Kathmandu Valley Earthquake
Risk Management Project (KVERMP)
PROJECT COMPONENTS
Background
Kathmandu Valley's Earthquake
Risk
Nepal has a long history of
destructive earthquakes. In this century alone over 11,000 people
have lost their lives in four major earthquakes. A 1934 earthquake
produced an intensity of IX-X on the Modified Mercali Intensity (MMI)
scale in Kathmandu Valley, and destroyed 20% and damaged 40% of the
valley's building stock. In Kathmandu itself, one quarter of all homes
were destroyed. Many of the temples in Bhaktapur were destroyed as
well.
This earthquake is not an isolated event. Three earthquakes produced
intensities of IX-X in Kathmandu Valley in the 19th Century, in
1810, 1833 and 1866. The seismic record of the region suggests a
return period of about 25 years, indicating that a devastating earthquake
is inevitable in the long run and likely in the near future.
A large earthquake near the Kathmandu Valley would cause significantly
greater human loss, physical damage, and economic crisis than caused
by the past earthquakes. With the Valley's burgeoning population
of almost 1 1/2 million people, uncontrolled development, and a
construction practice that has actually degraded over this century,
the Valley becomes increasingly vulnerable to earthquakes with each
passing year. Recent experience of the consequences of large earthquakes
in developing countries has led to the rule of thumb that shaking
of intensity IX on the MMI scale will result in 5% of the exposed
population to die and 20% to have injuries requiring hospitalization;
for Kathmandu Valley today, that means that a repeat of the 1934
earthquake would result in 75,000 deaths and 300,000 serious injuries.
Even if all critical facilities were to remain operational, this
would be an unprecedented disaster.
Roots of this Earthquake
Risk
Despite this threat, there
is no institution within Kathmandu Valley to assess earthquake hazards
or promote an earthquake risk management program. A weak economy,
rapid population growth, and lack of technical information about
the earthquake risk significantly contributes to the seismic vulnerability
and lack of earthquake preparedness in Kathmandu Valley.
Poverty and the Economy
Nepal is among the poorest
and least developed countries in the world. it has a gross domestic
product (GDP) of US$ 2.9 billion (60% of which is derived from agriculture),
or a per capita GDP of US$ 145. Approximately, 14% of the GDP (US$
400 million) derives from foreign development aid from international
and national overseas development agencies. A weak economy and abundant
poverty result in a lack of government funds to support earthquake
hazard mitigation programs, inexpensive, poorly constructed dwellings
that often fail during earthquakes, and a tendency to the general
population to ignore the earthquake hazard in order to concentrate
on fulfilling more immediate needs.
Population Growth
Nepal's rapid population growth
exacerbates its earthquake vulnerability. With an annual population
growth rate of 2.4%, the population of Nepal will double by the year
2019. T'he consequences on Kathmandu Valley are even more sever: rural
exodus drives urban growth at an even faster rate, resulting in an
urban growth rate of 6.5% and one of the highest urban densities in
the world. Such growth hampers earthquake safety in three primary
ways:
- It strains the economy, diminishing available funding for education,
research, public policy and regulation programs which could reduce
the seismic hazard.
- It necessitates rapid rather than sound construction, resulting
in unplanned, unregulated buildings and development designed without
building codes.
- High population densities increase the raw number of people
at risk and overwhelm emergency services.
Lack of Awareness of Earthquake
Risk
While the technical information
about the earthquake hazard in Kathmandu Valley is incomplete and
scattered among several governmental agencies, a more important contributor
to the region's lack of earthquake preparedness is that the technical
information that is available has not been synthesized, has not been
applied to the infrastructure of modem day Kathmandu Valley, and has
not been presented in a form that the public and government officials
can digest it.
Addressing the Earthquake
Threat
Earthquake risk is one of
many problems facing Kathmandu Valley and Nepal, but, given the inevitability
and disastrous consequences of a future strong earthquake, seismic
safety must be incorporated into its development plan.
There are three fundamental elements necessary to reduce the earthquake
threat in Kathmandu Valley:
- An estimation, using all information currently available, of
the probable consequences of a repeat of the 1934 earthquake on
modern day Kathmandu Valley. This estimation should be expressed
in laymen's terms, so as to be readily understood by the public,
business leaders and government officials. This will provide a
factual basis for a sound public policy concerning earthquake
safety.
- A comprehensive set of earthquake risk management recommendations,
based on the expected consequences of a large earthquake; developed
by local and international specialists in government, city planning,
urban infrastructure, and emergency services; and addressing the
most significant aspects of the Valley's risk.
- A properly constituted and equipped organization in which government,
business and academic leaders collaborate to foster earthquake
risk management and incorporate earthquake disaster mitigation
strategies into Kathmandu Valley urban development process. This
organization would be vital also in facilitating, monitoring and
assisting in the implementation of risk management programs.
A demonstration project in which the earthquake risk of some
critical, vulnerable element of society is reduced. Such a project
should not only accomplish something tangible (to leave something
more than reports and organizations), but also contribute to
the training of local people.
The approach used in this project addresses these needs.
Objectives
The
Kathmandu Valley Earthquake Risk Management Project is designed
to meet four objectives:
- Evaluate
earthquake, risk and prescribe action plan for managing that risk;
- Reduce
the public school's earthquake vulnerability;
- Raise
awareness of the public, of Nepalese government officials, the
international community resident in KV, and of influential organizations
abroad of KV's earthquake risk; and
- Build
local institutions that can sustain the work launched in this
project.

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