Last year, the National Center for Monitoring and Alerting of Natural Disasters (Cemaden), a research unit linked to the Ministry of Science, Technology and Innovation, issued 3,620 disaster alerts — highest number since monitoring began in 2011.
In 2024, there were registered 1,690 disasters ; third highest record in the series. The year was marked by floods in Rio Grande do Sul, which left thousands of people homeless.
Around half of the alerts (53%) were of geological risk, such as landslides. The other alerts (47%) were associated with hydrological risks, such as floods and overflows of rivers and streams .
Two thirds of the alerts are of hydrological origin, which indicates the predominance of floods and flash floods, with emphasis on urban and more vulnerable areas, according to Cemaden.
Most affected regions
The alerts and incidents recorded by Cemaden were concentrated in the large metropolitan regions of Brazil, such as São Paulo (SP), Belo Horizonte (MG), Rio de Janeiro (RJ) and Salvador (BA).
In the ranking of municipalities, Manaus (AM) is the city with the highest number of alerts issued (50). Next are Belo Horizonte (MG) and São Paulo (SP), both with 41 alerts.
Among the cities with the highest number of disasters are Petrópolis (RJ) with 44 records, followed by Salvador (BA), with 33, and São Paulo (SP), with 27.
This content was originally published in Brazil breaks record for natural disaster alerts in 2024 on the CNN Brasil website.
Source: CNN Brasil
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