Earthquake aftermath: Dozens take shelter from Japan quake aftershocks

At least 20 people, including one 2-year-old, were pulled from homes toppled by the magnitude-6.7 earthquake late Saturday night.

READ: 6.7 magnitude quake hits Japan; 39 injured, 37 homes destroyed

Seven of the injured had broken bones, many after being crushed by heavy furniture as they slept on their tatami floors.

Local experts said the structure of the mostly wooden houses, which are built to withstand loads of many feet of heavy, wet snow in the winter, helped prevent more casualties.

The red pointer shows Nagano prefecture in Japan. (Source: Google Earth)

Some said they used the flashlights on their mobile phones to find their way to safety in the pitch dark.

“Words cannot express my gratitude,” Kimito Tsutaki, 73, told national broadcaster NHK after she was pulled from her quilt bedding. Neighbors used a car jack to lift collapsed timbers from on top of her.

The quake, which struck west of Nagano city at a relatively shallow depth of 5 kilometers (3 miles), was in an area prone to strong earthquakes due to an active fault, experts of the Japan Meteorological Agency reported.

It reported nearly 80 aftershocks by midday Monday.