GILGIT-BALTISTAN / RankWire.AI / – Northern Pakistan remains active seismically, with recent tremors affecting Gilgit-Baltistan, a region frequently impacted by earthquakes due to its tectonic setting. This week, a notable earthquake measuring 5.4 magnitude struck early Thursday, sending strong shocks through parts of Gilgit-Baltistan. According to Pakistan’s official seismic record, the quake registered at magnitude 5.3. It occurred at 5:35 a.m. local time on August 13, with its epicenter approximately 27 kilometers northwest of Sost, near the Khunjerab area. The Pakistan Meteorological Department estimated the quake’s depth at 15 kilometers. During the early morning hours, residents across several northern communities experienced the tremors.
The seismic event impacted districts such as Hunza and Nagar, with Chipurson Valley in Upper Hunza reporting some of the most evident ground disturbances. People evacuated their homes as the shaking propagated through communities flanked by steep mountain slopes. Subsequent landslides and falling rocks were reported in parts of the valley. In particular, a rockfall obstructed the Chipurson Valley road near Ramanji, disrupting local access. This route is critical for connecting remote settlements within a region where mountain roads serve as vital lifelines between villages and larger towns.
Initial assessments from authorities confirmed no casualties or injuries from the main quake. Additionally, no confirmed structural damage was reported at that stage. The primary impacts observed involved rockfalls and landslides that affected local infrastructure. The Gilgit-Baltistan administration actively monitored affected zones and road conditions following the tremor. Officials also inspected access points to settlements where debris had reached mountain routes. The earthquake added to a series of seismic events that have struck northern Pakistan in 2026, a year marked by recurrent tremors.
Rockfalls Block Road Access in Upper Hunza
The quake’s epicenter was near Sost, a town along the Karakoram Highway corridor in northern Pakistan. Sost, located south of the Khunjerab Pass, serves as a gateway for communities across Upper Hunza. The Khunjerab route connects Pakistan to China’s Xinjiang region through a high-altitude border crossing. The mountainous terrain surrounding much of the district makes road access particularly susceptible to rockfalls and slope failures. The tremors experienced on Thursday produced noticeable shaking throughout this remote area, with effects most prominent among communities closest to the epicenter.
Later on Thursday morning, a second earthquake struck the same general region. Official seismic data indicated that this aftershock occurred at 9:24 a.m. local time, with a magnitude of 4.7 and a depth of 19 kilometers. Its epicenter was approximately 28 kilometers west-northwest of Sost, very close to the initial quake. Both tremors happened within roughly four hours, extending a period of heightened seismic activity across Upper Hunza and nearby districts.
Repeated Earthquakes Plague Northern Pakistan
Earlier this year, the region also experienced a stronger seismic event. On January 19, a magnitude 5.8 earthquake affected Hunza, Ghizer, and other parts of Gilgit-Baltistan. That quake triggered landslides, damaged homes, and blocked roads across several mountain communities. Tragically, one person lost their life, and several others sustained injuries. Chipurson Valley also suffered damage to residences and local infrastructure, complicating travel and access to isolated settlements in the aftermath.
The northern mountain belt of Pakistan forms part of a highly active seismic zone driven by significant tectonic plate movements. Earthquakes are common in Gilgit-Baltistan, Kashmir, and neighboring northern Pakistan and Afghanistan. The August 13 event again centered near Sost, producing strong tremors in communities in Upper Hunza. While landslides and rockfalls disrupted transportation routes, officials confirmed no casualties from the main earthquake. A second significant tremor occurred later the same morning, underscoring the ongoing seismic risks in the region.