Understanding the National Earthquake Alerts Centre (education video)

Learn about earthquake monitoring in Australia through a visit to the National Earthquake Alerts Centre. Earthquakes are geological events that are detected by a network of seismometers; each 'station' sends seismic information for analysis and checking by seismologists who are on duty 24/7. We learn about the types of wave forms (primary, secondary and surface) and the sequence of events in the Centre when an earthquake is detected; the measurements made such as magnitude are then published on the earthquakes@GA webpage.