Magnitude-7.2 quake rocks Mindanao

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  • Photos show the aftermath of the magnitude 7.2 earthquake which was felt at Intensity 5 in General Santos City

Metro Manila (CNN Philippines, April 29) — A magnitude 7.2 earthquake shook Sarangani town in Davao Occidental and other areas in Mindanao on Saturday morning.

The earthquake struck an area off Sarangani at around 4:23 a.m., the Philippine Institute of Volcanology and Seismology (Phivolcs) said.

Phivolcs said the quake was tectonic in origin and had a depth of  57 km.

Multiple aftershocks have followed the quake, the strongest recorded by Phivolcs was a magnitude-4.1 tremor at 4:54 a.m.

At around 7 a.m., Phivolcs lifted the tsunami warning it had earlier issued, warning residents to stay away from the coast fronting Celebes Sea in Sarangani, Davao Occidental, South Cotabato, Davao Oriental, and Sultan Kudarat.

“Tsunami threat is over and only a 10 cm wave was produced,” Phivolcs Director Renato Solidum said in a text message sent to CNN Philippines.

With the quake's depth, Phivolcs was not expecting strong tsunami waves, Phivolcs science research analyst Karl Vincent Soriano said.

"We just released an advisory for sea level disturbances which means--there will be change of sea level but it will not exceed 1 meter in wave height," Soriano explained.

Malacañang: Help underway

Malacañang asked residents affected by the quake to remain calm but vigilant.

"Our disaster officials are now conducting rapid damage assessment and we assure those affected (families) that immediate assistance will be provided," Presidential Spokesperson Ernesto Abella said in a statement.

The earthquake was felt in various intensities in Mindanao.

Intensity 5:

  • General Santos City
  • Koronadal City
  • Santa Maria, Jose Abad Santos, Don Marcelino, and Balot Island in Davao Occidental
  • Polomolok and Tupi, South Cotabato
  • Alabel, Malapatan, and Glan in Sarangani province
  • Palimbag, Sultan Kudarat

Intensity 4:

  • Davao City
  • Cotabato City
  • Zamboanga City

Intensity 3:

  • Cagayan De Oro City

Intensity 2:

  • Kidapawan City

Authorities are now trying to determine the extent and cost of the damages.

In the municipality of Glan in Sarangani province, damaged structures include the municipal hall, a hospital, police headquarters, public market, department store, and wharf.

The quake also collapsed roofs and shattered glass panels of houses and buildings in General Santos City.

Although Phivolcs has lifted the tsunami warning, residents here are still advised to stay away from strong currents in the coastlines.

But in Koronadal City, the quake did not stop thousands of motorists from their bid to break three Guinness world records.

The first-ever motorcycle festival went on as scheduled despite other residents being worried about aftershocks.

This is a developing story. Please refresh page for updates.

CNN Philippines' Rex Remitio contributed to this report.