Earthquake Swarms Explained

Seismic activity in Iceland is showing signs of slowing down, which may indicate that magma is moving closer to the surface. This quiet phase is reminiscent of patterns observed before past eruptions, where a swarm of earthquakes occurs rather than a sequence of aftershocks. Understanding the distinction between these seismic events is crucial, as swarms can feature their largest quakes occurring in the middle of the sequence, unlike traditional aftershocks.