A fairly strong 5.9 magnitude earthquake struck northwest China on Monday, according to the US Geological Survey.
Agency data showed that the earthquake occurred at 11:59 pm China time.
As seismologists review available data, they may revise the magnitude of the reported earthquake. Additional information collected about the quake may also prompt USGS scientists to update the tremor intensity map.
Aftershocks in the area
An aftershock is usually a smaller earthquake that follows a larger earthquake in the same general area. Aftershocks are usually minor adjustments along a portion of a fault that slipped at the time of the initial earthquake.
Aftershocks can occur days, weeks, or even years after the first earthquake. These events can be equal to or larger in magnitude than the initial earthquake, and can continue to affect already damaged locations.
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