Moonquakes

Moonquake data may help future lunar landings. The moon, long considered a dead world, may be more lively than we thought. The Science News website reports that seismometers left decades ago at the Apollo landing sites have detected thousands of moonquakes over the years.

Scientists believe the quakes are caused by faults mapped by NASA’s lunar reconnaissance orbiter. Eight quakes have occurred within some 30 kilometers of steplike cliffs on the lunar crust. Called scarps, the cliffs indicate that one side of a fault has pushed up or slid down.

The data suggests that the moon is still tectonically active. It also will help scientists pinpoint the best places for future spacecraft to land— and what sites to avoid.

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