Page 16 - Jabalpur_EQ

Introduction
Chapter 1

rience an amplified motion and this amplification varies with their dynamic
charcteristics. It is conjectured that the peak ground acceleration would have
been between 0.15 to 0.25g in most affected areas.

ECONOMC LOSS
It is rather difficult to estimate the extent of financial loss caused by the Jabalpur
earthquake. It is more cumbersome in an economy which is so fragmented and
disorganised. Moreover, the long term adverse impacts on the local economy due
to costs incurred in reconstruction and rehabilitation will be difficult to assess.
However, initial estimates of economic loss based on the reconnaissance survey
carried out by the Governmental agencies put the figure about Rs 1 500 millions.
Later on, this figure was revised upwards to Rs 5 000 millions (Nav Bharat May 24

&27,1997).

OBJECTIVES
The Department of Earthquake Engineering, University of Roorkee dispatched
authors to carry out the post-earthquake damage survey of the Jabalpur earth-
quake with the following objectives:

1. To observe and document the effect of earthquake on the built environ-

ment;
2. To disseminate the lessons learned from the earthquake to the earthquake
engineering profession;
3. To study the nature and extent of damage and degree of shaking for the
of
purpose assigning intensities to various localities;
4. To evaluate the existing design and construction practices and suggest
changes into standard practices;
5. To make recommendations for detailed study of a specific aspect/effect
which need further examination and scrutiny.

a
This report provides systematic documention of the seismicity of the region, the
seismic performance of the constructed facilities, the geographical distribution of
intensity of the shaking and a few case studies of structural performance. In the
following section, a summary of observations and recommendations to mitigate
seismic hazard are provided.

SUMMARY OF OBSERVATIONS&RECOMMENDATIONS

Following observations and recommendations can be made as a result of inves-
tigating the effects of the Jabalpur earthquake. The lessons learned from the
Jabalpur earthquake would help the earthquake engineering profession to focus
on areas which need more study as well as to take measures in order to mitigate
damage in future earthquakes.

Jabalpur Earthquake f May 22, 1997