Gangtok: Most of the buildings in and around
Gangtok and adjoining areas devastated by the September 18
earthquake were built on land with a fragile sub-surface, the
Geological Survey of India on Thursday said.
The GSI submitted a report to the Sikkim government on
the earthquake which claimed over 75 lives.
"Most of the damage was to buildings in and around
Gangtok and the adjoining areas as the rock below was very
fragile," Director, GSI (Sikkim Unit), K Premchand said.
"Another cause was the heavy construction. In future,
people should construct less floors and take permission from
structural engineers," he said.
According to Premchand, slight tremors would continue for
over a month which was natural.
After the earthquake, GSI officials visited all the
affected villages to assess damage and collected data from the
seismic stations in the state.
The reports have been sent to the Earthquake Geology
Division of GSI in Shillong for interpretation, which was
awaited, Premchand said, adding the full report would be
submitted within this month.
He said he recently visited north Sikkim and saw that
there were major damage to mainly to the Mangan-Chungthang,
Chungthang-Lachen and Chungthang-Lachung roads, which were
littered with landslides triggered by the earthquake.