Nov 27, 2025 · Earthquake, any sudden shaking of the ground caused by the passage of seismic waves through Earth’s rocks. Earthquakes occur most often along geologic faults, narrow zones where rock …

In its most general sense, an earthquake is any seismic event—whether natural or caused by humans—that generates seismic waves. Earthquakes are caused mostly by the rupture of geological …

Scientists can’t tell that an earthquake is a foreshock until the larger earthquake happens. The largest, main earthquake is called the mainshock. Mainshocks always have aftershocks that follow. These …

Earthquakes are more common in some parts of the world than others, because some places, like the U.S. state of California, sit on top of the meeting point, or fault, of two plates. When those plates …

3 days ago · Human activity can cause “healed” faults to release their stored strength, triggering unexpected quakes in tectonically stable regions.

1 day ago · When an earthquake shook homes in a small Lancashire village, those living there felt as though "the roof was falling in". The tremor in the north-west of England on Wednesday was so …

An earthquake is the sudden release of strain accumulated for years and even centuries in the Earth’s crust. Slowly moving tectonic plates cause the strain to build up over time. When the strain is more …

Apr 1, 2025 · An earthquake is one of nature’s most powerful and destructive forces, shaking the Earth’s surface with a tremendous force that can level cities, cause tsunamis, and change the landscape.

2 days ago · 3.3-magnitude earthquake 'shakes homes and wakes people up' in the North West Some people posted online about feeling the tremors, not just near the epicentre in north Lancashire, but …

1 day ago · Residents in Nevada woke up to a shocking 5.9 magnitude earthquake alert, but after the panic settled, the whole thing turned out to be a fake quake alert sent by USGS.