English
 
Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
 Local TagsRelease HistoryDetailsSummary
  Review of the seismicity on Mars

Giardini, D., Clinton, J., Stahler, S., Ceylan, S., Kim, D., Zenhausern, G., Dahmen, N., Duran, C., Horleston, A., Kawamura, T., Charalambous, C., Knapmeyer, M., Lognonne, P., Panning, M., Banerdt, B. (2023): Review of the seismicity on Mars, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-3734

Item is

 

show all hide all

Basic

show hide
Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020809 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020809_1
Genre: Conference Paper

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Giardini, Domenico1, Author
Clinton, John1, Author
Stahler, Simon1, Author
Ceylan, Savas1, Author
Kim, Doyeon1, Author
Zenhausern, Geraldine1, Author
Dahmen, Nikoloaj1, Author
Duran, Cecelia1, Author
Horleston, Anna1, Author
Kawamura, Taichi1, Author
Charalambous, Constantinos1, Author
Knapmeyer, Martin1, Author
Lognonne, Philippe1, Author
Panning, Mark1, Author
Banerdt, Bruce1, Author
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

Content

show
hide
Free keywords: -
 Abstract: The InSight mission collected an astounding seismic dataset from Mars during more than four years of operation until it was retired in 12/2022. The Marsquake Service detected over 1300 seismic events. The largest marsquake reached magnitude 4.6. Two other significant events are distant impacts, with magnitudes M4.0 and 4.2 and crater diameters of 130 and 150 m respectively. We present the current understanding of the Martian seismicity and the different types of events observed on Mars.Low Frequency (LF) family are the largest events and include energy predominantly below 1 Hz. They are similar to teleseismic events on Earth, with clear P and S waves. The epicenter is known for about half of the LF events, fewer have constrained back-azimuth. Seismicity occurs at only a few spots around Mars - a large number of LF events are located at 26–30° at the volcanic Cerberus Fossae region. Two events lie beyond the core shadow and have PP and SS phases. High-frequency (HF) family exhibit energy predominantly at and above the 2.4 Hz local subsurface resonance. HF events generally have magnitudes below M2.5 and originate from central Cerberus Fossae. Likely these are shallow events associated with volcanic dykes. HF events have inter and intra seasonal trends not yet understood. A small number of HF events have higher frequency content, up to 20–30 Hz with amplification on the horizontal components, and are termed Very High Frequency (VF) events. The closest VF events include a distinctive acoustic signal, and remote imaging confirms they are impacts.

Details

show
hide
Language(s): eng - English
 Dates: 2023-07-112023-07-11
 Publication Status: Finally published
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.57757/IUGG23-3734
 Degree: -

Event

show
hide
Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Place of Event: Berlin
Start-/End Date: 2023-07-11 - 2023-07-20

Legal Case

show

Project information

show

Source 1

show
hide
Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Source Genre: Proceedings
 Creator(s):
Affiliations:
Publ. Info: Potsdam : GFZ German Research Centre for Geosciences
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: -