moonquakes

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moonquakes

Localized disturbances inside the Moon, detected by the Apollo seismic network. Rare but strong moonquakes occur 50–300 km below the surface, although they are much less intense than earthquakes by a factor of about 1000. Weaker but more numerous moonquakes occur at depths of 800–1000 km and are triggered at perigee by lunar tides. Seismic signals on the Moon are extended by scattering in the dry and porous lunar crust. Deep moonquakes provide information, through their arrival times, of the structure of the lunar interior: a 60 km crust on average, a mantle extending to a depth of 1100 km or more, and a central partly molten core roughly 500–600 km in radius.
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Weathering from solar and space radiation gradually darkens material on the lunar surface, so brighter areas indicate regions that are freshly exposed to space, as expected if a recent moonquake sent material sliding down a cliff.
Some shallow moonquakes recorded during the Apollo programme were likely caused by tectonic activity, according to a paper published recently in Nature Geoscience.
Since LRO has been photographing the lunar surface since 2009, the team would like to compare pictures of specific fault regions from different times to see if there is any evidence of recent moonquake activity.
MoonQuake is an elite design, programming, and marketing company that is operating under Moon Quake Inc.
Re Barolo has finished behind Kingdom Of Fife and Godolphin's Moonquake on his last two starts but his trainer Marco Botti is still hopeful of a good run.
NEWCASTLE: 6.50 Hill Cross, 7.20 Cape Cobra, 7.50 Moonquake, 8.20 Nesno, 8.50 Skit, 9.20 Second Opinion.
All of his best form on the Flat came on good or better - with his best effort coming on good to firm when second behind Moonquake at York in July - and he disappointed on his only start with ease in the ground, coming home well beaten at Ascot in October.
Hill: 6 Kingdom of Fife, Riggins, 8 Aqwaal, Desert Creek, Moonquake, 12 Alazeyab, Albaqaa, Sirvino, 14 Ben Chorley, Bullet Man, Nanton, Sweet Lightning, 16 bar.
Coral make the Queen's Kingdom Of Fife the 11-2 favourite for the race with Riggins next in the betting at 7-1, ahead of Moonquake at 8-1.
An hour and a half after the first moon step, Armstrong and Aldrin set up the two scientific experiments they will leave behind: a laser reflector and a moonquake detector.
She has not raced since finishing fifth behind Moonquake at York's Dante meeting.
Ryan Moore's mount joined Frankie Dettori and Moonquake at the furlong pole and was always holding the upper hand for a neck call.