The Moon Experiences Regular Moonquakes

Featured in Ripley's Believe It or Not!

MINI BELIEVE IT OR NOT –

Studying data collected in the 70’s, scientists discovered that the moon has regular moonquakes.

Between 1969 and 1972, Apollo astronauts placed seismometers on the moon
Scientists discovered there are four different types of moonquakes

Deep quakes are caused by tides and happen about 700 km below the surface
Vibrations from the impact of meteorites
Thermal quakes are caused by the expansion of crust when it first reaches the sun after two weeks of lunar night
And shallow quakes that happen 20-30 km below the surface


The quakes can register up to a 5.5 on the Richter scale and last longer than 10 minutes



MINI BION
“BIONs” – short for Believe It or Not – is the word we use at Ripley’s to refer to anything that is unbelievable and worthy to become part of Ripley’s lore and collection.

Source: The Moon Experiences Regular Moonquakes