Philippines, Earthquake and local Tsunami

10:49 Feb 6 2012 Philippines

Region 7
Guihulngan City collapsed Barangay Hall
cracks Government and commercial buildings; roads and bridges
Mun. of Tayasan Damaged Matoog Bridge (allegedly impassable)
Mun. of Jimalalud damaged 2 residential houses
damaged Bridges and roads
Mun. of La Libertad Wiped out 5 cottages in Comendador Beach Resort were wiped out due to sudden rise of water
damaged bridges
collapsed 3-storey, Laturnas Bldg
damaged 20 residential houses
Cebu City Surface cracks RSB Building, Abellana National School, St. Vincent Gen. Hosp (old building)
Bohol Assessment on-going
Siquijor Assessment on-going
Dumaguete City Assessment on-going Commercial establishments
Mun. of Maribojoc Cracks amplified/ aggravated St. Vincent Parish Church
Mun. of Loay Cracks amplified/ aggravated Conception Elem. School

Source: GDACS

Red Earthquake and Tsunami Alert in Philippines

On 2/6/2012 3:49:18 AM UTC (about 12:02h local time) an earthquake of magnitude 6.8 occurred in the very highly populated region of Central Visayas in Philippines. The nearest populated places are: Ayungon (20km), Tayasan (12km), Cantaup (16km), Jimalalud (6km), La Libertad (7km), Apanangon (6km), Guihulngan (15km), Villegas (15km). The closest civilian airport is Bacolod (73km).

It is likely that a tsunami was generated. The maximum tsunami wave height near the coast of Da-og will be 0.19m. Please refer to the GDACS tsunami report for more details.

Potentially affected critical infrastructure:

Nuclear plants: [None]
Hydrodams: [None]
Airports: Dipolog (160km), Siquijor (97km), Camiguin (189km), Dumaguete (79km), Basay Cdcp (87km), Tagbilaran (85km), Ubay (142km), Maasin (177km), Mactan-cebu International (94km), Lahug (86km), Bacolod (73km), Iloilo (102km), Antique (159km), Philphos (169km), Ormoc (190km), Sicogon Island (158km), Roxas (181km)
Ports: Oroquieta (187km), Dipolog (162km), Inamucan Bay (171km), Pulauan (158km), Baliango (159km), Lazi (113km), Mambajao (190km), Dumaguete (82km), Tolong / Dumaguete (83km), Bayawan (85km), San Sebastian (64km), Bais / Dumaguete (50km), Tagbilaran (85km), Jagna (138km), Maribojoc (80km), Guindulman Bay (149km), Tubigan (87km), Sibonga (49km), Dumanjug (29km), Maasin (182km), Jetafe (107km), Pinamungajan (52km), Cebu (83km), Mandaue (90km), Sangi (63km), Sangi (64km), Carlos (57km), Pulupandan (69km), Carmen (111km), Bacolod (76km), Baybay (192km), Cartagena / Iloilo (99km), Tuburan (104km), San Jose De Buenavista (158km), Sogod Bay (121km), Pilar (175km), Silay (89km), Borbon (129km), Isabel (169km), Merida (178km), Cadiz (104km), Port Bello (183km), Ormoc (190km), Palompon (174km), Bogo (145km), Santa Fe (142km), Villaba (187km), Arevalo (197km), Port Capiz (182km)

Based on an automated impact model, this earthquake, which occurred in a region with medium vulnerability to natural disasters, has potentially a high humanitarian impact.

Whether international humanitarian aid is needed must be decided by an expert.
Event Date Univ. Time: Mon, 2/6/2012 03:49 UTC
European Time of the event: Mon, 2/6/2012 04:49 CET (Brussels, Paris, Rome)
East America Time of the event: Sun, 2/5/2012 22:49 EST (New York, Washington)
West America Time of the event: Sun, 2/5/2012 19:49 PST (San Francisco, Los Angeles)
East Asia Time of the event: Mon, 2/6/2012 12:49 JTI (Tokyo)

See the GDACS website for live news coverage (including OCHA Situation Reports), the full earthquake report and tsunami report .

For information on emergency response, please consult the GDACS Virtual OSOCC.

Tsunami Event

It is likely that a tsunami was generated. Based on precalculated scenarios, the maximum tsunami wave height near the coast of Da-og will be 0.19m.

A detailed tsunami wave height calculation is ongoing and should be available 20 minutes after this report was created. Results can be slightly different than the precalculated scenario. The outcome can be checked here: GDACS tsunami report .

tsunami travel time

Travel time map.

Other maps: maximum wave height, animation.

Earthquake Event

Source: World Data Centre for Seismology, Denver (NEIC) M
Magnitude: 6.8 M
Depth: 33 km
Location (Lat/Long): 10.031 | 123.175
Country: Philippines
Province: Central Visayas
Region: Negros - Cebu Region
UTC/GMT (Greenwich time): 2/6/2012 3:49:18 AM
Estimated local solar time: 2/6/2012 12:02:00 PM

Earthquake Impact Details
Potentially affected People
Population Data
Radius (km) Population Density (people/km?)
1 27 27
2 677 53
5 13322 169
10 55982 178
20 156497 124
50 1736322 221
100 8047426 256
200 15410950 122

The population in the area of this earthquake is 221 people/km?.

The earthquake occurred at 12h local time. At this time a day, more people are at work and therefore more vulnerable to collapsing office buildings. During traffic hours, people can be affected by collapsing bridges and other road infrastructure.
Resilience and Vulnerability

Resilience is the capacity of the population to cope with a hazard. Since much of investments in earthquake preparedness and available funds for quick response is related to household income, the GDP per capita can be used as a rough indicator of resilience.

Philippines has a GDP per capita of 1137 PPP$ (Parity Purchasing Power Dollar, about 1 Euro) and is therefore part of the low level income countries. Therefore, the earthquake happened in an area of low resilience.

Based on the combination of 9 indicators, ECHO attributes Philippines a medium vulnerability.
ECHO Intervention Priority Ranking for Philippines
Overall situation
Human Development hdi
Human Poverty hpi
Exposure to Major Disasters
Natural Disasters natdis
Conflicts conflicts
Humanitarian effects of population movement
Refugees and IDPs refugees
Health of children under five
Undernourishment food
Mortality rates under5
Other vulnerability factors
Access to health care phis
Prevalence of HIV, TBC and malaria htm
Gender-specific Human Development gdi
Gini Index gini
Source ECHO
Key: bad Bad - medium Medium - good Good - nodata No data
Secondary effects

Probability of secondary effects:

level Landslides: The maximum slope in the area of the earthquake is 44.23% and the maximum altitude is 2227 m. Since this is a medium slope, the risk of earthquake induced landslides is medium. Note, however, that the slope data is not reliable on a local scale, while landslides depend very much on local topography, soil and meteorological conditions.
level Nuclear power plants: There are no nuclear facilities nearby the epicenter.
level Hydrodams: There are no hydrodam facilities nearby the epicenter.
Additional Data



Credibility: UP DOWN 0

Additional Reports

Philippines, Landslide in Boljoon Town, Cebu

13:49 Oct 29, 2017

Boljoon Town, Cebu, 32.66 Kms

Philippines, Tornado in Negros Occidental

04:47 Aug 04, 2019

Negros Occidental, 49.62 Kms

Philippines, Tropical Storm "GENER" or SAOLA

10:18 Jul 30, 2012

Philippines: Region II, III, IV-A, IV-B, VI, X, CAR and NCR, 54.91 Kms

Philippines, Flood in Western Visayas

23:13 Sep 24, 2017

Negros Occidental Province, 60.17 Kms

Philippines, Flooding in Negros Occidental, Region VI

06:00 Jan 01, 2021

Negros Occidental, Region IV, 64.91 Kms