Greece wildfire burned 111,000 acres, released energy of six Hiroshima bombs

A massive wildfire in Greece's Attica and Boeotia regions has been analyzed, revealing its devastating scale and the extreme conditions that fueled its rapid spread. Preliminary data from the meteo FLAME pyro-meteorological team shows the fire consumed 111,732 acres in roughly 91 hours, from July 31 to August 4, 2026.

The most intense destruction occurred over two nights, August 1 and 2, when 61,718 acres, or 55% of the total area, were lost. This rapid expansion was driven by gale-force winds, exceeding 80 km/h on the first night and reaching 70 km/h on the second. During these periods, the fire's average spread rate surpassed 2,000 acres per hour.

The sheer energy released by the inferno was staggering. Satellite estimates indicate a total energy output of at least 380 terajoules (TJ), a figure comparable to the energy of approximately six atomic bombs dropped on Hiroshima. The fire ignited north of Agios Vasileios in Boeotia on July 31, 2026, and was propelled by strong northeasterly winds, initially spreading rapidly towards the coast.

Subsequent nights saw explosive growth, with the fire consuming nearly 34,000 acres in 12 hours on the night of July 31 to August 1, and another 27,810 acres on the night of August 1 to 2. These surges were attributed to wind speeds peaking over 130 km/h and 70 km/h respectively. While winds eventually subsided, allowing the fire to slow, the initial rapid spread and immense energy release underscore the catastrophic impact of the event.