Witnesses at the site, who are seeking shelter in Kanazawa, Ishikawa's capital, said the mountain above their home collapsed and engulfed all the houses below it. They added that there is a shortage of emergency supplies, including fuel, food and drinking water, in evacuation centers.

The full extent of damage and casualties remains unclear three days after the quake, which is already the deadliest in Japan since at least 2016. Nearly 600 tremors continue to hit the peninsula, raising fears of landslides and further damage to the infrastructure.