Assertion: earthquake | /r/AtLocation | depth
Facets:
value: from near the earth's surface
type: LOCATION
value: to 700 km deep
type: LOCATION
value: between 28–47 kilometers
type: LOCATION
Source sentences:
text: In the southern section of the subduction zone from latitudes 40°N to 41.8°N low frequency earthquakes occur at depths between 28–47 kilometers, whereas farther north near Vancouver Island the range contracts to approximately 25–37 kilometers.
text: Earthquakes occur at depths from near the Earth's surface to about 700 km deep.