Report No. : GEO Report No. 14

Report Title : Hong Kong Rainfall and Landslides in 1990 (1992), 78 p. plus 1 drg. (Reprinted, 1995)

Author : K.Y. Tang

Abstract

This report presents a general review of rainfall and landslides in Hong Kong in 1990 and provides details of the notable landslides. In summary, rainfall during 1990 can be considered as normal. The total rainfall in 1990 was eight percent below the average amount. The wettest month in 1990 was June, followed by September. The rainfall in June was slightly higher than the average. The rainfall in September was 28 percent above average. The rainfall in the rest of the months in the wet season (May to September) was all slightly below average. Over the whole year, three Landslide Warnings were issued. There were 105 landslides and related incidents reported to the GEO District Divisions and the damages resulting from these incidents are: 78 squatter huts were evacuated, two buildings were temporarily evacuated and sixteen sections of road/access were blocked. Many of these incidents occurred during the two heaviest storms of the year on 30th June to 1st July and 10 – 11th September and Landslide Warnings were issued on both occasions.

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