcanic chain where activity has migrated to the North-West over the past 2 million years.
  • Geologically, the Arenal Volcano belongs to the Sierra de Tilaran.
  • Every six to eight months, lava flow changes direction favoring the southwest or northwest slopes.
  • Between 1995 and 2008, the Arenal presented activity both eruptive and seismic.
  • The average annual rainfall in the area is around 5,000 millimeters.