3 
:or more than 
provide a basis for an economic review and reconstruction of the region affected 
country. In 
by the earthquakes, and for a total of more than 120,000 square kilometers in the 
using airborne 
central area of the country. 
up the Project 
In 1960 the southern portion of Chile suffered several severe earthquakes 
aents been com- 
which caused substantial damage in many of its major southern cities. The 
5 and methods, 
Organization of American States, employing emergency funds which had been supplied 
by its member nations, sent a mission to Chile to review the earthquake disaster 
i period of 40 
problems and to recommend a program for a planned rehabilitation and redevelopment 
iventional ground 
of the affected areas. 
it advances in 
The OAS Mission recognized the immediate need for the relief of the major 
it leaders, to 
cities damaged by the earthquakes and tsunamis that followed. They recommended 
ilists, and 
first the preparation of large scale topographic maps and geological investiga 
Lde them with 
tions to provide the essential tools for planning the urgently needed reconstruc 
work requires 
tion of buildings, utilities and major public works. In addition, a broader 
it and supervise 
program was proposed for an inventory of natural resources to provide current data 
>urce inventory 
for the economic development of the entire region affected by the earthquakes. 
Lie was 
The first phase of the program provided for the obtaining of aerial photo 
graphs at a scale of 1:50,000 of the entire region; photographs at a scale of 
American States 
1:10,000 for the major damaged cities to be used in the preparation of 1:2,000 
Bank. The work 
topographic maps; and the commencement of a program to provide mosaics at a scale 
ig companies, 
of 1:20,000 for the region. 
3 of Los Angeles; 
Later the Government of Chile initiated the second phase of the program. 
irvey Corporation 
This consisted of a property inventory program to define and delineate on the 
:s and 
1:20,000 mosaics the boundaries and ownership of more than 170,000 properties 
the Government 
within the region. In addition, a review was made to determine, classify, and 
construction and 
show on an overlay to the mosaics the present land use of all the area included 
reform and taxa- 
in the Project. Aerial photographs at a scale of 1:20,000 were obtained in the 
:ransportation, 
basic agricultural and populated areas in the region. 
accomplishing 
The aerial photographs were used to conduct detailed photo-interpretation 
resources to 
studies for the land use work. They also served as a medium for plotting property 
these objectives the project provided a broad inventory of natural resources to