Dr Rm Info Sheet

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Disaster Risk Management

Information Sheet

Region XII


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What is Disaster Risk Management?

Disaster risk management (DRM)is a systematic process of using administrative

decisions, organization, operational skills and capacities to implement policies, strategiesand coping capacities of the society or individuals to lessen the impacts of natural and

related environment and technological hazards.

DRM comprises all forms of activities, including structural and non-structural measures

to avoid (prevention) or to limit (mitigation and preparedness) adverse effects of

hazards.

Understanding Disaster Risk

azard is a potentially damaging physical event, phenomenon or human activity,!hich may cause the loss of life or in"ury, property damage, social and economic

disruption or environmental degradation. #t can include latent conditions that mayrepresent future threats and can have different origins$ natural (geological,

hydrometeorological and %iological) and&or induced %y human processes

(environmental degradation and technological hazards).

'ulnera%ility is a set of conditions and processes resulting from physical, social,economical and environmental factors, !hich increase the suscepti%ility of acommunity to the impact of hazards.

Riskis the pro%a%ility of harmful conseuences, or epected loss (of lives, people,in"ured, livelihoods, economic activity disrupted or environment damaged) resulting

from interactions %et!een natural or human induced HAZARDS and

VULNERABLE&capa%le conditions.

*arthuake, flooding, landslide, volcanic eruption and tsunami are geological

processes in the formation of earth. +hey %ecome HAZARDS!hen lives, properties,gro!th of economy are at RISK.

+he RISK is HIGH !hen human activity, property, and gro!th of economy is

incompati%le !ith the RD or ignores its presence in a given time and place.

Disasteris a serious disruption of the functioning of a community or a societycausing !idespread human, material, economic or environmental losses !hich eceed

the a%ility of the affected community&society to cope using its o!n resources.

/reparedness and uick response are the most critical elements in natural disaster andmanagement.

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Hazard Classification

0. Natural Hazards are natural processes or phenomena occurring in the %iosphere thatmay constitute a damaging event. #t can %e classified %y origin1 geological,

hydrometeorological and %iological.

Geographical - are natural earth processes or phenomena in the %iosphere, !hich

include geological, neotectonic, geophysical, geomorphological, geotechnical and

hydrogeological nature. Examples: earthquakes, tsunamis; volcanic activity andemissions; Mass movements i.e. landslides, rockslides, rockfall, liquefaction,

submarine slides; subsidence, surface collapse, geological fault activity.

Hydrometeorological hazardsare natural processes or phenomena of atmospheric,hydrological or oceanographic nature. Examples: floods, debris and mud flows;

tropical cyclone, storm surge, thunderhailstorms, rain and wind storms, bli!!ards

and other severe storms; drought, desertification, wild land fires, heat waves, sand or

dust storms; permafrost, snow avalanches

Biological hazardsare processes of organic or those conveyed %y %iological vectors,including eposure to pathogenic micro-organism, toins and %ioactive su%stances.

Examples: outbreak of epidemics diseases, plant or animal contagion and extensive

infestations.

2. e!hnolo"i!al Hazards (nthropogenic azards) 3 are danger originating from

technological or industrial accidents, dangerous procedures, infrastructure failures or

certain human activities, !hich may cause the loss of life or in"ury, property damage,social and economic disruption or environmental degradation

Examples "ndustrial pollution, nuclear activities and radioactivitiy

#oxic wastes, dam failures, transport, industrial or technological accidents

$explosions, fires, spills)

4. En#ironmental De"radation processes induced %y human %ehavior and activities

(sometimes com%ined !ith natural hazards) that damage the natural resource %ase or

adversely alter natural processes or ecosystems.

Examples %and degradation, deforestation, desertification, wildland fires, loss of

biodiversity

%and, water and air pollution, climate change, sea level rise, o!one depletion

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Geological Hazards ffecting Region !""

#n Region 5##, occurrences of flood, landslide, earthuake, tsunami and volcaniceruption, ground failure&land su%sidence and erosion have %een recorded. +he areas prone

to these hazards are as identified %elo!.

$% &lood

6looding is mainly due to the overflo!ing of !ater from rivers and other %odies of !ater,including the accumulation of rain!ater along drainage particularly during intense

precipitation.

a'le $%$

&lood (rone Areas in Re"ion )II

&rovince'ity Munipality(pecific )reas

7orth 8ota%ato #$l$nan% M&lang% Matalam% 'a(acan% )ikit% leosan%Midsayap%lamada% *i($ngan% )igca+ayan

ultan 9udarat "s$lanreas that are located near the river%anks of llah river and :anga

River in :arangay 9olam%og, :am%ad, Dansuli, 9ala!ag ###, #mpao,Mapantig, 9enram and ampao.

itio 9amanga of :arangay ;aguilayan,speranza% *am(ayong% *e(ak

outh 8ota%ato -anto .ino and .orala

;o! lying areas along the valleys#$pi

7ational igh!ay along :arangay 9a%lon, :arangay 8e%uano

*$tayan

:arangays of ;utayan /roper, Mamali, Maindang, and :ayasong#antangan

long the 7ational igh!ay %et!een 7e! #loilo and :ukay /ait,

:arangay 8a%ulingBanga% -$rallah% #&(oli

arangani la(el

:arangay Mari%ulan and in some areas of :arangay /o%lacion.Glan% Malapatan% 'iam(a% Mait$m

9oronadal 8ity :arangay of /o%lacion, aravia and 8arpenter ill

9idapa!an 8ity itios of :arangay #lomavis and


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*a+ $%$

&lood Hazard *a+ of Re"ion )II

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,% Landslide

;andslide is characterized %y any mass movement that is percepti%le and involvesrelatively dry masses of earth de%ris. #t is also defined as the do!n slope movement of

soil or rock materials under the influence of gravity !hen shear stress eceeds the shear

strength.

Contri($ting /actors ,ffecting H"GH H0RD

Rainfall #ntense ranging 0>> to 2>> mm&day

Slo+e Rolling to very steep terrain !ith ?0@A slope

Soil-Ro!. /+es 8lay oil and ighly %recciated %ed rock

Land Use 0o#er /oor vegetation&:arely oil

Distan!e from "ulle/ head /roimately 2> meters

Distan!e from roads /roimately 0> meters

Distan!e from ma1or faults /roimately 0>> meters

a'le ,%$

Landslide (rone Areas

&rovince'ity Munipality(pecific )reas

7orth 8ota%ato Municpalities of lamada and Makilala

#sulan, ultan 9udarat =>A to @B A slopes upstream of 8a%ilanan, 9akal River and:uluan 8reek. lso, the %arangays on the eastern part of

#sulan.

anto 7iCo and 7orala,

and ;ake e%u, outh

8ota%ato

long the mountain slopes of east 7orala.

Malungon, arangani 7agpan :arangay 8enter and the road leading to lkikan.

la%el, arangani itio iman of :arangay /araiso

9oronadal 8ity t the ridge of Roas Mountain Range at itio cu%,

:arangay an #sidro.

9idapa!an 8ity teep slopes upstream of Mar%el river and Matingao 8reek.


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*a+ ,%$

Landslide Sus!e+ti'ilit/ *a+ of Re"ion )II

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2% Earth3ua.e

*arthuake is a fee%le shaking to violent trem%ling of the ground produced %y the suddendisplacement of rocks or rocks materials %elo! the surface of the earth. #n Mindanao, the

earthuake generators are along the /hilippine +rench, 8ota%ato +rench, Davao +rench,

7egros +rench, /hilippine 6ault and the indangan-8ota%ato 6ault. ne of thedestructive earthuakes that occurred in Region 5## !as on ugust 0=, 0E=F. #ts

epicenter !as in the Moro > kilometers south of 8ota%ato

8ity, and !ith #ntensity '##. +he March F, 2>>2 earthuake !ith a magnitude of F.@ onthe Richter scale caused the %reaching of ;ake MaughanGs natural dam and induced

flooding, river%ank scouring, erosion and sedimentation along the llah River stretch.

*a+ 2%$

*a+ Sho4in" Earth3ua.e Generators in *indanao Island

*a+ 2%,

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*a+ Sho4in" the Distri'ution of A!ti#e &aults in Re"ion )II

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5% SUNA*I

+sunami are giant sea !aves generated %y under the sea earthuakes and volcaniceruptions. ll coastal areas in the region are suscepti%le to tsunami.

*a+ 5%$

*a+ Sho4in" sunami (rone Areas and sunami 6!!urren!es

10

KIDAPAWAN CITY

KORONADAL CITY

GEN. SANTOS CITY

TACURONG CITY

MAGUINDANAO(ARMM

L!"# M!$%&!'

CELE(ESSEA

Saran

gani

Bay

I))!'!

(!*

COTAATO CITY

SARANGANI

SOUTH COTABATO

SULTAN KUDARAT

COTABATO

L!"# S#+$

ARMM

REGION ,

REGION I,

ALAEL

ISULANLEAK

KALAMANSIG

PALIMANG

MAITUM

KIAMA

MAASIM

MALAPATAN

GLAN

LEGEND:

- Tsunami Prone Areas

- Year of Tsunami Occurrence

18281828

18231823

19171917

19761976

19181918

1976

KIDAPAWAN CITY

KORONADAL CITY

GEN. SANTOS CITY

TACURONG CITY

MAGUINDANAO(ARMM

L!"# M!$%&!'

CELE(ESSEA

Saran

gani

Bay

I))!'!

(!*

COTAATO CITY

SARANGANI

SOUTH COTABATO

SULTAN KUDARAT

COTABATO

L!"# S#+$

ARMM

REGION ,

REGION I,

ALAEL

ISULANLEAK

KALAMANSIG

PALIMANG

MAITUM

KIAMA

MAASIM

MALAPATAN

GLAN

LEGEND:

- Tsunami Prone Areas

- Year of Tsunami Occurrence

18281828

18231823

19171917

19761976

19181918

1976


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7% V6L0ANI0 HAZARD

'olcanic azard is associated !ith volcanoes include ash falls, volcanic mudflo!s

(lahars) and flooding.

a'le 7%$

A!ti#e Vol!anoes in Re"ion )II

.ame of

1olcano

.$m(er of

,r$ptions

Date of

*ast

,r$ption

#ype of 1olcanic

cti2ity*ocation

Mt. Ragang E 0E0F*plosive !ith

lava flo!

lamada, 7orth

8ota%ato

Mt.

Matutum7o record 0E00 Dormant

+ampakan, +upi and

/olomolok, all inouth 8ota%ato.

Mt. /arker 7o record 0FH0*plosive !ith

pyroclastic flo!

+i%oli, outh

8ota%ato

a'le 7%,

Areas Vulnera'le to Vol!ani! Hazards

/rovince&8ity /otential 'olcanic azard

7orth 8ota%atosh fall in case of violent eruptions of active volcanoes. Mt po

is a dormant strato volcano.

8ota%ato 8ity;o! risk area to effects of direct volcanic eruptions. Risk toflooding from %reaching ;ake Maughan if Mt. /arker erupts.

;utayan, ultan9udarat

sh fall and lahar flooding

outh 8ota%ato

ll areas !ithin the province are suscepti%le to ash falls !hile

lo! lying areas along valleys are prone to volcanic mudflo!sand flooding.


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*a+ 7%$

*a+ Sho4in" 8uaternar/ Vol!ani! in *indanao

9% GR6UND &AILURE-LAND SUBSIDEN0E


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:% ER6SI6N

*rosion is displacement of solids (soil, mud, rock and other particles) %y the agents ofocean currents, !ind, !ater, or ice %y do!n!ard or do!n-slope movement in response to

gravity or %y living organisms (in the case of %ioerosion).

*a+ :%$

Erosion *a+

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reas 'ulnera%le to *rosion

&rovince'ity Municipality

7orth 8ota%ato lamada, ;i%ungan, :anisilan, 8armen, ntipas, Magpet,

/resident Roas, rakan, +ulunan, Makilalaultan 9udarat 8olom%io, ;utayan, *speranza, ;e%ak, 9alamansig, Iest

#sulan, 7inoy uino, :agum%ayan

outh 8ota%ato +ampakan, +antangan, :anga, +upi, /olomolok, ;ake e%u,

+G%oli

arangani Maasim, Malungon, la%el, Malapatan,

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