Marsquake! NASA's InSight Lander Feels Its 1st Red Planet Tremor

Space.Com ^ | 23 April 2019 | Meghan Bartels

[amorphous]

Scientists just felt the Red Planet move under their feet — robotically from millions of miles away, on the stark surface of Mars.

On April 6, NASA's InSight lander sensed its first confirmed marsquake, a phenomenon scientists suspected, but couldn't confirm, occurred on the neighboring planet. Measuring the Martian equivalent of earthquakes, seismic waves traveling through the interior of the planet, was among the lander's key science goals.

"We've been waiting months for our first marsquake," Philippe Lognonné, the principal investigator for the seismometer instrument, said in a statement released by the French space agency, which runs the instrument with the national research center. "It's so exciting to finally have proof that Mars is still seismically active."

[Nateman]

Now that it's known Mars has quakes they will need to send a few more craft like this so that the quakes can be triangulated.

[MadMax, the Grinning Reaper]

Mars has gas! Mars has gas! Send TUMS immediately.

[Larry Lucido]

“That’s no planet. It’s a space station!”

[jonascord]

An impact signature, say an incoming asteroid, would be a sudden spike, of maximum magnitude, that tapers off?

[amorphous]

Some info you may find interesting that I only recently read about, myself:

Can seismic activity be studied with a single seismometer?

https://www.seis-insight.eu/en/public-2/martian-science/seismic-activity