1. The point on the Earth's surface directly above the focus of an earthquake.
Usage: Plural of epicentre (British spelling); American spelling is epicenter.
2. The central point or focus of something; the place where something is most intense or important.
Usage: Figurative use

Examples

• The epicentres of the recent earthquakes were located in the Pacific Ring of Fire.
• Scientists mapped the epicentres of all seismic activity in the region over the past decade.
• The city became one of the epicentres of the cultural revolution.
• Multiple epicentres of infection were identified during the disease outbreak.
• The epicentres of political unrest shifted as the conflict spread.
• Researchers studied the epicentres of innovation in the tech industry.