Mount Marum
Malampa
Mount Marum is one of the two active volcanic cones located within the vast 12-kilometer-wide caldera on Ambrym Island in Vanuatu's Malampa Province. This basaltic volcano is famed for its persistent lava lakes, which have been a rare and mesmerizing geological phenomenon. The volcano's activity is part of the New Hebrides volcanic arc, and it has been the site of frequent eruptions over centuries, shaping both the island's landscape and local culture. The caldera itself was formed by a massive Plinian eruption around AD 50, making the area a unique geological site. Mount Marum, along with its neighboring cone Mount Benbow, contributes to Ambrym's reputation as one of the most active volcanic regions in the world. The volcano's lava lakes were even captured by Google Street View in 2017, offering virtual access to its fiery craters. Despite the dangers, the volcano draws tourists interested in volcanology, natural beauty, and indigenous customs. The surrounding island is covered mostly by dense jungle, except for human settlements, and supports diverse birdlife recognized by BirdLife International. Visitors experience a remote, wild environment where nature's power is vividly on display.
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Tip: The best time to visit Mount Marum is during dry months when access is safer and volcanic activity is more visible. Visitors are advised to book guided tours with local experts for safety and cultural insights. Due to the volcano's active nature, checking recent activity reports and securing necessary permits or permissions beforehand is recommended. There are no hotels on Ambrym Island, so accommodations are typically traditional bungalows. Advance planning is essential to ensure a safe and rewarding visit.
Interesting facts
- •Mount Marum hosts one of the world's rare lava lakes, a geological phenomenon seen in very few volcanoes globally.
- •The caldera on Ambrym Island is approximately 12 kilometers wide and was formed by a massive eruption rated 6 on the Volcanic Explosivity Index.
- •Mount Marum and nearby Mount Benbow are part of the New Hebrides volcanic arc, known for frequent and sometimes destructive eruptions.
- •Google Street View included the Marum crater and its lava lakes in 2017, providing virtual access to this remote volcanic site.
History
Mount Marum lies within a massive caldera formed by a colossal Plinian eruption around AD 50, which was one of the largest volcanic explosions in recent geological history.
The island's volcanic activity has been ongoing for centuries, with frequent eruptions shaping the landscape.
Mount Benbow, the other active cone nearby, last erupted explosively in 1913, causing significant local damage.
The volcano's persistent lava lakes have been monitored scientifically to predict eruptive activity.
In recent years, eruptions and fissure activities have altered the appearance of the lava lakes, including their disappearance after a fissure eruption in 2018.
Place Guide
Marum Crater
The main crater of Mount Marum, famous for its active lava lakes that provide a rare and spectacular view of molten lava in motion. It is a key feature attracting volcanologists and adventurous tourists alike.
Ambrym Calderacirca AD 50
A massive 12-kilometer-wide caldera that hosts Mount Marum and Mount Benbow, formed by a colossal eruption around AD 50. It represents one of the largest volcanic calderas in the Pacific region.