Strong earthquake cuts power and damages houses in Cantilan and Carrascal, Mindanao, Philippines

Bucas Grande Island - Panoramio picture by Ronnie Muring -

UPDATE 15:53 UTC : After screening our many Philippine sources, we are happy to report that this earthquake made NO structural damage, injuries or casualties.

UPDATE 08:56 UTC : Engineering district of Surigao del Sur is conducting clearing operations to remove debris along the Benoni area highway.

UPDATE 08:41 UTC : Some landslides and falling rocks have been reported by the National Disaster Risk Reduction and Management Council. Rockfall on the National Highway near Carrascal, however, roads are still passable.

UPDATE 08:35 UTC : Earlier reports of damaged houses are still unconfirmed so far.

UPDATE 08:33 UTC : Local Mindanao news media are reporting that people from the coastal areas near the epicenter are returning home after seeking higher grounds for a possible Tsunami risk and staying there for many hours .

UPDATE 07:27 UTC : Jaime Uriarte Comparativo reports from Cantilan to Earthquake-Report (near the epicenter area) :

I was at the house with my family when the shaking was going on. we ran away to the nearby open space, then suddenly power were cut-off, we keep on praying...then when the shaking halted.
I went to the municipal hall to join with the other members of the Cantilan Municipal Disaster Coordinating Council for the monitoring.
Landslides in the mountains (boundaries between Carrascal and Cantilan), furnitures were in disarray, bell rung, some man-made light structures collapsed but no concrete buildings wrecked.

UPDATE 04:53 UTC : Local highways are being checked for damage, however we have not been able to confirm the quake damage to houses as yet. Bombo Radyo has reported in tagalog that the National Disaster Risk Reduction and Management Council (NDRRMC) has been sent to assess the damage caused by the earthquake, but also has not confirmed any damaged houses. No casualties have been reported.

UPDATE 04/03-00:27 UTC : As predicted by Phivolcs and feared by Earthquake-Report, this shallow earthquake caused a total power blackout in the cities of  Carrascal and Cantilan  in the Surigao del Sur province. Power was restored 2,5 hours later.
The quake damaged some houses.
People to run away from the coast as a precaution of a possible Tsunami.
Cantilan disaster management officials alerted local residents "to be on alert if a call for evacuation is needed."

UPDATE 18:10 UTC : At 10.27 PM(local time), another weak quake of Magnitude 3.3 struck the Carrascal area.

UPDATE 17:55 UTC : Surigao del sur is one of the supplier of agricultural items like, rice, banana and some tropical fruits. Copper, chromite and silver are also found here (source : Wikipedia)

UPDATE 17:45 UTC : Phivolcs MMI scale has a range from 0 to 10. The MMI scale used in USA and middle- and South America has a range of 0 to 12, which means that a VI in the Philippines means a VII in the western used MMI scale.  Very Strong shaking (see below) is the logical explanation for this value.

UPDATE 17:12 UTC : No news so far in the National and Regional Filipino press. Most newspapers have only very limited news during the nightly hours.

UPDATE 16:48 UTC : Close-by villages are : Socorro (Bucas Grande), Claver (Mindanao) and Carrascal (Mindanao)

UPDATE 16:42 UTC : Phivolcs VI scale  =  Very Strong - Many people are frightened; many run outdoors. Some people lose their balance. motorists feel like driving in flat tires. Heavy objects or furniture move or may be shifted. Small church bells may ring. Wall plaster may crack. Very old or poorly built houses and man-made structures are slightly damaged though well-built structures are not affected. Limited rockfalls and rolling boulders occur in hilly to mountainous areas and escarpments. Trees are noticeably shaken.

UPDATE 16:39 UTC : Phivolcs writes :
Expecting Damage : YES
Expecting Aftershocks : YES

Phivolcs earthquake map Mindanao March 3 2011

UPDATE 16:34 UTC : Very strong reported Felt Phivolcs values !
Intensity VI - Carrascal, Surigao del Sur; Cantilan, Surigao Del Sur
Intensity V - Claver, Surigao del Norte
Intensity III - Butuan City; Buenavista, Agusan del Sur; Socorro & Mainit, Surigao del Norte
Intensity II - Surigao City; Bislig City
Intensity I - Cagayan De Oro city

UPDATE 16:08 UTC : Phivolcs locates the epicenter of this earthquake 2 km out of the Mindanao mainland shoreline (see here - green arrow)

UPDATE 16:02 UTC : Phivolcs (Seismological Institute Philippines) just reported a Magnitude of 5.7 (Ms) at an extremely shallow  depth of 3 km (may be revised later, but maintained so far)

UPDATE 15:49 UTC : Earthquake-Report maintains his ORANGE color (moderately dangerous due to the close-by city of Socorro. Socorro is a 5th class municipality in the province of Surigao del Norte, Philippines. According to the 2000 census, it has a population of 17,932 people in 3,071 households. (source Wikipedia)

UPDATE 15:45 UTC : USGS has confirmed the earthquake at Magnitude 5.4 and a depth of 38.7 km.
61 km (38 miles) ESE (115°) from Surigao, Mindanao, Philippines

UPDATE 15:41 UTC : What initially looked very dangerous (strong and shallow) tends to be (Luckily) a harmless earthquake at a safe distance out of the coast.

UPDATE 15:38 UTC : Only EMSC has reported this earthquake so far. USGS or PHIVOLCS have not yet published data.

A strong earthquake occurred approx. 5 km out of the coast of the Mindanao island of the Bucas Grande Island. The city of Socorro (17,932 inhabitants) is at approx. 10 km distance.
The earthquake occurred around midnight (local time)

Most important Earthquake Data:
Magnitude : 5.4 (USGS) 5.7 (Phivolcs)
UTC Time : Thursday, March 03, 2011 at 15:12:00 UTC
Local time at epicenter :  local time 23:12 March 3 2011
Depth (Hypocenter) : 38.7 km
Send an "earthquake experience report" for this earthquake
Geo-location(s) :
54 km S 57° E of Surigao City (Phivolcs)

Links to important maps
USGS Did You Feel It Map
Google satellite map of the area showing the kind of terrain the earthquake took place
3-dimensional view of the earthquake area (Phivolcs epicenter location)
USGS historic earthquakes map
USGS Seismic hazard map

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  1. It is truly shocking but its reality,and we can't ignore reality.How easily an incident can change the present totally and can snatch uncountable lives!We couldn't even know that things will not be same at all a minute after,it will be changed,all we be ruined.But still ,we people are not at all worried about our lives,no tension for security,no plan for preparedness .We can't stop or chance happenings ,it's not in our hand but can't we at least prepare ourselves to defeat the disaster?Yes,we can.We need to be aware to save our lives.As because Prevention is better than Cure,isn't it?

  2. Sa kabutihang-palad ito ay hindi lubos ang katapusan ng mundo! Paano malakas na lindol ay ang pakiramdam?