Moon Lander Records "Event, Appears Natural, Under Investigation": ISRO

The Instrument for Lunar Seismic Activity's (ILSA) primary objective is to measure ground vibrations generated by natural quakes, impacts, and artificial events.

The Instrument of Lunar Seismic Activity payload on Chandrayaan-3's Lander Vikram recorded a natural event that occurred on the Moon's surface on August 26, the source of which is still under investigation, the space agency said. Chandrayaan-3 Mission:In-situ Scientific ExperimentsInstrument for the Lunar Seismic Activity (ILSA) payload on Chandrayaan 3 Lander-- the first Micro Electro Mechanical Systems (MEMS) technology-based instrument on the moon --has recorded the movements of Rover and other… pic.twitter.com/Sjd5K14hPl

The Instrument for Lunar Seismic Activity's (ILSA) primary objective is to measure ground vibrations generated by natural quakes, impacts, and artificial events. 

The ILSA also recorded vibrations of the rover's movement on the Moon's surface on August 25. The space agency shared an acceleration-time graph that recorded the ILSA's response to the rover's movement.