A magnitude 4.3 earthquake struck near Guimbal, Iloilo on Tuesday morning, causing light shaking in parts of Guimaras and Iloilo City, but the Philippine Institute of Volcanology and Seismology (PHIVOLCS-DOST) expects no damage or aftershocks from the tremor.
Earthquake Details
The tectonic earthquake occurred at 9:21 AM Philippine Standard Time on April 15, 2026, with its epicenter located 7 kilometers south 30 degrees east of Guimbal, Iloilo. The quake originated at a shallow depth of 4 kilometers beneath the earth's surface at coordinates 10.60°N, 122.36°E.
Intensity Reports
PHIVOLCS recorded varying levels of shaking across the region based on instrumental readings. The strongest tremors were felt in Jordan, Guimaras, which experienced Intensity III shaking on the PHIVOLCS Earthquake Intensity Scale. This level of shaking is described as weak and is typically felt by many people indoors, particularly those on upper floors of buildings.
Intensity II shaking was recorded in Iloilo City and Buenavista, Guimaras. This lighter level of tremor is usually felt by few people at rest, especially those on upper floors. The lightest shaking, Intensity I, was detected in San Lorenzo, Guimaras, which is typically felt by very few people under favorable circumstances.
No Damage or Aftershocks Expected
According to PHIVOLCS assessment issued at 10:30 AM, the earthquake is not expected to cause any structural damage to buildings or infrastructure in the affected areas. The agency also does not anticipate aftershocks following this seismic event.
The earthquake's tectonic origin indicates it was caused by the movement of rock masses along fault lines beneath the earth's surface, which is common in the Philippines due to its location along major tectonic plate boundaries.
Official Monitoring
PHIVOLCS stated this will be the only bulletin issued for this earthquake unless additional information becomes available. The agency continues to monitor seismic activity across the Philippines through its network of monitoring stations.
Monitor official PHIVOLCS updates at phivolcs.dost.gov.ph.