Aoba Volcano
Aoba, also known as Ambae, is a massive 2500 cu km basaltic shield volcano that is the most voluminous volcano of the New Hebrides archipelago.
Aoba volcano eruptions: 2017, 2011, 2005
Latest nearby earthquakes
| Date and Time | Mag / Depth | Distance / Location | |||
|---|---|---|---|---|---|
| Nov 22, 01:23 am (Universal Time) | 2? 95 km | 8.6 km (5.3 mi) to the W | Info | ||
| Tuesday, November 18, 2025 GMT (1 quake) | |||||
| Nov 18, 12:23 pm (Efate) | 3? 130 km | 22 km (14 mi) to the SW | Info | ||
| Saturday, November 15, 2025 GMT (1 quake) | |||||
| Nov 16, 02:13 am (Efate) | 3? 133 km | 26 km (16 mi) to the N | Info | ||
| Friday, November 14, 2025 GMT (1 quake) | |||||
| Nov 14, 11:41 pm (GMT +11) | 2? 0 km | 16 km (10.2 mi) to the W | Info | ||
Background
A pronounced NE-SW-trending rift zone dotted with scoria cones gives the 16 x 38 km island an elongated form. A broad pyroclastic cone containing three crater lakes is located at the summit of the Hawaiian-style shield volcano within the youngest of at least two nested calderas, the largest of which is 6 km in diameter. Post-caldera explosive eruptions formed the summit craters of Lake Voui (also spelled Vui) and Lake Manaro Ngoru about 360 years ago. A tuff cone was constructed within Lake Voui about 60 years later. The latest known flank eruption, about 300 years ago, destroyed the population of the Nduindui area near the western coast.---
Smithsonian / GVP volcano information
Aoba Volcano Photos
Significant volcanic eruptions: Aoba volcano
Additionally, there are 2 uncertain or discredited eruptions from Aoba volcano.
| Date | Note | VEI | Deaths | Damage | |
|---|---|---|---|---|---|
Historical obs./docs. | ? | ||||
Historical obs./docs. | 2 | ||||
Historical obs./docs. | 2 | ||||
Historical obs./docs. | 1 | ||||
| Pyroclastic cone in Lake Voui Historical obs./docs. | 3 | ||||
| 2018 Mar 30 (eruption | Historical obs./docs. | 3 | 4 | moderate | Info |
| 2017 Sep 23 (eruption | Historical obs./docs. | 0 | light | Info | |
?? | Uncertain Eruption | ? | |||
| Lake Manaro Historical obs./docs. | 1 | ||||
| Lake Voui Historical obs./docs. | 2 | ||||
| Lake Voui Historical obs./docs. | 2 | ||||
?? | Uncertain Eruption | ? | |||
| 1914 (eruptive episode | Historical obs./docs. | 0 | 100 | Info | |
| 1870 (eruption | Historical obs./docs. | 2 | 100-1,000 (*) | heavy | Info |
| SE side Lake Manaro Lakua; Lake Voui? Historical obs./docs. | 2? | ||||
| 1670 AD (eruption | Historical obs./docs. | 2 | 100-1,000 (*) | Info | |
| Lake Voui and upper west flank | 2? | ||||
| Lakes Voui and Manaro Ngoru | ? | ||||
Aoba Volcano FAQ
+When was the last eruption of Aoba volcano?
The last confirmed eruption of Aoba occurred in 2024.
+How often does Aoba volcano erupt?
Since 1870, Aoba volcano has had at least 9 historically documented eruptions. This means that it erupts on average every 17.2 years.
Many eruptions of Aoba have lasted more than one year. In total, the volcano has been in eruption during 11 out of 155 years until now. In other words, Aoba has been active at least one in 14.1 years on average. Note that this value is likely an underestimate, because the known history of eruptions from Aoba is likely incomplete, especially further back in time.
+How active is Aoba volcano at present?
Aoba volcano is infrequently active: Since 1900, it has had 10 eruptions, and been active during 10 years out of 126 as of now. This means, Aoba has been in eruption one in 12.6 years on average. The last eruption was in 2024 and ended 17 months ago.
+When was the largest eruption of Aoba volcano?
The largest eruption of Aoba volcano in historic times occurred during 2017 - 2018. It ranks as a "vulcanian" eruption with a magnitude 3 on the VEI (Volcanic Explosivity Index) scale.
Latest satellite images
Aoba Volcano Maps




































