6.9 Magnitude EARTHQUAKE rocks CEBU - NEGROS; TSUNAMI alert lifted

A very strong 6.9 magnitude earthquake rocked Visayas between the islands of Negros and Cebu on Monday at 11:49 a.m. according to the Phiippine Institute of Volcanology and Seismology (Phivolcs).

In Cebu, a number of families living in the coastal areas run into higher grounds for their safety as tsunami alert level 2 was raised by Phivolcs in Negros and Cebu regions.  (As of 2:30pm, PHIVOLCS has cancelled tsunami alert).

The earthquake also rattled tall buildings in downtown Cebu causing parts of Colon and Carbon area particularly the older establishments to evacuate.

Many schools cancelled their classes around noon and sent home their students.

In Negros Island, one child was killed after being crushed by collapsing wall.

Earthquake Details (Phivolcs):

  • Magnitude : 6.9
  • Date/Time : Monday, January 6, 2012 at 11:49 AM at epicenter
  • Location : 09.97°N, 123.14°E - 5 km N 41° W of TAYASAN (NEGROS ORIENTAL)
  • Depth of Focus : 10 km
  • Origin : TECTONIC

The USGS listed the following areas as the epicenter:

  • 72 km (44 miles) N of Dumaguete, Negros, Philippines
  • 74 km (45 miles) WNW of Tagbilaran, Bohol, Philippines
  • 80 km (49 miles) WSW of Cebu, Cebu, Philippines
  • 569 km (353 miles) SSE of MANILA, Philippines

The tectonic quake was felt in the following areas at the following intensities:

Intensity VII - Dumaguete City; Vallehermoso, Negros Oriental
Intensity VI - La Carlota City and La Castellana, Negros Occidental; Argao, Cebu
Intensity V - Roxas City; Dao and Ivisan, Capiz; Iloilo City; Ayungon, Negros Oriental; Kanlaon City; Lapu-lapu City; Guimaras; Cebu City; San Carlos City; Bacolod City; Sagay City; Tagbilaran City; Candoni, Binalbagan, Negros Occidental
Intensity IV - San Jose de Buenavista, Pandan, Anini-y, Patnungon, Antique; Kalibo, Aklan; Dipolog City; Sipalay, Negros Occidental; Ormoc City
Intensity III - Butuan City, Agusan del Norte; Legaspi City, Albay; Carmen, Cagayan de Oro; Tacloban City; Catbalogan; Saint Bernard, Southern Leyte; Masbate, Masbate; Cagayan de Oro City
Intensity II - Cabid-an, Sorsogon; Borongan, Eastern Samar; Mambajao, Camiguin
Intensity I - Pagadian City

Two aftershocks were also recorded in less than an hour after the first quake hit (Source: USGS).

  • February 06, 2012 at 12:03:28 PM at epicenter : 4.8 Magnitude located 62 km (38 miles) N of Dumaguete, Negros, Philippines 
  • February 06, 2012 at 12:20:03 PM at epicenter : 5.6 Magnitude located 71 km (44 miles) SSE of Bacolod, Negros, Philippines

According to Richter Scale, Magnitude 6 earthquake is strong enough to badly damage average buildings while Magnitude 7 is strong enough to destroy even well-built structures.

On the other hand, people find it difficult to stand and pond water begins to ripple and form waves, furniture breaks, bricks fall, plaster cracks, and large bells ring in Intensity VII earthquake while for Intensity VI earthquake, everyone feels this earthquake, and some people run outside in fright. People find difficulty walking in straight lines. Windows and dishes break, pictures fall off walls, and small bells ring.

Stay tuned for more updates...

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