For a shallow-focus earthquake, the hypocentre and epicentre are virtually coincident, especially as detected at distant seismograph stations.

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A shallow-focus earthquake has its hypocentre (the point where the earthquake originates underground) relatively close to the earth's surface, which means that the epicentre (the point on the surface directly above the hypocentre) is also very close. As a result, the two positions can be considered virtually coincident, especially when detected at distant seismograph stations.

For a Shallow-Focus Earthquake, the Hypocentre and Epicentre Are Virtually