Abstract
Disasters due to unusual tropical rainfall events subsequently occured in Venezuela and Mekong Delta in December 1999 and 2000. First, this paper briefly shows an aspect of causes and diffrent situations of these disasters taking 1) rainfall event and 2) degree of abnormality into considerations. Then this paper shows some comments on a) what is abnormality for the people in each place and b) what the pople can do, taking “human and field” and “regionallity on globe” into consideration based on feelings that we got through field surveyies.