Shallow seismic activity and young thrust faults on the Moon

  title={Shallow seismic activity and young thrust faults on the Moon},
  author={T. Watters and R. Weber and G. Collins and I. Howley and N. Schmerr and Catherine L. Johnson},
  journal={Nature Geoscience},
The discovery of young thrust faults on the Moon is evidence of recent tectonic activity, but how recent is unknown. Seismometers at four Apollo landing sites recorded 28 shallow moonquakes between 1969 and 1977. Some of these shallow quakes could be associated with activity on the young faults. However, the epicentre locations of these quakes are poorly constrained. Here we present more-accurate estimates of the epicentre locations, based on an algorithm for sparse seismic networks. We found… Expand

Figures from this paper

Impacts drive lunar rockfalls over billions of years
A global map of rockfalls on the lunar surface is presented and impact events as short- and long-term driver for rockfall events are determined, showing that mass wasting is primarily driven by impacts and impact-induced fracture networks. Expand
Seismicity on tidally active solid-surface worlds
A model to describe the tidally-driven seismic activity on planetary bodies based on tidal dissipation is formalized and it is found that many moons in the Solar System and many exoplanets should exhibit more seismic activity than the Earth. Expand
Global tectonic patterns of the Moon
Abstract Planetary tectonics provide a record of the myriad of processes that shape planetary surfaces and interiors. While there is a long history of mapping and modeling planetary tectonics,Expand
Preliminary approach to assess the seismic hazard on the Moon
The interest and desire of humanity to build extraterrestrial habitats brings with it great scientific and engineering challenges. To guarantee the safety and resilience of these habitats, it isExpand
Forecasting Rates of Volcanic Activity on Terrestrial Exoplanets and Implications for Cryovolcanic Activity on Extrasolar Ocean Worlds
Like the planets and moons in our solar system, the surfaces of terrestrial exoplanets may be shaped by volcanic activity. The magnitudes and rates of volcanic activity on terrestrial exoplanets willExpand
The origin of neotectonics on the lunar nearside
New observations of wrinkle ridges on the nearside maria of the Moon display signs of ongoing ridge modification. In association with the wrinkle ridges, we observed an absence of superposed craters,Expand
The Lunar Geophysical Network Landing Sites Science Rationale
The Lunar Geophysical Network (LGN) mission is proposed to land on the Moon in 2030 and deploy packages at four locations to enable geophysical measurements for 6-10 years. Returning to the lunarExpand
A case for limited global contraction of Mercury
  • T. Watters
  • Medicine
  • Communications Earth & Environment
  • 2021
Planet Mercury’s radius probably reduced by no more than 2 km since the Late Heavy Bombardment, with a strong hemispheric dichotomy in contractional strain, suggesting the loss of interior heat over time is less than expected for a small rocky body. Expand
Constraining the Evolutionary History of the Moon and the Inner Solar System : A Case for New Returned Lunar Samples
The Moon is the only planetary body other than the Earth for which samples have been collected in situ by humans and robotic missions and returned to Earth. Scientific investigations of the firstExpand
Small craters population as a useful geological investigative tool: Apollo 17 region as a case study
Abstract Small craters below a few decametres in diameter are ubiquitous on the lunar surface and numbered in billions. Thanks to the expanding availability of global high-resolution imagery, theirExpand


Global thrust faulting on the Moon and the influence of tidal stresses
Lunar Reconnaissance Orbiter Camera images reveal a vast, globally distributed network of over 3200 lobate thrust fault scarps, making them the most common tectonic landform on the Moon. Based onExpand
Seismic scattering and shallow structure of the moon in oceanus procellarum
Long, reverberating trains of seismic waves produced by impacts and moonquakes may be interpreted in terms of scattering in a surface layer overlying a non-scattering elastic medium. Model seismicExpand
A new seismic model of the Moon: implications for structure, thermal evolution and formation of the Moon
Abstract The seismic determinations of the crustal thickness and mantle velocities are key parameters for most geophysical and geochemical lunar studies. We determine a new seismic model of the MoonExpand
Shallow moonquakes: depth, distribution and implications as to the present state of the lunar interior.
The observed seismic amplitudes of HFT (high-frequency teleseismic) events do not vary with distance as expected for surface sources, but are consistent with sources in the upper mantle of the moon.Expand
Thrust faults and the near‐surface strength of asteroid 433 Eros
[1] NEAR Shoemaker images reveal widespread occurrence of tectonic landforms on asteroid 433 Eros. Hinks Dorsum is a ridge that extends for about 18 km around the asteroid and strongly resemblesExpand
Unusually high stress drops associated with shallow moonquakes
New estimates of stress drops and energy release associated with shallow moonquakes, believed to represent the only lunar seismic events of tectonic origin, have been made, taking into account (1)Expand
Stress triggering in thrust and subduction earthquakes and stress interaction between the southern San Andreas and nearby thrust and strike-slip faults
[1] We argue that key features of thrust earthquake triggering, inhibition, and clustering can be explained by Coulomb stress changes, which we illustrate by a suite of representative models and byExpand
Post-imbrian global lunar tectonism: Evidence for an initially totally molten Moon
Evaluation of all reasonable sources of stress in the lunar crust indicates that compressional thermoelastic stresses are the only ones which have been tectonically significant on the global scaleExpand
Tectonic patterns on a reoriented planet: Mars
Abstract Both geologic and free-air-gravity data suggest that the positive mass anomaly associated with the Tharsis volcanoes may have reoriented Mars' lithosphere by as much as 25°. Since Mars isExpand
Recent shallow moonquake and impact-triggered boulder falls on the Moon: New insights from the Schrödinger basin
Shallow moonquakes are thought to be of tectonic origin. However, the geologic structures responsible for these moonquakes are unknown. Here we report sites where moonquakes possibly occurred alongExpand