Details

Autor(en) / Beteiligte

• Ceylan, Savas
• Clinton, John F.
• Giardini, Domenico
• Stähler, Simon C.
• Horleston, Anna
• Kawamura, Taichi
• Böse, Maren
• Charalambous, Constantinos
• Dahmen, Nikolaj L.
• van Driel, Martin
• Durán, Cecilia
• Euchner, Fabian
• Khan, Amir
• Kim, Doyeon
• Plasman, Matthieu
• Scholz, John-Robert
• Zenhäusern, Géraldine
• Beucler, Eric
• Garcia, Raphaël F.
• Kedar, Sharon
• Knapmeyer, Martin
• Lognonné, Philippe
• Panning, Mark P.
• Perrin, Clément
• Pike, William T.
• Stott, Alexander E.
• Banerdt, William B.

Titel

The marsquake catalogue from InSight, sols 0–1011

Ist Teil von

• Physics of the earth and planetary interiors, 2022-12, Vol.333, p.106943, Article 106943

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2022

Link zum Volltext

Quelle

Elsevier ScienceDirect Journals Complete

Beschreibungen/Notizen

• The InSight mission (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) has been collecting high-quality seismic data from Mars since February 2019, shortly after its landing. The Marsquake Service (MQS) is the team responsible for the prompt review of all seismic data recorded by the InSight's seismometer (SEIS), marsquake event detection, and curating seismicity catalogues. Until sol 1011 (end of September 2021), MQS have identified 951 marsquakes that we interpret to occur at regional and teleseismic distances, and 1062 very short duration events that are most likely generated by local thermal stresses nearby the SEIS package. Here, we summarize the seismic data collected until sol 1011, version 9 of the InSight seismicity catalogue. We focus on the significant seismicity that occurred after sol 478, the end date of version 3, the last catalogue described in a dedicated paper. In this new period, almost a full Martian year of new data has been collected, allowing us to observe seasonal variations in seismicity that are largely driven by strong changes in atmospheric noise that couples into the seismic signal. Further, the largest, closest and most distant events have been identified, and the number of fully located events has increased from 3 to 7. In addition to the new seismicity, we document improvements in the catalogue that include the adoption of InSight-calibrated Martian models and magnitude scales, the inclusion of additional seismic body-wave phases, and first focal mechanism solutions for three of the regional marsquakes at distances ∼30°. •The V9 catalogue includes 951 events, of which 486 are new since the previous report.•Multiple large marsquakes with MWMa 4.0–4.2 were recorded.•Some new events are within 100 km of the lander and beyond the core shadow which were not seen before.•Four events are located close to the lander, which include chirps and are interpreted as meteorite impacts.•The catalogue also includes 1062 very local events that may be due to thermal stresses.