1. GEOHAZARD MAPPING AND
ASSESSMENT PROGRAM
Presented by:
Ma. Gerarda Asuncion D. Merilo
Sr. EMS, Climate Change Office
Environmental Management Bureau
2. WHAT IS GEOHAZARD MAPPING AND
ASSESSMENT PROGRAM?
The Geohazard Mapping and Assessment Program is a
on-going priority program of the DENR, which is being
implemented by the Mines and Geosciences Bureau (MGB).
Main objective:
To identify areas in the country which are
susceptible or vulnerable to various geologic hazards,
or geohazards.
The program also seeks to provide information to various
stakeholders in order to lessen or mitigate the impact of these
events.
3. WHAT ARETHE COMPONENTS OFTHE
PROGRAM?
Rapid assessment survey to generate geohazard maps that will
indicate which areas are prone to natural dangers like landslides,
flooding and ground subsidence;
Printing and reproduction of maps, manuals and information
materials for public dissemination; and
Conduct of seminars and workshops for local government
officials and public school teachers to increase their awareness
and preparedness on various natural hazards, as well as teach
them on the proper use of the geohazard maps
4. WHAT ARE GEOHAZARDS?
Geohazards are naturally occurring geological
phenomena that pose danger to people’s lives,
properties, infrastructure and communities.These
include landslides, flooding and land subsidence. However,
in some cases, geohazards can also be induced by human
activities.
Geohazards cannot be totally prevented but their impact
on people and the environment may be lessened or
mitigated.
5. WHAT HAVE BEEN ACCOMPLISHED SO
FAR BYTHE PROGRAM?
Identified theTop 10 provinces highly susceptible to landslides
Identified theTop 10 provinces highly susceptible to flooding
Completed the geohazard assessment and mapping of all the
1,634 cities and municipalities, with a scale of 1:50,000
Distributed a total of 75,000 map sheets to all local government
units down to the barangay level, with corresponding training
and capability-building to interpret the maps
Started the preparation of more detailed geohazard maps in
2011, with scale of 1:10,000, initially targeting 218 municipalities
6. TOP 10 PROVINCES HIGHLY SUSCEPTIBLE
TO LANDSLIDES
1. Marinduque
2. Rizal
3. Cebu
4. La Union
5. Southern Leyte
6. Benguet
7. NuevaVizcaya
8. Batangas
9. Mt. Province
10. Romblon
7. TOP 10 PROVINCES HIGHLY SUSCEPTIBLE
TO FLOODING
1. Pampanga
2. Nueva Ecija
3. Pangasinan
4.Tarlac
5. Maguindanao
6. Bulacan
7. Metro Manila
8. North Cotabato
9. Oriental Mindoro
10. Ilocos Norte
11. GOVERNING RULES AND POLICIES
DAO 2000-28, March 14, 2000
Implementing Guidelines on Engineering Geological and Geohazard Assessment as Additional
Requirement (EGGAR) for ECC Applications covering Subdivision, Housing and other Land
Development and Infrastructure Projects
Memorandum Circular (MC) 2000-33
Guidelines and Checklist in the conduct of an EGGA and preparation of corresponding report
(EGGAR)
DENR Memorandum Circular October 2000
Guideline on EGGA preparers
Presidential Executive Order (EO) 45 October 24, 2001
Mandate on all DENR agencies involved in the issuance of housing-related certifications, permits
and clearances, to observe periods and provide appropriate mechanisms to fast track the
approval and implementation of housing projects.
Memorandum Circular 26 November 2001
Implementation of EO 45
MGB MC 2002-43 18 February 2002
Guidelines relevant to EGGA concerns in the implementation of EO 45