Create a 15-second ultra-cinematic, photorealistic disast...

Create a 15-second ultra-cinematic, photorealistic disaster sequence beginning during a beautiful sunny afternoon in a densely populated Mediterranean coastal city before a colossal volcano erupts violently above the skyline.  The camera must remain in one continuous fluid shot with no cuts.  0-3 sec: Begin gliding through a lively seaside boulevard.  Tourists photograph colorful buildings.  Waiters serve coffee beneath striped umbrellas.  Scooters weave between parked cars.  A small yellow delivery van drives beside the waterfront.  The camera follows the van as a distant mountain begins releasing an enormous dark smoke column.  3-6 sec: A deafening volcanic explosion shakes the city.  Windows vibrate.  Coffee cups fall from tables.  A gigantic mushroom-shaped ash cloud expands above the volcano.  Glowing volcanic projectiles arc across the distant mountainside.  People abandon cafés and flee.  6-9 sec: Powerful earthquake tremors fracture the boulevard.  Building facades crumble.  Streetlights fall across traffic.  Thick volcanic ash begins raining onto rooftops.  The van accelerates through a shower of glass and masonry.  9-12 sec: A massive pyroclastic density current pours down the distant mountain slopes.  A highway overpass buckles behind the van.  Vehicles collide as visibility disappears beneath swirling ash.  The camera races beside the van as the advancing volcanic cloud overwhelms the outer neighborhoods.  12-15 sec EPIC CLIMAX: The camera swings ahead of the van and cranes dramatically upward.  Behind it, a colossal volcanic eruption column towers kilometers into the atmosphere.  The mountain releases another enormous explosive blast.  Glowing debris rains across the outskirts while a vast ash cloud rolls toward the coastal city.  The camera rises to reveal the entire metropolis beneath an expanding volcanic storm.  Style: believable volcanic physics, monumental geological destruction, realistic ash and debris, Mediterranean urban detail, terrifying natural scale, continuous immersive camera movement, photorealistic 4K, 16:9.1