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Questions tagged [seismology]

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34 views

Is planetary impact testing planned for the InSight Mars lander's seismometers?

The question How could InSight's seismometers be intentionally and meaningfully “pinged”? is a hypothetical and has several good speculative answers. But here I'd like to ask specifically about any ...
5
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2answers
184 views

Has Mars quaked yet? Any scientific speculation when it might?

We have lots of questions about the Mars lander InSight's seismometers, and I remember reading that they have detected microseisms from wind blowing over InSight's solar panels and the surface of Mars ...
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1answer
148 views

How are the most sensitive seismometers on Mars protected from the most powerful jackhammer on Mars just a few feet away?

In the image below we are supposed to be looking at the pretty clouds, but all I see is an incredibly sensitive set of seismometers sitting right next to a jackhammer that will slowly drive a metal ...
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1answer
48 views

What is VBB recentering (InSight lander's Very Broad Band seismic pendulums)?

From the Planetary Society Blogpost InSight Update, sols 25-42: Seismometer sensors working! Tricky setup and cable management on Mars This is an animated GIF: It's fairly subtle, you may not notice ...
3
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0answers
66 views

What is being shown on these two seismometer images from Insight?

I'd like to preface this question with the fact that I know very little about seismology. On the Insight page with the most recently taken photos, I found two images with data on them, and very little ...
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60 views

What are InSight's barometric and seismic digitization rates and frequency responses when it “listens to the wind”?

News of the "sound of the wind" on Mars is all over the internet today. If you read the fine print, it's really better described as rapid cadence barometric pressure measurements then sped up by a ...
2
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1answer
84 views

Why does the SEIS require a bellows type wind cover?

The Seismic Experiment for Interior Structure probe onboard the Insight lander is meant to measure subtle seismic events on Martian surface. In order to reduce the noise induced by wind, a protective ...
5
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1answer
90 views

How was InSight's vertical seismometer (accelerometer) tested in Earth's stronger gravity?

The BBC article InSight Diary: The silence of space tells an interesting story and has an interesting audio recording of InSight's seismometer signals sped up to audio frequency, made while in ...
6
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1answer
99 views

Spacing for Martian Seismic Network

Assuming 4 stationary probes equipped with seismometers similar to InSight, how far apart should they be placed to optimize studying the deep interior of Mars? Is it necessary for them to be spaced ...
6
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1answer
1k views

Why were the “perfectly functioning” seismometers placed by Apollo 12, 14, 15 and 16 astronauts all shut off in 1977?

The Wikipedia subsection Moonquake says: Information about moonquakes comes from seismometers placed on the Moon by Apollo astronauts from 1969 through 1972. The instruments placed by the Apollo 12,...
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52 views

Seismic effects resulting from tidal action on Ganymede and Europa

What kind of seismic activity is going to be generated by the tidal forces exerted on these two moon's ice sheets by Jupiter? Would it be a great enough differential in the ice sheets to preclude ...