Answer:
Information Contained in Seismogram
Step-by-step explanation:
There are three elements to determine the simultaneous movement in three directions: up-down, north-south, and east-west. Each direction of movement gives information about the earthquake. Seismograms are used to determine the location and magnitude of earthquakes.
This combination of instruments tells a seismologist the general direction of the seismic wave source, the magnitude at its source, and the character of the wave motion. Instruments at other stations must be used to get a precise fix on the earthquake's epicenter.