But the seasonal ground movements have to be taken into account when scientists track other kinds of subtle ground movement that can signal quakes.
42.
Prior to the event, estimates about ground movement on the lakebed were generally accepted and a number of buildings were built on these estimates.
43.
But the seasonal ground movements have to be taken into account when scientists track other kinds of subtle ground movement that can signal quakes.
44.
"Measuring Ground Movements in the Koa ` e Fault System . " USGS Hawaiian Volcano Observatory ( HVO ) . 7th Apr . 2003.
45.
In the July 11 test, the shake table faithfully reproduced 20 seconds of ground movements recorded during the Northridge earthquake 10 miles from the epicenter.
46.
"The dire political rhetoric pouring out of Indian leaders, including the prime minister . . . is parallel to the ground movement, " he said.
47.
During the entire tunneling activities ground movements have been documented and controlled using an extensive monitoring programme installed both inside the tunnels and above ground.
48.
They deployed other sensors to pick up ground movements along with shifts in gases, electrical and magnetic fields that flow from subterranean movements of magma.
49.
Japan, one of the more seismically active places on Earth, has an elaborate network of Global Positioning System devices to track even very slight ground movements.
50.
The researcher correlated the GPS data with data on snow depths and concluded that the weight of the snow was responsible for the vertical ground movement.
