Chat with our AI personalities
Seismologists align the seismogram with the time-distance graph by identifying the arrival times of seismic waves, specifically the Primary (P) and Secondary (S) waves, on the seismogram. They measure the time difference between these wave arrivals to determine the distance to the earthquake's epicenter using the time-distance graph, which correlates these arrival times to distances. By matching the observed arrival times on the seismogram with the corresponding distances on the graph, they can accurately locate the earthquake's source. This process helps in understanding the event's magnitude and depth.
The trace that records an earthquake from seismic instruments is known as a seismogram. It shows the ground motion as a function of time, with peaks corresponding to the arrival of seismic waves generated by the earthquake. Seismologists analyze seismograms to determine the earthquake's location, magnitude, and depth.
The three waves that are shown on a seismogram in order are P waves, S waves, and surface waves.
Longitude interval refers to the distance between two meridians on the Earth's surface, measured in degrees. It helps determine the east-west position of a location on the globe. The Earth is divided into 360 degrees of longitude, with the prime meridian (located at 0 degrees) serving as the starting point.
The word is seismogram.