🌋VolcanoAtlas

Momotombo

Nicaragua's Iconic Volcanic Sentinel on Lake Managua

Elevation

1,270 m

Last Eruption

2016

Type

Stratovolcano

Country

Nicaragua

Location

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Volcanic Hazards & Risk Assessment

Primary Hazards

  • Pyroclastic flows
  • Lava flows
  • Volcanic bombs and ballistics
  • Lahars and mudflows

Risk Level

Population at RiskLow
Infrastructure RiskHigh
Aviation RiskSignificant

Geological Composition & Structure

Rock Types

Primary
Unknown
Silica Content
Varied composition

Tectonic Setting

Unknown
Intraplate setting with hotspot or regional volcanic activity.

Age & Formation

Epoch
Unknown
Evidence
Unknown

Eruption Statistics & Analysis

MetricValueGlobal RankingSignificance
Total Recorded EruptionsUnknownLowModerately active volcano
Maximum VEIVEI UnknownMinorLocal impact potential
Recent Activity10 years agoRecentRecently active

Monitoring & Alert Status

Monitoring Networks

Global Volcanism Program
International eruption database

Current Status

Watch
Dormant but monitored. Capable of renewed activity.

Other Volcanoes in Nicaragua

Interesting Facts

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Momotombo's 2015 eruption ended 110 years of dormancy — the longest quiet period in the volcano's recorded history.

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The original colonial capital of León, founded in 1524 at the base of Momotombo, was abandoned due to volcanic and seismic activity; the ruins of León Viejo are now a UNESCO World Heritage Site.

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Nicaragua's first geothermal power plant was built on Momotombo's southern flank, with a capacity of 35 megawatts, harnessing the volcano's internal heat for electricity.

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The Nicaraguan poet Rubén Darío, considered the father of Latin American literary modernism, immortalized Momotombo in his poetry.

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The 1905 eruption produced a lava flow that traveled from the 1,270 m summit all the way to the northeastern base of the volcano.

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Momotombito, a small cone rising from Lake Managua offshore of Momotombo, is a related volcanic feature that creates a picturesque island in the lake.

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The volcano began forming only about 4,500 years ago, making it one of the youngest stratovolcanoes in the Central American Volcanic Arc.

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Two VEI 4 eruptions — around 800 BCE and in 1605–1606 — demonstrate that Momotombo is capable of eruptions far more powerful than its typical Strombolian activity.

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Momotombo's near-perfect conical profile makes it one of the most photographed and recognized volcanic silhouettes in Central America.

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The volcano is visible from Managua, approximately 60 km to the southeast, where its cone punctuates the skyline above Lake Managua.

Frequently Asked Questions

Is Momotombo an active volcano?
Yes, Momotombo is an active stratovolcano. It most recently erupted in December 2015 through early 2016, ending a 110-year dormant period that had begun after the 1905 eruption. The 2015 reawakening produced dramatic Strombolian explosions and lava flows. The volcano has 22 recorded eruptions spanning approximately 4,500 years. Active fumaroles at the summit crater and a productive geothermal field on the south flank confirm ongoing heat from the magmatic system. Scientists consider future eruptions highly likely.
When did Momotombo last erupt?
Momotombo last erupted from December 1, 2015, through early 2016. The eruption produced incandescent Strombolian explosions from the summit crater, visible at night from cities across western Nicaragua, along with lava flows on the northwestern flank. Rated VEI 2, this eruption ended 110 years of dormancy that followed the 1905 eruption. The event triggered evacuations of nearby communities and attracted widespread media coverage as a dramatic example of volcanic reawakening.
What happened to León Viejo?
León Viejo (Old León) was the original colonial capital of Nicaragua, founded by Spanish conquistadors in 1524 at the base of Momotombo. The settlement was abandoned in the early 17th century due to repeated volcanic eruptions and earthquakes, with the capital relocated to its current site further northwest. The ruins were buried by volcanic deposits and largely forgotten until their rediscovery in the 20th century. Excavations revealed remarkably preserved colonial-era structures, and León Viejo was designated a UNESCO World Heritage Site in 2000.
How tall is Momotombo?
Momotombo rises to 1,270 m (4,167 ft) above sea level. While modest compared to some of the world's great volcanic peaks, the volcano's height is visually amplified by its position on the flat shores of Lake Managua and its near-perfect conical symmetry. For comparison, Nicaragua's tallest volcano, San Cristóbal, reaches 1,745 m (5,725 ft). Momotombo is notable not for its height but for its youthfulness — the entire edifice has been built in approximately 4,500 years.
Does Momotombo produce geothermal energy?
Yes, a geothermal power plant with a capacity of approximately 35 megawatts operates on Momotombo's southern flank, making it Nicaragua's first and one of its most important geothermal energy facilities. The plant harnesses heat from the volcano's subsurface magmatic system to generate electricity. Geothermal energy is a significant component of Nicaragua's renewable energy strategy. The plant's location on an active volcano presents both advantages (abundant heat) and risks (potential disruption from eruptions).
Is Momotombo dangerous?
Momotombo poses moderate risk to surrounding populations. The town of La Paz Centro (~35,000 people) lies about 20 km to the southeast, and communities along Lake Managua's shore are within hazard zones. VEI 4 eruptions in ~800 BCE and 1605–1606 demonstrate capacity for significant explosive events. Lava flows, pyroclastic fallout, and ashfall are the primary hazards. The geothermal plant on the south flank is also at risk. Ashfall from a larger eruption could reach Managua (population ~1 million), 60 km southeast.