Geography
| Natural hazards | ||||
|---|---|---|---|---|
| Hazard | Percentage | |||
| Earthquake | 40% | |||
| Flood | 70% | |||
| Drought | 100% | |||
| Landslide | 0% | |||
| Volcono | 0% | |||
| Cyclone | 10% | |||
The neighbourhood is classified as a tropical dry forest bio-zone. Being a coastal city, Chennai had many sand ridges. During the 16th century, the sea level rose and inundated lands within the settlements. When the sea withdrew, lagoons and ridges were left behind. One such ridge ran from the mouth of River Cooum to the present site of the Presidency College. On the rear side was a huge depression, where the college grounds have been built now. The ridge is the present Marina beach. Further south, a U-shaped ridge ran along Besant Road and Lloyds Road enclosing the Ice House. Parthasarathy Temple is just by the northern area of this ridge. Mount Road, now Anna Salai, ran along a tank bund and was at a high level. To the east of it, the land fell gradually, where Triplicane High Road and the Luz were formed.
Triplicane is succeptable to strong (vi) earthquakes, with occurrences at 5 to 6 Richter. On average, it receives one tremor every 50 years. However, the impact may be low. The neighbourhood is prone to periods of extreme droughts. The risk of flooding is medium-high, and chances of cyclones are low.
Read more about this topic: Triplicane
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