Seismic stations consist of a seismometer for sensing ground motion, a clock for determining time, and a recorder for collecting data of earthquakes. They detect and measure Earth's ground motion.
Hope this helps!
I'm not so good at science but I believe just from the Internet and common sense that it could be found in Hawaii, Yellowstone, Iceland, and (not completely sure for last one) but maybe Pompeii. I know the first 3 are most likely correct but I'm not completely sure about Pompeii. Just look it up, lol
Answer:
Answer : a decrease in sea levels
Explanation:
Distance of two points can be calculaetd using formula:

Here x1 and y1 are coordinates of point A and x2 and y2 are coordinates of point B.
Now we insert numbers into formula: