Abstract
Aerial photographs were used to decipher buildings that collapsed, were buried, washed
away, or were deformed by the sediment disaster that occurred with the 2024 Noto Peninsula
earthquake (referred to as “collapsed buildings” in this report). In addition, the occurrence of
human damage was estimated based on newspaper and television reports and various
geographical information. 37 collapsed buildings were decoded, and 26 people were estimated
to be dead or missing in at least five of these locations. 34 of the 37 collapsed buildings were
located in areas where hazard maps indicate a risk of sediment disasters, such as sedimentrelated
disaster risk areas. Sediment-related disaster risk areas are designated in anticipation of
sediment disasters caused by heavy rainfall. However, the results of this survey suggest that
information on sediment-related disaster risk areas may also be useful for earthquake-induced
sediment disasters.
