About Ambang
Ambang is a complex rising to 1,795 meters (5,889 feet) in Indonesia's Western Pacific Volcanic Regions. It has been active in recent decades, with its last eruption in 2005 CE. The volcano has produced 2 recorded eruptions, with a maximum Volcanic Explosivity Index (VEI) of 1.
Geography & Climate
Ambang is located in Indonesia, within the Sangihe Volcanic Arc of the broader Western Pacific Volcanic Regions. Situated at 0.75° N, 124.42° E in the Northern Hemisphere, the volcano lies within a tropical climate zone. With a summit elevation of 1,795 meters above sea level, Ambang is a moderately sized peak that remains accessible to hikers and researchers for much of the year. The volcanic landform is characterized as a composite, which describes the physical shape and structure of the volcanic edifice as observed from the surface.
Geological Context
Ambang sits in a subduction zone, where one tectonic plate dives beneath another, creating intense heat and pressure that generates magma. Subduction zones are responsible for many of the world's most explosive volcanoes and deadliest eruptions. For communities in Indonesia near Ambang, this tectonic setting means the volcano is capable of producing powerful explosive eruptions, pyroclastic flows, and lahars that can threaten populated areas within tens of kilometers of the summit. The dominant rock type is andesite / basaltic andesite, a dark, fine-grained volcanic rock that forms from rapidly cooling, low-viscosity lava. Basaltic eruptions tend to be less explosive and produce fluid lava flows that can travel long distances. While less immediately dangerous than explosive eruptions, basaltic lava flows can destroy structures and infrastructure in their path, and volcanic gases released during these eruptions can affect air quality over a wide area.
Eruption History Summary
Ambang has 2 recorded eruptions in the geological database, spanning from 1845 CE to 2005 CE. The most powerful recorded event was a gentle, effusive event in 2005 CE, reaching VEI 1 on the Volcanic Explosivity Index. These eruptions span roughly 160 years of volcanic history. With eruptive activity as recently as 2005 CE, Ambang remains an actively monitored volcano.
GVP Reference Summary
The compound Ambang volcano is the westernmost of the active volcanoes on the northern arm of Sulawesi. The stratovolcano rises 750 m above lake Danau. Several craters up to 400 m in diameter and five solfatara fields are located at the summit.
— Smithsonian Institution, Global Volcanism Program
2 Recorded Eruptions
| Year | VEI | Type | Area |
|---|---|---|---|
| 2005 | 1 | Confirmed Eruption | — |
| 1845 | — | Confirmed Eruption | — |
Real-Time Data
USGS Alert Level
Thermal Anomalies
Frequently Asked Questions About Ambang
Is Ambang an active volcano?+
Yes, Ambang is considered an active volcano. Its most recent eruption was in 2005 CE. The volcano is monitored by geological agencies, and its activity status is based on observed eruptions within recorded history.
When did Ambang last erupt?+
The most recent recorded eruption of Ambang occurred in 2005 CE with a Volcanic Explosivity Index (VEI) of 1. The eruption was classified as a "Confirmed Eruption." Ambang has 2 recorded eruptions in total.
How high is Ambang?+
Ambang has a summit elevation of 1,795 meters (5,889 feet) above sea level. At 1,795 meters, it is a moderately sized volcanic peak, roughly comparable to Mount Vesuvius (1,281m).
What type of volcano is Ambang?+
Ambang is classified as a Complex. Complex volcanoes have distinct geological characteristics that set them apart from other volcanic types.
Where is Ambang located?+
Ambang is located in Indonesia, in the Western Pacific Volcanic Regions. More specifically, it lies within the Sangihe Volcanic Arc. Its exact coordinates are 0.750° latitude, 124.420° longitude.
Is it safe to visit Ambang?+
Visiting Ambang requires checking current volcanic activity and alert levels. As an active volcano with eruptions as recent as 2005 CE, conditions can change rapidly. Always consult local geological authorities and follow official warnings before visiting. Many active volcanoes have designated safe viewing areas and guided tour options.
