What can you learn from only one seismogram what can't you learn?

From a single seismogram, you can learn about the magnitude, duration, and type of seismic waves generated by an earthquake, as well as the event's approximate location based on the arrival times of different wave types. However, you cannot determine the fault mechanism, depth of the earthquake, or the full extent of damage and effects without additional data from multiple seismograms or networks. Furthermore, a single seismogram lacks information about aftershocks or the broader geological context surrounding the event.