Magnitude 5.7 Earthquake Jolts Kalamansig in Sultan Kudarat
A significant seismic event rattled the town of Kalamansig in Sultan Kudarat, as a magnitude 5.7 earthquake struck in the early hours of Wednesday, January 28, 2026. The tremor, which occurred at precisely 1:05 AM, was recorded by the Philippine Institute of Volcanology and Seismology (PHIVOLCS), highlighting its impact across various areas in Mindanao.
Details of the Seismic Activity
According to PHIVOLCS, the earthquake originated at a depth of 19 kilometers, with its epicenter located approximately 55 kilometers south of Kalamansig. This depth and location contributed to the widespread shaking experienced in neighboring provinces, underscoring the region's vulnerability to seismic events.
Intensity Reports Across Affected Areas
The earthquake was felt with varying intensities across multiple locations, as reported by PHIVOLCS:
- Intensity 4: This moderate shaking was reported in Lebak and Palimbang, both situated in Sultan Kudarat, indicating stronger ground motion in these areas.
- Intensity 3: Residents in Norala, South Cotabato, and Esperanza in Sultan Kudarat experienced noticeable tremors, though less intense than in the hardest-hit zones.
- Intensity 2: A lighter shaking was felt in several towns, including M'Lang and Pikit in Cotabato; Maitum, Malungon, and Sarangani; as well as Tantangan, City of Koronadal, Banga, Tupi, Surallah, Tampakan, and Santo Nino in South Cotabato; and Isulan, Columbio, and Bagumbayan in Sultan Kudarat.
- Intensity 1: Minor tremors were reported in Kadingilan, Bukidnon; Maasim and Alabel in Sarangani; and even as far as Zamboanga City, demonstrating the quake's extensive reach.
Implications and Regional Context
This earthquake serves as a reminder of the seismic risks in the Philippines, particularly in Mindanao, where tectonic activity is common. While no immediate reports of significant damage or injuries have been detailed, such events can disrupt communities and infrastructure. Authorities continue to monitor the situation, urging residents to stay alert for potential aftershocks and follow safety protocols. The widespread intensity reports highlight the need for ongoing preparedness and resilient building practices in earthquake-prone areas like Sultan Kudarat and its surroundings.
