#RFB-11000524Reading: Fill in the BlanksAcademic,CoreMedium
Tsunamis
Official Question Material
Prep: Varies
Usually, we use pressure [blank] on the seafloor to tell us when a tsunami is moving over the sensors. But these pressure changes only tell us there is a tsunami after it has passed the sensors. Instead, the team used a set of sensors in the Pacific Ocean to measure magnetic field and sea-level change [blank] . They found that the tsunamis were indeed [blank] by changes in the magnetic field in the water.
Sample Answer & Audio Transcript
Usually, we use pressure gauges on the seafloor to tell us when a tsunami is moving over the sensors. But these pressure changes only tell us there is a tsunami after it has passed the sensors. Instead, the team used a set of sensors in the Pacific Ocean to measure magnetic field and sea-level change simultaneously . They found that the tsunamis were indeed preceded by changes in the magnetic field in the water.
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