In three different seismograph station distance of a quake is 500 km, 1200 km and 2000 km respectively. Location of the earthquake can be estimated by:
A. An average of the time interval between 𝑃 and 𝑆 waves from 500 km, 1200 km and 2000 km
B. Drawing circle from each station considering each distance as radius of circle. Intersection of the circles locates earthquake
C. The time interval between arrival of the first 𝑃 and 𝑆 waves
D. Drawing a line from each station towards the centre of the earth, intersection of lines locates earthquake
Answer:B
In three different seismograph station distance of a quake is 500 km, 1200 km and 2000 km respectively. Location of the earthquake can be estimated by:
A. An average of the time interval between 𝑃 and 𝑆 waves from 500 km, 1200 km and 2000 km B. Drawing circle from each station considering each distance as radius of circle. Intersection of the circles locates earthquake C. The time interval between arrival of the first 𝑃 and 𝑆 waves D. Drawing a line from each station towards the centre of the earth, intersection of lines locates earthquake