Characterization of natural events and epidemics from Twitter: El Niño, Zika and Chikungunya

During the years 2015 and 2016, one of the natural events which attracted the community's interest was El Niño phenomenon, in addition, two health emergencies caused alarm in the population: Zika and Chikungunya. In this paper, authors present the main characterization of the data collected from Twitter during the last manifestation of these events. According to the results obtained, the impact was beyond of the affected areas. Furthermore, the characterization included the temporal distribution, the identification of users and most popular subjects. The authors of this work continue to work on the analysis of data collected in order to find patterns of interaction and user' behavior in relation to health and environmental issues.