The difference in arrival times between P and S-waves as measured on a seismometer can be used to determine the distance to the origin.
The distance of an epicenter from a seismograph station can determined by the time it takes for the seismic waves to reach each station. You need at least 3 seismic stations to record the event to determine this. The time taken for each seismic station to resisted the event will be different as they are different distances from the epicenter. The distance to the epicenter can then be calculated for each station and a epicenter can be determined by a triangulation from all stations that have registered the event.
distance to the epicenter
Three seismic stations are needed to find the epicenter of an earthquake because all three radial circles made by the stations will only meet at one point. (example: if you only had to circles they would meet at two different points)At least 3
mantle
"Epicenter" usually refers to a point on the Earth's surface directly above the "focus" of an earthquake. When a quake occurs, a seismic monitoring station can determine how far away it was from the shock wave pattern -- that is called the "epicentral distance" -- but not the exact direction. But with three or more monitoring stations' epicentral distances, one can draw intersecting circles to pinpoint the exact location.
The distance of an epicenter from a seismograph station can determined by the time it takes for the seismic waves to reach each station. You need at least 3 seismic stations to record the event to determine this. The time taken for each seismic station to resisted the event will be different as they are different distances from the epicenter. The distance to the epicenter can then be calculated for each station and a epicenter can be determined by a triangulation from all stations that have registered the event.
the distance to the epicenter
The difference in arrival times of P and S waves.
The distance between a seismic station and the earthquake epicenter is determined from the S-P interval, which is the time difference between the time of arrival of the first P wave and the first S wave.
The distance between a seismic station and the earthquake epicenter is determined from the S-P interval, which is the time difference between the time of arrival of the first P wave and the first S wave.
The distance of an earthquake epicenter from a seismic station. Using the Three point method, the distance from 3 seismic stations are used to locate the epicenter by triangulation.
The distance of an earthquake epicenter from a seismic station. Using the Three point method, the distance from 3 seismic stations are used to locate the epicenter by triangulation.
A single seismic station can tell you the distance to an earthquakes epicentre but will give you no information on it's location. Seismic vibrations take time to travel to a seismic station and when you have two seismic stations you can narrow down the location of the earthquake's epicentre to two possible locations. Add in a reading from a third station and you can nail down the exact location because if you draw 3 circles one round each station with the size of each circle proportional to the distance of the station form the epicenter, they will intersect at one location on the planet and that location is the epicenter.
distance to the epicenter
yard
it take 45or350 p-waves to get to the seismic station
Three seismic stations are needed to find the epicenter of an earthquake because all three radial circles made by the stations will only meet at one point. (example: if you only had to circles they would meet at two different points)At least 3