A map showing the seismic activity of the Napa Valley earthquake.

Nine earthquakes were recorded in this area of South Carolina in 2024, but these are the first tremors of this year.

Damaging earthquakes are most likely to occur in these areas, according to the United States Geological Survey.

If you've ever wondered where — and why — earthquakes happen the most, look no further than a new map, which plots more than a century's worth of nearly every recorded earthquake strong enough ...

A map showing the seismic activity of the Napa Valley earthquake.