CHANGNING, June 28 — A magnitude 5.2 earthquake struck 8 kilometres west-northwest of Changning, China on Sunday at 16:12 UTC, according to the U.S. Geological Survey. The quake occurred at a depth of 10 kilometres, the USGS reported. No tsunami warning was issued.
The tremor was felt by at least 11 people, according to USGS data. The figure is based on early reports submitted through the agency’s “Did You Feel It?” system, which collects crowd-sourced observations.
Officials said that number may rise as more accounts come in from the region. At 10 kilometres deep, this was a shallow earthquake. Seismologists note that shallow events — those less than 70 kilometres deep — typically produce stronger shaking at the surface than deeper quakes of the same magnitude.
Earthquakes in the magnitude 5 range are classified as moderate and can cause minor to moderate damage near the epicentre, depending on local building standards and soil conditions. The area around Changning is no stranger to seismic activity.
According to the USGS, at least 45 earthquakes of magnitude 5.0 or greater have been recorded within roughly 300 kilometres of this location over the past two decades. The strongest of those was a magnitude 6.6 event in 2022. Seismologists advise that aftershocks are common following an earthquake of this size and may continue for days or even weeks.
People in the affected area are generally urged to be prepared for further shaking, though the USGS has not issued any specific warning for this event beyond its standard monitoring. The USGS detected the earthquake through its real-time global seismic monitoring network, which tracks seismic activity around the clock. The agency’s data provides the primary source of information for this event, as independent verification from Chinese state media or local authorities was not immediately available at the time of reporting.
The region’s seismic history, including the 2022 magnitude 6.6 quake, underscores the persistent tectonic stresses at work in this part of China. The shallow depth of Sunday’s tremor adds to the potential for noticeable ground motion, though the moderate magnitude suggests widespread destruction is unlikely.
Residents and local officials will be watching for aftershocks in the coming days, as the USGS continues to monitor the area through its network. The account indicates that the event, while significant, falls within the pattern of moderate seismic activity that has characterised this region over the past two decades.
