Visual Damage Interpretation of Buildings
in Bam City Using QuickBird Images
Following the 2003 Bam, Iran, Earthquake
Fumio Yamazaki,
a…
M.EERI, Yoshihisa Yano,
b…
and Masashi Matsuoka,
c…
M.EERI
A strong earthquake struck the city of Bam in southeast Iran on 26
December 2003. The earthquake brought massive destruction to the city and its
surrounding rural areas. QuickBird, a high-resolution satellite, captured a clear
image of Bam on 03 January 2004, eight days after the event. The city was also
observed by QuickBird on 30 September 2003, about three months before the
event. In this paper, using the pre-event image, the location of individual
buildings was registered on GIS and the city blocks surrounded by major roads
were assigned. Then, the visual damage interpretation based on the European
Macroseismic Scale EMS-98 was carried out building by building,
comparing the pre-event and post-event images. The result of the damage
inspection was compared with field survey data, and the accuracy and
usefulness of the high-resolution satellite images in damage detection was
demonstrated. DOI: 10.1193/1.2101807
INTRODUCTION
It is quite important for emergency management and recovery works to capture dam-
age distribution immediately after the occurrence of natural disasters, e.g., earthquakes
or floods. In order to examine the applicability of remote sensing technologies to emer-
gency management after earthquakes, the present authors performed visual damage de-
tection using aerial video images and aerial photographs for the 1995 Kobe earthquake
Hasegawa et al. 2000. These kinds of aerial images can identify the damage status of
individual buildings, but they cannot cover a wide area with one acquisition time. On the
other hand, satellite images have the advantage of being capable of observing a large
area at one time. However, the spatial resolution of conventional satellite images e.g.,
Landsat, SPOT, ERS/SAR is from 20m to 30m. Hence, it is difficult to identify the
damage of individual buildings and bridges from these images.
Ikonos, the first commercial high-resolution satellite with maximum spatial resolu-
tion of 1.0 m, launched successfully on 25 September 1999. It captured a clear image of
a
Professor, Department of Urban Environment Systems, Faculty of Engineering, Chiba University, 1-33Yayoi-
cho, Inage-ku, Chiba 263-8522, Japan
b
Graduate Student, Department of Urban Environment Systems, Faculty of Engineering, Chiba University,
1-33Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
c
Team Leader, Earthquake Disaster Mitigation Research Center, NIED, 1-5-2 Kaigandori,Wakinohama, Chuo-
ku, Kobe 651-0073, Japan
S329
Earthquake Spectra, Volume 21, No. S1, pages S329–S336, December 2005; © 2005, Earthquake Engineering Research Institute