Moonquakes also

Press, 19 August 1981, Page 20

Moonquakes also

Earthquakes we know on these “shaky isles." but moonquakes are something we do not have to fear, and most of us would not even be aware that such seismic phenomena exist. During the Apollo missions to the moon in the late 19605, seismic equipment was left behind and it has given scientists a much clearer picture of moonquakes and how they are produced. The equipment has revealed that the moonquakes penetrate to a greater depth than their earthly equivalents and scientists believe the moonquakes are produced by tidal forces. The moon produces tides on the earth and this occurs vice versa on the

moon. The tides produce stresses in both planets, but it is only on the moon that these stresses are released as quakes.: This is because, .unlike the earth with its flexibility and its sliding plates, the moon is a rigid body. Moonquakes are one of the topics explored in the latest 8.8. C. science programme on Concert radio at 7.30 tonight. Others this week are a cancer study of a certain type of gene found in both humans and animals which is similar genetically to a virus that causes cancer in animals only, certain species of fish that exist only in the female form and a new biochemical technique which is aiding the identification of links be-

tween species during their evolutionary stages.

Recent tunes

' The Auckland radio orchestra is playing 30 minutes of modern arrangements of popular tunes of the last decade, arranged and conducted by Bart Stokes. Soloists this week are Phil Broadhurst on piano; Kim Paterson on flugel; Chuck Morgan on guitar; Brecon Carter on violin and Bart Stokes on tenor sax. National, 8 p.m.

Listening