The InSight station recorded three powerful Marsquakes. The reasons for one of them are unclear

The InSight spacecraft recorded three strong Marsquakes. Two of them occurred in the summer, the last in September, according to the NASA website.

The seismograph SEIS of the automatic station InSight recorded three new quakes in August and September 2021. Scientists said that they have become one of the most powerful and long-lasting for the entire duration of the device’s operation, and this is more than 1000 sols (Martian days).

NASA has already identified the location where the “summer” Marsquakes took place. It is noted that one of the August aftershocks occurred at a surprisingly large distance from the station. The root cause and localization of the third Marsquake has not yet been clarified.

To date, the InSight station has operated on Mars for 1005 Martian days, 300 sols exceeding the originally planned service life. On September 18, 2021, at its thousandth sol, the radar recorded one of the most powerful and longest marquakes lasting an hour and a half. According to preliminary estimates, its magnitude was 4.2. This is the third major seismic event detected by the station in a month – on August 25, the seismograph recorded two Marsquakes of magnitude 4.2 and 4.1. The source of the September tremors remains to be seen, NASA concluded.

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Alexandr Ivanov earned his Licentiate Engineer in Systems and Computer Engineering from the Free International University of Moldova. Since 2013, Alexandr has been working as a freelance web programmer.
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Alexandr Ivanov

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