Mount Sinabung, located on Indonesia’s Sumatra island, erupted nearly 80 times over the weekend, displacing thousands of people and engulfing an area more than three miles from the mountain’s peak in life-threatening clouds of hot ash and gas. The evacuation zone originally covered a five kilometer (3.1 mile) radius, but has been stretched to seven kilometers, and could be extended further.

Indonesia is home to more active volcanoes (nearly 130) than any other country on earth. About 20,000 people have already been evacuated due to the country’s latest volcanic eruption, a number which could easily wind up being far higher.

With fiery smoke still billowing from the mountain’s peak, lava streaming down its sides, and entire towns covered in ash, the scene on Sumatra is frightening.

Getty Images/Ulet Ifansasti Here, hot lava is seen running down Mount Sinabung from a lava dome on Jan. 5.

Reuters/Roni Bintang A zoomed out look shows the lava making its way well down the mountain.

Getty Images/Ulet Ifansasti Hot ash reached as high as 4,000 meters (2.5 miles) in the air over the weekend.

Getty Images/Ulet Ifansasti Entire fields have been engulfed in potentially deadly smoke.

AP Photo/Binsar Bakkara Dozens of villages have been displaced.

AP Photo/Binsar Bakkara That has left some residents no choice but to look on from afar.

Reuters/YT Haryono The mess the volcano has left in its wake spans miles of ash-covered roads, villages, and farmland.

Getty Images/Ulet Ifansasti Much land has also been left scorched by hot ash, smoke, and lava.

AP Photo/Binsar Bakkara Little in the surrounding land has been left untouched.