Earthquakes do occur on Earth, there have been tremors on the Moon as well.
Chandrayaan-3 has given this information. According to the report, these shocks have occurred due to meteorite or heat-related impact.
ISRO has done a preliminary analysis of the data received from Chandrayaan-3’s earthquake-indicating instrument, in which this information has come to light.
The paper published in the journal Icarus summarizes observations of 190 hours of data recorded by the Lunar Seismic Activity instrument (ILSA).
ILSAs are among the five major scientific instruments carried by Chandrayaan-3’s Vikram lander and Pragyan rover. Researchers said that detailed study is needed to extract more information from the data.
ILSA provided 190 hours of data
The earthquake detector ILSAS was operated continuously till September 2, 2023, after which it was switched off and packed back, ISRO said.
The lander was then moved to a new point about 50 cm away from the starting point. ILSAs operated for about 218 hours on the lunar surface, with 190 hours of data available.
Recognizes over 250 signs
“We identified more than 250 unique signals, about 200 of which were associated with known activities of the rover, either physical movements or the operation of scientific instruments,” the study authors wrote.
The authors considered 50 signals that could not be linked to the lander or rover’s activities as “unrelated events”.
Anomalous signals recorded by Ilsa could be due to micrometeoroid impacts at close range of the instrument, local thermal effects on the soil, or thermal adjustments within the lander subsystems.
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