Strong very dangerous earthquake in Mindanao, Philippines (near Kabacan, Carmen, Libungan, President Roxas and Midsayap)

Last update: June 1, 2013 at 4:26 pm by By Ashish Khanal

Update 15:54 UTC : We get gradually a better view on what is happening as we have received a number of reports from Kabacan which is less than 30 km from the epicenter. these reports are confirming the strong expected shaking + also the many aftershocks (at least 10).
Kabacan Experience reports :
– still experiencing very strong aftershocks. almost 10 aftershocks already (Very Strong shaking indicated)
– in only split of seconds, earthquake for 3x (strong shaking indicated)
– Lasted for less than a minute (Very Strong shaking indicated)
– Both swinging and bouncing motion (Very Strong shaking indicated)
In Libungan, a location 35 km west of the epicenter, the power was out shortly
– I opened the door, got out of the house. Very strong,  even our dogs panicked. its 10:28pm on our clock, followed by slight shaking at around 10:55pm .we are viewing PGT but power was off for few minutes.
– Cannot avoid panicking as I was so afraid.
Another location with rather high Shaking values is Midsayap :
– my family was so afraid it is very strong earthquake i easily carry my grand ma because of too nervous all i want is to escaped inside the house carrying my lola a very impressive adrenalin rush
– Strong shaking, swaying of framed pictures on wall.., really caused fear among us.
– I’m worried for our house is not concrete. We’re not able to stand and look for safest place.
– So afraid. It was a sudden shake but really strong.
– it was a strong earthquake, i and my kids seek refuge at the lawn where it is open and the safest place for us.

Update 15:54 UTC : The earthquake occurred at 22h local time. At this time a day, more people are at home and therefore more vulnerable to collapsing residential buildings.
Landslides: The maximum slope in the area of the earthquake is 49.865% and the maximum altitude is 2804 m. Since this is a medium slope, the risk of earthquake induced landslides is medium.
There are no Hydrodams in the greater epicenter area (gdacs data)

Update 15:31 UTC : No information yet from the epicenter area. The earthquake occurred at 22:10 local time, which means probably in the dark. Normally it takes a few hours before Civil Defense reports are starting to come in.

Update 15:16 UTC : Preliminary Focal Mechanism as reported by CPPGeophysics

Update 15:16 UTC : Carmen is a 1st class municipality in the province of Cotabato, Philippines. According LGPMS (as of 2009), it has a population of 65,670 people in 13,325 households. (source Wikipedia)

Update 15:12 UTC : GDACS reports the following locations close with their distance to the epicenter : The earthquake happened 87km from Davao. The nearest populated places are: Wangay (17km), Mlang (16km), Imbuc Rancheria (18km), Kayaga (12km), Lamiaon (18km), Kinudal (7km), Linao (15km), Carman (5km), Miuban (19km), Tubac (17km), Manarapan (7km), Simoney (6km), Kibudtungan (12km), Datu Santilla (17km), Liliongan (18km). The closest civilian airport is Awang (70km).

Update 15:15 UTC : So far, we have not received any I Have Felt It reports from the direct epicenter area (President Roxas or Carmen).

Update 15:12 UTC : The USGS picture below shows scary data – A MMI VII (very strong) shaking is expected to be felt by 110,000 people !

Update 14:54 UTC : The Phivolcs epicenter map below shows the main faults cris-crossing the many islands but surprisingly not a main fault near the epicenter of today’s earthquake

Update 14:54 UTC : Phivolcs Philippines is just like us expecting damage as well as aftershocks.
The shaking intensities as reported by Phivolcs are as follows (at ER we think that the shaking will be stronger, more like USGS predicts):
Intensity IV – Matalam, North Cotabato
Intensity III – Tacurong City, Marawi City; Kidapawan City; Cotabato City; Cagayan de Oro City
Intensity II – Davao City; Valencia City; Polanco, Zamboanga del Norte
Important : the Phivolcs Shaking values are NOT MMI values but are according their own scale which is as follows :
II : Slightly Felt – Felt by few individuals at rest indoors. Hanging objects swing slightly. Still Water in containers oscillates noticeably.
III : Weak – Felt by many people indoors especially in upper floors of buildings. Vibration is felt like one passing of a light truck. Dizziness and nausea are experienced by some people. Hanging objects swing moderately. Still water in containers oscillates moderately.
IV : Moderately Strong – Felt generally by people indoors and by some people outdoors. Light sleepers are awakened. Vibration is felt like a passing of heavy truck. Hanging objectsswing considerably. Dinner, plates, glasses, windows and doors rattle. Floors and walls of wood framed buildings creak. Standing motor cars may rock slightly. Liquids in containers are slightly disturbed. Water in containers oscillate strongly. Rumbling sound may sometimes be heard.

Update 14:44 UTC : We have just changed the title of this page from ‘dangerous into ‘very dangerous. The main reason is the very populated area and new data from local Phivolcs (Philippines seismological agency). they have reported a Magnitude of M5.7 at a extremely shallow depth of 5 km and thats really bad news for an radius of 25 km around the epicenter.

Update 14:41 UTC : The village of Carmen is at only 4 km from the epicenter (USGS data). The shaking lasted from 5 seconds to even a minute like some people reported. If a shaking of 30 seconds to a minute is confirmed, this will be bad news, as the longer the shaking is lasting the more chance there is for damage.

Update 14:35 UTC : The image below (Google Satellite View) is showing an additional reason of fear : A lot of farming fields left of the river and near the USGS epicenter (Which differs a lot from the initial EMSC epicenter). USGS is locating the epicenter very close to Carmen.

Update 14:32 UTC : The shaking map below shows why we are calling this earthquake dangerous. An MMI very strong shaking is (theoretically) expected by USGS.

Update 14:28 UTC : USGS has reported a depth of 18 km and a Magnitude of M5.6.
President Roxas is a location of 10,000 inhabitants at only 14 km from the epicenter (EMSC epicenter location)

A strong earthquake occurred in the middle of Mindanao.
Earthquake-Report.com calls this earthquake as very dangerous for damage and/or injuries, the main reason being the shallow depth and the chance on landslides.

932 km SE of Manila, Philippines / pop: 10,444,527 / local time: 22:10:11.0 2013-06-01
54 km W of Davao, Philippines / pop: 1,212,504 / local time: 22:10:11.0 2013-06-01
14 km NE of President Roxas, Philippines / pop: 10,879 / local time: 22:10:11.0 2013-06-01

Most important Earthquake Data:

Magnitude : 5.6

Local Time (conversion only below land) : 2013-06-01 22:10:09

GMT/UTC Time : 2013-06-01 14:10:09

from:    http://earthquake-report.com/2013/06/01/strong-earthquake-mindanao-philippines-on-june-1-2013/