Here is a graph that shows the number of earthquakes and the amount of tilt changed in the time before a volcanic eruption: Tiltimeters used by volcanologists measure changes in slope as small as one part per million.
(a graph; shows; the number of earthquakes and the amount of tilt) (the amount of tilt; changed; T:in the time; T:before a volcanic eruption) (Tiltimeters; used; by volcanologists) (Tiltimeters used by volcanologists; measure; changes in slope) Context(Tiltimeters used by volcanologists measure,List([124, 166))):(Here; is; a graph that shows the number of earthquakes and the amount of tilt)
Tiltimeters used by volcanologists measure,List([124, 166))
a graph the amount of tilt Tiltimeters Tiltimeters used by volcanologists Here
shows changed used measure is
the number of earthquakes and the amount of tilt
T:in the time T:before a volcanic eruption
by volcanologists
changes in slope
a graph that shows the number of earthquakes and the amount of tilt