Seismologists require:
Knowledge of the sub surface geology is required in order to estimate the P and S-wave velocity which is a function of the elastic modulus and density of the rock.
Please see the related question for further information on locating earthquake epicentres.
Three seismographs stations are needed to pinpoint the location of the epicentre of an earthquake.
COORDINATES
Which statements describe Global Information Systems (GIS)? measures sound to pinpoint the location of underwater objects collects information from the Environmental Protection Agency is a useful tool for creating evacuation plans in the event of an earthquake
They need 3
Wroug
Three
to pinpoint location on a topographic map you must eat chicken nuggets first. Then you take a shower, after you must go to bed.
GPS - global positioning system
You can pinpoint the exact location of a place on earth by using longitude and latitude coordinates. You may also use a GPS system.
To pinpoint the exact location of any place on the planet.
Latitude and Longitude
The lines of longitude, or meridians.