Indonesia has suffered from another volcanic eruption after Anak Krakatau erupted last week. The volcano eruption caused a tsunami which hit the island, with the death toll reaching 400 people. It has since been warned that all flights are being rerouted after the danger level was raised to the second highest. Flights must abide by the three-mile exclusion zone and not fly over the volcano.

Air traffic control AirNav said in a statement: “All flights are rerouted due to Krakatoa volcano ash on red alert.”

However, it is hoped the majority of airports will not be affected by the rerouted flights.

Passengers travelling to Indonesia should check with their airline if their flight is in the next few days.

AirAsia, Garuda Indonesia and Emirates are some of the airlines that could be affected but have not yet issued an update.

National disaster agency spokesman Sutopo Purwo Nugroho warned: “The volcanic activity of Anak Krakatoa volcano located in the Sunda Strait continues to increase.”

Fears of another tsunami have been expressed with people near the coastline advised to stay at least 500 metres away.

Part of the volcano crater collapsed during high tide which resulted in the tsunami that hit the islands between Java and Bali.

Indonesia is prone to natural disasters due to its location on what is called the Ring of Fire.

The area in the Pacific Ocean is prone to earthquakes and volcanic eruptions due to the plate tectonics underwater.

This means 90 per cent world’s earthquakes occur in the Ring of Fire.

After a volcanic eruption, flights are often rerouted or suspended due to the problems they can cause planes.

The ash and volcanic glass can damage engines and result in engine failure.

In 1982, a British Airways flight was affected by volcanic ash over Mount Galunggung, with all four engines failing mid-flight.

Thankfully, after the ash broke out and melted from the engines, three of the engines came back on and the flight landed safely.

One of the worst disruptions to air travel was in 2010 when the Eyjafjallajökull volcano in Iceland erupted, resulting in millions affected across Europe.