Moonquakes and lunar tectonism

  title={Moonquakes and lunar tectonism},
  author={Gary V. Latham and Maurice Ewing and James Dorman and David R. Lammlein and Frank Press and N afi Toksoz and George H. Sutton and Frederick K. Duennebier and Yosio Nakamura},
  journal={The moon},
AbstractWith the succesful installation of a geophysical station at Hadley Rille, on July 31, 1971, on the Apollo 15 mission, and the continued operation of stations 12 and 14 approximately 1100 km SW, the Apollo program for the first time achieved a network of seismic stations on the lunar surface. A network of at least three stations is essential for the location of natural events on the Moon. Thus, the establishment of this network was one of the most important milestones in the geophysical… 

Lunar seismicity, structure, and tectonics

  • D. Lammlein
  • Geology
    Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences
  • 1977
Interpretation of lunar seismic data results in a lunar model consisting of at least four and possibly five distinguishable zones: (I) the 50-60 km thick crust characterized by seismic velocities

Lunar structure and dynamics - results from the apollo passive seismic experiment

Analysis of seismic signals from man-made impacts, moonquakes, and meteoroid impacts has established the presence of a lunar crust, approximately 60 km thick in the region of the Apollo seismic

Lunar and planetary seismology

The last 4 years have been very significant for new results in lunar seismology and the emergence of a definite program in planetary seismology. Since 1970, four stations with seismic sensors have

Exploring the Moon—The Apollo Investigations

Prior to the first manned landing on the Moon on 20 July 1969, the National Academies of Science, with the support of NASA, established the Lunar Science Institute and a national association of

A Mechanism For the Generation of the Lunar-Mare Basalts

Summary According to the magma ocean, or magmasphere model of lunar formation, rapid accretion would result in the formation of a solid, primitive core of undifferentiated material, surrounded by

Scientific Exploration of the Moon

AbstractThe exploration of the Moon has involved a highly successful interdisciplinary approach to solving a number of scientific problems. It has required the interactions of astronomers to classify



Seismic Data from Man-Made Impacts on the Moon

Seismic data from two lunar impacts suggest that the lunar mare in the region of the Apollo 12 landing site consists of material with very low seismic velocities near the surface, with velocity increasing with depth to 5 to 6 kilometers per second at a depth of 20 kilometers.

The apollo passive seismic experiment.

The completed data set obtained from the 4-station Apollo seismic network includes signals from approximately 11,800 events of various types and the mystery of the much meteoroid flux estimate derived from lunar seismic measurements, as compared with earth-based estimates, remains; although, significant correlations between terrestrial and lunar observations are beginning to emerge.

Passive Seismic Experiment

Seismometer operation for 21 days at Tranquillity Base revealed, among strong signals produced by the Apollo 11 lunar module descent stage, a small proportion of probable natural seismic signals which lack the discrete phases and coherence of earthquake signals.

Earthquake swarms and sea‐floor spreading

More than 20 earthquake swarms that were detected from the mid-Atlantic ridge and from other parts of the mid-ocean ridge system during the past ten years appear to be related to tectonic, magmatic,

An experimental study of thermally induced microfracturing and its relation to volcanic seismicity

In this study, unconfined samples of basalt, sintered and bonded perlite, insulating firebricks, and paraffin were subjected to thermal gradients ranging from 15°C/cm to 100°C/cm. Microshocks

Analysis of a feedback-controlled seismometer

The use of feedback as applied to a long-period seismometer is investigated analytically and experimentally. This technique is advanced as a means of constructing a compact, portable, long-period

The frequency-magnitude relation of microfracturing in rock and its relation to earthquakes

During the deformation of rock in laboratory experiments, small cracking events, i.e., microfractures, occur which radiate elastic waves in a manner similar to earthquakes. These radiations were

Highlights of astronomy

Invited Discourses.- Pulsars and their Genesis.- Dark Matter in the Universe.- Venus.- Joint Discussions.- 1. Reference Frames.- Uses and Required Characteristics of Reference Frames for Galactic