Wikipedia explains all aspects of earthquakes (2023).

The Berkeley Seismological Laboratory provides earthquake and hazard information including real-time alerts to the public (USA 2023).

The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, and perform research into the causes and effects of earthquakes (U.S. Geological Survey 2023).

The EMSC runs an Earthquake Alert System for earthquakes in the Euro-Med region which consists of the rapid determination of the epicentre and the dissemination of the seismic alert message within the hour following the occurrence of the earthquake (2023).

This video takes a look at the movement of the earth's tectonic plates and how the release of extreme pressure built up at the plates' boundaries results in an earthquake (2 minutes / UK: The Daily Telegraph 2023).

This short animated video helps you prepare for an earthquake (USA: FEMA 2023)

Learn about the geophysics behind earthquakes, how they are measured, and where the most powerful earthquake ever witnessed occurred. (5 minutes / National Geographic 2020)

How can we determine the locations of tectonic plate boundaries?  How can we use seismic waves to pinpoint the epicenter of an earthquake?  In this activity, students will explore these questions using seismic data and triangulation (USA: California Academy of Sciences 2023).