The landslide occurred Saturday mid-morning after days of heavy rain in Atami.
大雨：heavy rain/torrential rain/downpour/cataract/delugeなど
Search and rescue efforts continue in Atami City, Shizuoka Prefecture, where deadly mudslides on July 3 have left at least 9 people dead and damaged about 130 buildings.
On July 3th in Atami, Shizuoka prefecture, there was a “debris avalanche” where soil and rocks from a mountain collapsed by rain flows.
土石流：debris flood/debris flow/mudflow/mudslide/mudspate/river of mud and rocksなど
見出し：landfill soil may have triggered the disaster
Local authorities suspect the massive Atami mudslide was exacerbated（悪化した） by about 54,000 cubic meters of soil that had been brought to a mountainside for construction work.
An accumulated mound of soil, situated around the uppermost portion of a river, is believed to have increased the damage caused by the mudslide in Atami.
The causal relationship between the mound of soil and the slope collapse must be clarified.
In the surrounding area, solar panels have been installed and residential land development is in progress. If trees are cut down, the water retention capacity of soil decreases.
The prefectural and municipal governments announced the names of 64 people whose whereabouts could not be confirmed.
This is because many houses in the disaster-hit area are used as vacation homes, making it difficult to confirm the safety of the missing.
As a result of the announcement, the whereabouts of more than 40 people reportedly have been confirmed.
The appropriate disclosure of information has led to prompt confirmation of the safety of the missing.
The publication of names is useful in narrowing down the scope of a search in time-sensitive situations.
Critical 72-hour window passes in search for Atami mudslide survivors（見出し）
The end of the three-day window seen as crucial for finding survivors of a large mudslide in Shizuoka Prefecture passed Tuesday, as local authorities revised the number of people considered missing from 64 to 27 and the death toll rose by three to seven.
The initial 72-hour period elapsed at around 10:30 a.m. in the city of Atami, where 1,100 firefighters, police and Self-Defense Forces personnel continued to remove debris and search mud-swamped houses.