Once the dust settled and the students got to their feet they started clambering out of the hole
The group of boys and girls were huddled together in a tight group, jumping up and down in unison to music when the ground cracked and a crater formed.
A video of the disaster was uploaded to TikTok on December 17 with a caption, written in Spanish: 'Prom night turns to tragedy.'
The incident was covered by the Peruvian newspaper El Popular, which reported that there were no fatalities, but it is not clear if there were any severe injuries.
The traumatic collapse happened the San Martin region of Peru, around 200 miles north of Lima, the country's capital.
It takes few seconds after the collapse for the the students to get back to their feet and for the cloud of dust and rubble to clear, revealing the smartly dressed youth, most of which had dropped their celebratory sausage balloons.
Later somebody placed a ladder into the hole, which appeared to be about six or seven feet deep, while another man lay on the ground surrounding the pit offering an arm to heave people up.
The young men courteously allowed their female dance partners in long dresses to leave the pit first.
