The Dhaka Profile and Earthquake
Risk Atlas is a compilation of physical
& socio-economic profiles, built
environment, hazards, vulnerability &
risks information, and maps of Dhaka.
It was based on the initial results
and findings of the Bangladesh Urban
Earthquake Resilience Project (BUERP).
The Atlas will help in providing essential scientific data and
information to improve capacity for earthquake resilience
of Bangladesh.
1
2
3
4
Dhaka Profile
Background
Physical and Socio-economic
Profile Components
• Political
• Physical
• Socio-cultural
• Built Environment
www.emi-megacities.org
A Member of the U.N. Global Platform for
Disaster Risk Reduction
Bangladesh Urban Earthquake
Resilience Project
February 2014
The Dhaka Profile and
The Risk Atlas is supported
Earthquake Risk Atlas is one
by a Geographic Information
of the tools that will assist to
System (GIS) which will
raise awareness and support
enable users to generate their
decision making and policies
own maps for their disaster
aimed at mitigating the impact
risk resilient activities. By
of earthquake hazards through
having all data into a single
structural and non-structural
spatial database, stakeholders
vulnerability reduction
can work more efficiently
measures.
in planning and executing
Disaster Risk Reduction (DRR)
Earthquake Hazards
activities.
Bangladesh Tectonics
Historical Seismic Activity
Modeled Sources
Soil Classification
Peak Ground Accelerations
Liquefaction
Earthquake Vulnerability
and Risk Analysis
Vulnerability Definition
Physical Vulnerability
• Building Exposure
and Inventory
• Buildings Vulnerability
• Building Losses
• Lifelines
• Essential Facilities
Social Vulnerability
• Casualties
• Population Affected
• Economic and
Property Losses
Risk Definition
Physical Risk Indicators
Socio-Economic Impact
Factors
Urban Disaster Risk Index
Physical Risk
Socio-Economic Impact Risk
Combined Risk
Cover photo © Nasim Borno
For more information on where to get a copy of the
Dhaka Profile and Earthquake Risk Atlas, contact:
Disaster Risk Management and Climate Change Unit
South Asia Sustainable Development Department
The World Bank Office Dhaka
Plot E 32, Sher-e-bangla Nagar, Agargaon
Phone: 880-2-8159001-28
Earthquakes and Megacities Initiative
Puno Building, 47 Kalayaan Avenue, Diliman,
Quezon City, Metro Manila, Philippines 1101
T/F: +632 9279643; T: +632 4334074
www.emi-megacities.org
EMI © 2013
Dhaka Profile
and Earthquake
Risk Atlas
What’s inside the Dhaka Profile and
Earthquake Risk Atlas
It is intended to provide a scientific and systematized presentation
91
these technical information into a single, straight forward, easy-to-
er
Tu r a g Riv
professionals, and specialists in the field of Hazard Vulnerability Risk
Assessment (HVRA) as well as practitioners and researchers in
Disaster Risk Reduction and Management (DRRM) and its related
fields can find relevant information. Stakeholders such as government
officials, community leaders and the private sector involved in and has
interests in urban DRRM can use information in the Risk Atlas for
Bangladesh is exposed to significant
seismic risk due to its proximity to
the seismically active tectonic plates.
A Magnitude 7.5 event on the Madhupur
fault and a Magnitude 8 event on the
Plate Boundary 2 fault have the greatest
impact on the city of Dhaka, Bangladesh’s
capital.
Banani Lake
W
Gulshan Lake
Intensity VIII
• Bengal Earthquake, 1885. Magnitude 7
• Great Indian Earthquake,h1897. K
Magnituderi8.1
The readers of this document will be informed of the earthquake
hazard, identify physical and socio-economic vulnerabilities and
be knowledgeable of the risks presented in the event of an
earthquake in Dhaka.
»»
The Risk Atlas would be able to meet the need for reliable
information in the formulation and development of
Intensity VII
e
• Srimangal B
Earthquake,
1918. Magnitude 7.6
ng
rig a
Bu
Intensity VI (intensity where structural
damage begins to occur)
• 1923, Magnitude 7.1
• 1934, Magnitude 8.1
• 1935, Magnitude 6.0
• 1943, Magnitude 7.2
• 2001, Magnitude 5.1
Dhanmodi Lake
comprehensive risk reduction and management strategies.
»»
g un
ba
»»
This document would be a compilation of information that could
serve as the scientific foundation for policy making and planning
a Ri v
for growth and development.
er
The data used in the brochure was shared to the Bangladesh Urban
Earthquake Resilience Project (BUERP) courtesy of RAJUK in 2013
N
S
al
How will this document benefit the reader?
Severe
The Madhupur fault event is to the north
of the city. Ground motions generally
decrease from north to south and are
amplified in areas of soft soil. The Plate
Boundary 2 fault is to the east of the city
and ground motions decrease going east to
west.
What earthquakes have impacted
Dhaka?
educational, communication, and planning purposes.
0.471
Ground motion is the
measure of the amplitude
and period of seismic
waves once it arrives at
the earth’s surface.* Higher
ground motion may bring
higher damage or impact
Building
Structures
provide the scientific foundation in improving capacity for earthquake
The Risk Atlas is for everyone and can be used by anyone. Experts,
Very Strong
327,503
wards
understand presentation. These information could be utilized to
Who should read this document?
0.216
Population
Dhaka
them through maps, tables, and charts. The Risk Atlas translates
resilience of Bangladesh.
million
sq km
Resilience Project (BUERP) by compiling physical, demographic, and
Peak Ground Acceleration (g)
with Soil Amplification
6.54
136.37
of the results and key findings of the Bangladesh Urban Earthquake
socio-economic data with risk information and analyses, then, showing
(Disaster Risk Management Online Program, Global Faciltiy for Disaster Reduction and Recovery, 2011)
*
What is the Purpose of the
Dhaka Profile and Earthquake Risk Atlas?
¨
Fire Station
K Hospital
ca Police Station
School
Ground motion based on postulated
magnitude 7.5 earthquake on the
Madhupur Fault
Buriganga River
Latitude 23° 42 ′0″ N
Longitude 90° 22′ 30″ E
E
WHAT CAN BE DONE?
Awareness Raising
Knowledge of hazards and risks by the
general public will raise awareness and
build social responsibility and social
resilience.
Competency Building
!
Training of architects, engineers,
planners, and construction
professionals will improve standards for
earthquake-resilient construction, thus
protecting people and property.
www.emi-megacities.org
A Member of the U.N. Global Platform for
Disaster Risk Reduction
Expected losses from a postulated
magnitude 7.5 earthquake on the Madhupur Fault
February 2014
US$5.7 billion
estimated
losses
over
200,000
injured &
50,000
fatalities
Improving Response
Having competent Emergency
Management plans, drills, exercises and
trainings for first responders.
Implementation of
Building Codes
Implementation and enforcement of
the building codes will ensure that
buildings will protect their occupants
and reduce damages and losses.
Risk-Sensitive
Land Use Plans
Understanding of hazards and risks
can inform land use plans and zoning
ordinances to build away from
hazardous areas and reduce exposure
to earthquakes.
Bangladesh Urban Earthquake
Resilience Project
180,000
estimated
damaged
buildings
For more information on where to get a copy of the
Dhaka Profile and Earthquake Risk Atlas, contact:
Disaster Risk Management and Climate Change Unit
South Asia Sustainable Development Department
The World Bank Office Dhaka
Plot E 32, Sher-e-bangla Nagar, Agargaon
Phone: 880-2-8159001-28
Earthquakes and Megacities Initiative
Puno Building, 47 Kalayaan Avenue, Diliman,
Quezon City, Metro Manila, Philippines 1101
T/F: +632 9279643; T: +632 4334074
www.emi-megacities.org
EMI © 2013
EARTHQUAKE
RISK IN
DHAKA
How a magnitude 7.5 earthquake will affect
the world’s densest megacity
there are
327,503*
Building Structures
in Dhaka
Bangladesh
Ground motion is the
measure of the amplitude
and period of seismic
waves once it arrives at
the earth’s surface.** Higher
ground motion may bring
higher damage or impact
Commercial
19, 225 (5.86%)
Institutional
6, 308 (1.85%)
Topography of the area surrounding the Ganges-Brahmaputra Delta (banglapire.org)
Bangladesh is exposed to significant
seismic risk due to its proximity
to the seismically active tectonic
plates. A Magnitude 7.5 event on the
Madhupur fault and a Magnitude 8
event on the Plate Boundary 2 fault
have the greatest impact on the city
of Dhaka, Bangladesh’s capital.
The Madhupur fault event is to the
north of the city. Ground motions
generally decrease from north to
south and are amplified in areas
of soft soil. The Plate Boundary 2
fault is to the east of the city and
ground motions decrease going east
to west.
Industrial
9, 651 (2.95%)
Intensity VII
• Srimangal Earthquake, 1918. Magnitude 7.6
136.37
sq km
Residential
266, 486 (81.44%)
What earthquakes have impacted Dhaka?
Intensity VIII
• Bengal Earthquake, 1885. Magnitude 7
• Great Indian Earthquake, 1897. Magnitude 8.1
Dhaka
6.54
million
Intensity VI (intensity where
structural damage begins to
occur)
Population
91
Others
25, 833 (7.90%)
• 1923, Magnitude 7.1
• 1934, Magnitude 8.1
• 1935, Magnitude 6.0
• 1943, Magnitude 7.2
• 2001, Magnitude 5.1
wards
The Dhaka Profile and Earthquake Risk Atlas is a compilation of physical & socio-economic profiles, built environment, hazards,
vulnerability & risks information, and maps of Dhaka. It is one of the tools that will assist to raise awareness and support decision making
and policies aimed at mitigating the impact of earthquake hazards through structural and non-structural vulnerability reduction measures.
The Atlas will help in providing essential scientific data and information to improve capacity for earthquake resilience of Bangladesh.
For more information:
Chapter
3
Chapter
1
Dhaka Profile
Background
Physical and Socio-economic
Profile Components
•
Political
•
Physical
•
Socio-cultural
•
Built Environment
Earthquake Vulnerability and Risk Analysis
Vulnerability Definition
Physical Vulnerability
•
Building Exposure and
Inventory
•
Buildings Vulnerability
•
Building Losses
•
Lifelines
•
Essential Facilities
Social Vulnerability
•
Casualties
•
Population Affected
•
Economic and
Property Losses
Risk Definition
Physical Risk Indicators
Socio-Economic Impact Factors
Chapter
2
Bangladesh Tectonics
Historical Seismic Activity
Modeled Sources
Soil Classification
Peak Ground Accelerations
Liquefaction
Chapter
4
Earthquake Hazards
¨
Fire Station
K
Hospital
ca Police Station
School
Peak Ground Acceleration (g)
with Soil Amplification
0.216
Very Strong
Urban Disaster Risk Index
Physical Risk
Socio-Economic Impact Risk
Combined Risk
The data used in the brochure was shared
to the Bangladesh Urban Earthquake
Resilience Project (BUERP) courtesy of
RAJUK in 2013
Buriganga River
0.471
Severe
*based on RAJUK Dataset
Latitude 23° 42 ′0″ N
Longitude 90° 22′ 30″ E
W
N
E
S
(Disaster Risk Management Online Program, Global Faciltiy for Disaster Reduction and Recovery, 2011)
**