Download pdf - OCHA-Phil-Mayon Volcano Hazard Profile 07022018...The boundaries, names shown and the designations used on this map do not imply official endorsement or acceptance by the United Nations

The boundaries, names shown and the designations used on this map do not imply official endorsement or acceptance by the United Nations.Creation date: 8 February 2018 Sources: Published hazard maps from PHIVOLCS (http://www.phivolcs.dost.gov.ph) and shapefiles from MGB; DepEd (Schools as ECs); PSA (Admin. boundaries and population)

Since 14 January 2018, Mayon Volcano continues to show high levels of unrest resulting from repeated hazardous eruptions that have displaced tens of thousands of residents from the extended danger zone. The alert level remains at ‘4’ on the government‘s 5-point scale due to

the impending danger of the volcanic activities, prohibiting authorities from allowing the return of the evacuees.

To assist the local government’s strategic decision making, the Philippine Institute of Volcanology and Seismology (PHIVOLCS) published updated hazard maps to help understand the risks related to the eruption. Monsoon rains can exacerbate the danger to residents by causing flooding, landslides and lahar (mudflows), adding to the concerns of communities surrounding the volcano. The hazard maps of Mayon Volcano from PHIVOLCS together with the flood and landslide hazard maps from The Mines and Geosciences Bureau (MGB) can help the affected municipalities mitigate and minimize loss of lives and properties associated with this event.

Coverage

Province of Albay

Around MayonVolcano

Number ofMunicipalities

Number ofBarangays

Population2015 Census

18 720 1.31M

859.4K4179

* Number of probable affected and population of concern were derived by intersecting the hazard shapes fromgovernment sources into the administrative boundaries around Mayon Volcano and PSA 2015 population census.

Philippines: Mayon Volcano Hazard Profile (as of 8 February 2018)

LAHAR HAZARD (Source: PHIVOLCS)

PYROCLASTIC FLOW HAZARD (Source: PHIVOLCS) FLOOD HAZARD (Source: MGB) LANDSLIDE HAZARD (Source: MGB)

ASH FALL HAZARD (Source: PHIVOLCS) LAVA FLOW HAZARD (Source: PHIVOLCS)

6 km perm

anent danger zone7 km

extended danger zone

MALINAO

OAS

CITY OF TABACO

GUINOBATAN

CAMALIG

MALILIPOTCITY OFLIGAO BACACAY

SANTODOMINGO

DARAGA

LEGAZPICITY

LagonoyGulf

AlbayGulf

8 km danger zone

9 km danger zone

10 km danger zone

Highly prone areas

Number of probable affected*Municipalities Barangays

Population*of concern

Moderately prone areas

Least prone areas

101010

166196219

420.5K469.9K516.7K

Heavy ash fallout

Moderate ash fallout

Municipalities Barangays

10

12

104

162

243.5K

372.8KAreas proneto lava flow


9 30 72.1K

Areas proneto pyroclastic flow


9 40 96.1K


High to very high

Moderate

Low

907

3490

83

898.8K0

196.0K


High to very high

Moderate

Low

998

335273160

768.2K564.4K365.4K

Number of probable affected Populationof concern





LEGEND:

Mayon volcano

Municipal/City boundary

Hazard susceptibilityDesignated evacuation centresBuilt-up areas

Major road

ALBAY