The warnings began quietly in September. Seismographs around Merapi registered increasing tremors, and observers at Babadan to the west and Kaliurang to the south reported hearing avalanches rumbling from the summit. White plumes rose above the crater. The lava dome, which had been inflating since March, began swelling at an accelerating rate. By mid-October, some 500 volcanic earthquakes were recorded in a single weekend, and magma had climbed dangerously close to the surface. On October 25, Merapi erupted three times in a single afternoon, spewing lava down its southern and southeastern slopes. The eruptions grew fiercer over the following days: ash fell on Yogyakarta, some 30 kilometers to the south, and roads clogged with cars and motorcycles as hundreds of thousands of residents fled. Black soot covered everything. The Javanese call pyroclastic flows wedhus gembel -- 'shaggy goat' -- for their billowing, tumbling appearance. What rolled down Merapi that October was no gentle animal.

The eruption escalated dramatically in early November. On the 3rd, pyroclastic flows traveled further than any in living memory, forcing the government to relocate its own refugee camps to safer distances. The energy output that day was three times greater than the initial eruptions a week earlier. Then came November 5th, a day volcanologists would later compare to the eruption of 1872. Bronggang, a village designated as a safe zone just 15 kilometers from the crater, was engulfed. Soldiers pulled at least 78 bodies from homes and streets buried under ash. Many of the dead were children from Argomulyo village. Hot ash clouds had raced down the mountain in pyroclastic flows at terrifying speed, outrunning anyone in their path. By November 9th, the eruptions had continued without pause for over 120 hours, surpassing the 1872 event that had long been considered Merapi's benchmark catastrophe. Officials expanded the exclusion zone to 20 kilometers, and the death toll climbed past 150, then 275, then beyond 300 as burn victims succumbed to their injuries in overwhelmed hospitals.

The eruptions did not just threaten the mountain's immediate slopes. Volcanic ash disrupted aviation across Java, closing Yogyakarta's Adisucipto Airport repeatedly and forcing flight cancellations at Jakarta's Soekarno-Hatta, nearly 500 kilometers away. International carriers including Garuda, AirAsia, and SilkAir suspended routes. The Darwin Volcanic Ash Advisory Centre issued code-red warnings as sulfur dioxide plumes drifted into the upper troposphere over the Indian Ocean. NASA's Aura spacecraft tracked the chemical signature from orbit. On the ground, Borobudur -- the 8th-century Buddhist temple and UNESCO World Heritage site roughly 30 kilometers west-southwest of the crater -- was blanketed in acidic ash, forcing its closure. Experts feared permanent damage to the ancient stone. The temple was cleaned and reopened, but the proximity of one of the world's greatest archaeological treasures to one of its most violent volcanoes remained an unsettling reminder of the landscape's dual character.

More than 350,000 people crowded into emergency shelters. Families were separated in the panicked exodus; volunteer coordinators scrambled to reunite children with their parents. Acute respiratory infections, eye irritation, and hypertension spread through the camps. At least 45 hospitals and over 100 health centers served victims across the districts of Sleman, Klaten, Magelang, and Boyolali, but medical supplies -- especially burn treatment -- ran short. Yogyakarta's Disaster Management Agency later reported some 800 cases of psychological trauma among survivors. The eruptions damaged 867 hectares of forest on Merapi's slopes, including the national park established around the volcano just six years earlier. Nine villages in Cangkringan district were subsequently declared a permanent sterile zone: no one would be permitted to live there again. International aid flowed in from Australia, the United States, the UAE, Malaysia, and Taiwan, but the scale of the disaster overwhelmed early response capacity.

By late November, the eruptions began to subside. On December 3rd, authorities lowered the alert from Level 4 to Level 3, though exclusion zones remained in place. The final death toll stood at 386. Merapi's profile had changed: the eruptions had destroyed the lava dome and lowered the summit, altering the silhouette that had defined the Yogyakarta skyline for generations. A museum was later expanded at Kaliurang to document the disaster. Today, Merapi smokes on. Small eruptions in 2018, 2021, 2023, and 2024 have each forced fresh evacuations, each time testing the relationship between the Javanese and the volcano they call the Mountain of Fire. The offerings still go up the slopes on the anniversary of the sultan's coronation. The seismographs still watch. And the villages still press close to the flanks of a mountain that has erupted regularly since 1548, because the volcanic soil is fertile, the spiritual ties run deep, and Merapi, for all its violence, is home.