Recent renewed eruptions from Mount Ruang, a 725-meter volcano on Ruang Island in North Sulawesi, Indonesia, have led to fresh evacuation orders and disruptions to air travel. The volcano has been intermittently erupting since mid-April, posing increasing risks to nearby residents and air traffic in the region.

On Tuesday, Mount Ruang erupted three times, spewing lava, ash clouds, and volcanic gases into the sky. Indonesia's national PVMBG volcanology agency raised its alert level to the highest, warning of potential tsunamis triggered by volcanic material collapsing into the ocean. Authorities on Tagulandang island have urged over 12,000 people to evacuate due to the volcanic threat.

The eruptions have resulted in the closure of at least seven airports, including the Sam Ratulangi International Airport serving Manado, the capital of North Sulawesi. Schools nearby have been closed to protect children from volcanic ash exposure.

Mount Ruang is a stratovolcano known for its steep-sided, conical shape, which produces explosive eruptions due to the buildup of gas in the magma. The volcanic ash has even reached eastern Malaysian airspace, leading to flight cancellations by airlines like Air Asia and Malaysia Airlines.

Indonesia, with over 120 active volcanoes, is located along the Ring of Fire and is prone to volcanic activity. Mount Ruang's previous eruption in April disrupted hundreds of flights and prompted evacuations due to fears of a potential collapse triggering a tsunami, similar to an event in 1871.