On the early hours of 1 January 2020, flash floods took place throughout the Indonesian capital of Jakarta and the metropolitan area. Water levels reached 30-200 cm in many parts of the city, even standing at four meters in some areas. More than 397,000 people were evacuated to higher grounds. Due to landslides, hypothermia, drowning and electrocution, officials reported the death toll at 60 on 4 January 2020.
A significant contributing factor is that a significant part of Jakarta is low-lying, some 24,000 ha (240 km2) of Jakarta’s main part are below sea level. If heavy rain combines with high tides, flooding can become serious. The high tides push water into low-lying areas when this occurs, coinciding with the rain runoff in upland areas flowing down into the Jakarta region.
One of the most famous and recurrent calamities in the ancient world was flooding. People therefore saw the wrath of gods in them and begged for safety.
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