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Layers of the Earth—How were they found? What are they?

by cbegheinin Education, Uncategorizedon Posted on February 12, 2015September 29, 2015

A great short movie made by IRIS on Earth’s layers and how we know about them

Tags

Seismic Tomography

Post author

Written bycbeghein
@begheinseismo
Caroline Beghein

@begheinseismo

A seismology professor posting about work related stuff
  • Snowy peaks near LA
  • Spending Veteran’s day grading a midterm at my local coffee shop.
  • Trying to balance the students stress due to the midterm with some sweets  #ucla @uclaepss
  • New paper alert! Our latest research on the Martian crust was accepted for publication in PEPI (doi: 10.1016/j.pepi.2025.107453). It will be free for everyone to read online within the next few hours. Research done at @uclaepss #mars #marsinsight #martiancrust #seismology #seismicanisotropy #nasa #spaceexploration #ucla
  • Happy to have attended the @uclaepss commencement yesterday and to have seen Dr Erik Weidner graduate! #ucla #uclagraduation #phd #academia
  • On my way to the #UCLA @uclaepss graduation ceremony! My only regret is to have forgotten to iron the hem of my dress before going to the airport…
  • On 16 May, my graduate student Erik Weidner successfully defended his PhD thesis. It was a remote defense so we are extra excited to celebrate in person during the graduation ceremony on campus in a little over a week from now! Congratulations Erik! 🎓
  • When your birthday falls during a committee meeting away from home but you are lucky to work with nice friends who help you celebrate #earthscope #bigbirthday #seismology #geophysics #mallofamerica
  • Lunch time discussions illustrated #earthscope #sagegage2025 #geophysics
  • Flying from BUR instead of the usual LAX gave me different views of the LA landscape this weekend #losangeles #geology #labasin
  • I had a great day at the Caltech Sismo Lab today where I gave a talk about the Mars InSight results that came from my group. It’s always a privilege to be invited there, the place where big names like Charles Richter worked.
  • Spending the day at Caltech to give the seismo lab seminar!
  • San Antonio at night
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Snowy peaks near LA
Snowy peaks near LA
@begheinseismo
@begheinseismo
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Snowy peaks near LA
2 days ago
View on Instagram |
1/14
Spending Veteran’s day grading a midterm at my local coffee shop.
@begheinseismo
@begheinseismo
•
Follow
Spending Veteran’s day grading a midterm at my local coffee shop.
4 weeks ago
View on Instagram |
2/14
Trying to balance the students stress due to the midterm with some sweets  #ucla @uclaepss
Trying to balance the students stress due to the midterm with some sweets  #ucla @uclaepss
Trying to balance the students stress due to the midterm with some sweets  #ucla @uclaepss
@begheinseismo
@begheinseismo
•
Follow
Trying to balance the students stress due to the midterm with some sweets #ucla @uclaepss
4 weeks ago
View on Instagram |
3/14
@begheinseismo
@begheinseismo
•
Follow
1 month ago
View on Instagram |
4/14
New paper alert! Our latest research on the Martian crust was accepted for publication in PEPI (doi: 10.1016/j.pepi.2025.107453). It will be free for everyone to read online within the next few hours. Research done at @uclaepss #mars #marsinsight #martiancrust #seismology #seismicanisotropy #nasa #spaceexploration #ucla
@begheinseismo
@begheinseismo
•
Follow
New paper alert! Our latest research on the Martian crust was accepted for publication in PEPI (doi: 10.1016/j.pepi.2025.107453). It will be free for everyone to read online within the next few hours. Research done at @uclaepss #mars #marsinsight #martiancrust #seismology #seismicanisotropy #nasa #spaceexploration #ucla
2 months ago
View on Instagram |
5/14
Happy to have attended the @uclaepss commencement yesterday and to have seen Dr Erik Weidner graduate! #ucla #uclagraduation #phd #academia
Happy to have attended the @uclaepss commencement yesterday and to have seen Dr Erik Weidner graduate! #ucla #uclagraduation #phd #academia
Happy to have attended the @uclaepss commencement yesterday and to have seen Dr Erik Weidner graduate! #ucla #uclagraduation #phd #academia
Happy to have attended the @uclaepss commencement yesterday and to have seen Dr Erik Weidner graduate! #ucla #uclagraduation #phd #academia
Happy to have attended the @uclaepss commencement yesterday and to have seen Dr Erik Weidner graduate! #ucla #uclagraduation #phd #academia
Happy to have attended the @uclaepss commencement yesterday and to have seen Dr Erik Weidner graduate! #ucla #uclagraduation #phd #academia
Happy to have attended the @uclaepss commencement yesterday and to have seen Dr Erik Weidner graduate! #ucla #uclagraduation #phd #academia
Happy to have attended the @uclaepss commencement yesterday and to have seen Dr Erik Weidner graduate! #ucla #uclagraduation #phd #academia
Happy to have attended the @uclaepss commencement yesterday and to have seen Dr Erik Weidner graduate! #ucla #uclagraduation #phd #academia
Happy to have attended the @uclaepss commencement yesterday and to have seen Dr Erik Weidner graduate! #ucla #uclagraduation #phd #academia
@begheinseismo
@begheinseismo
•
Follow
Happy to have attended the @uclaepss commencement yesterday and to have seen Dr Erik Weidner graduate! #ucla #uclagraduation #phd #academia
6 months ago
View on Instagram |
6/14
On my way to the #UCLA @uclaepss graduation ceremony! My only regret is to have forgotten to iron the hem of my dress before going to the airport…
@begheinseismo
@begheinseismo
•
Follow
On my way to the #UCLA @uclaepss graduation ceremony! My only regret is to have forgotten to iron the hem of my dress before going to the airport…
6 months ago
View on Instagram |
7/14
On 16 May, my graduate student Erik Weidner successfully defended his PhD thesis. It was a remote defense so we are extra excited to celebrate in person during the graduation ceremony on campus in a little over a week from now! Congratulations Erik! 🎓
@begheinseismo
@begheinseismo
•
Follow
On 16 May, my graduate student Erik Weidner successfully defended his PhD thesis. It was a remote defense so we are extra excited to celebrate in person during the graduation ceremony on campus in a little over a week from now! Congratulations Erik! 🎓
6 months ago
View on Instagram |
8/14
When your birthday falls during a committee meeting away from home but you are lucky to work with nice friends who help you celebrate #earthscope #bigbirthday #seismology #geophysics #mallofamerica
When your birthday falls during a committee meeting away from home but you are lucky to work with nice friends who help you celebrate #earthscope #bigbirthday #seismology #geophysics #mallofamerica
When your birthday falls during a committee meeting away from home but you are lucky to work with nice friends who help you celebrate #earthscope #bigbirthday #seismology #geophysics #mallofamerica
@begheinseismo
@begheinseismo
•
Follow
When your birthday falls during a committee meeting away from home but you are lucky to work with nice friends who help you celebrate #earthscope #bigbirthday #seismology #geophysics #mallofamerica
6 months ago
View on Instagram |
9/14
Lunch time discussions illustrated #earthscope #sagegage2025 #geophysics
@begheinseismo
@begheinseismo
•
Follow
Lunch time discussions illustrated #earthscope #sagegage2025 #geophysics
7 months ago
View on Instagram |
10/14
Flying from BUR instead of the usual LAX gave me different views of the LA landscape this weekend #losangeles #geology #labasin
Flying from BUR instead of the usual LAX gave me different views of the LA landscape this weekend #losangeles #geology #labasin
Flying from BUR instead of the usual LAX gave me different views of the LA landscape this weekend #losangeles #geology #labasin
Flying from BUR instead of the usual LAX gave me different views of the LA landscape this weekend #losangeles #geology #labasin
Flying from BUR instead of the usual LAX gave me different views of the LA landscape this weekend #losangeles #geology #labasin
Flying from BUR instead of the usual LAX gave me different views of the LA landscape this weekend #losangeles #geology #labasin
Flying from BUR instead of the usual LAX gave me different views of the LA landscape this weekend #losangeles #geology #labasin
Flying from BUR instead of the usual LAX gave me different views of the LA landscape this weekend #losangeles #geology #labasin
Flying from BUR instead of the usual LAX gave me different views of the LA landscape this weekend #losangeles #geology #labasin
Flying from BUR instead of the usual LAX gave me different views of the LA landscape this weekend #losangeles #geology #labasin
Flying from BUR instead of the usual LAX gave me different views of the LA landscape this weekend #losangeles #geology #labasin
Flying from BUR instead of the usual LAX gave me different views of the LA landscape this weekend #losangeles #geology #labasin
@begheinseismo
@begheinseismo
•
Follow
Flying from BUR instead of the usual LAX gave me different views of the LA landscape this weekend #losangeles #geology #labasin
8 months ago
View on Instagram |
11/14
I had a great day at the Caltech Sismo Lab today where I gave a talk about the Mars InSight results that came from my group. It’s always a privilege to be invited there, the place where big names like Charles Richter worked.
I had a great day at the Caltech Sismo Lab today where I gave a talk about the Mars InSight results that came from my group. It’s always a privilege to be invited there, the place where big names like Charles Richter worked.
I had a great day at the Caltech Sismo Lab today where I gave a talk about the Mars InSight results that came from my group. It’s always a privilege to be invited there, the place where big names like Charles Richter worked.
I had a great day at the Caltech Sismo Lab today where I gave a talk about the Mars InSight results that came from my group. It’s always a privilege to be invited there, the place where big names like Charles Richter worked.
I had a great day at the Caltech Sismo Lab today where I gave a talk about the Mars InSight results that came from my group. It’s always a privilege to be invited there, the place where big names like Charles Richter worked.
I had a great day at the Caltech Sismo Lab today where I gave a talk about the Mars InSight results that came from my group. It’s always a privilege to be invited there, the place where big names like Charles Richter worked.
I had a great day at the Caltech Sismo Lab today where I gave a talk about the Mars InSight results that came from my group. It’s always a privilege to be invited there, the place where big names like Charles Richter worked.
I had a great day at the Caltech Sismo Lab today where I gave a talk about the Mars InSight results that came from my group. It’s always a privilege to be invited there, the place where big names like Charles Richter worked.
I had a great day at the Caltech Sismo Lab today where I gave a talk about the Mars InSight results that came from my group. It’s always a privilege to be invited there, the place where big names like Charles Richter worked.
I had a great day at the Caltech Sismo Lab today where I gave a talk about the Mars InSight results that came from my group. It’s always a privilege to be invited there, the place where big names like Charles Richter worked.
@begheinseismo
@begheinseismo
•
Follow
I had a great day at the Caltech Sismo Lab today where I gave a talk about the Mars InSight results that came from my group. It’s always a privilege to be invited there, the place where big names like Charles Richter worked.
8 months ago
View on Instagram |
12/14
Spending the day at Caltech to give the seismo lab seminar!
@begheinseismo
@begheinseismo
•
Follow
Spending the day at Caltech to give the seismo lab seminar!
8 months ago
View on Instagram |
13/14
San Antonio at night
San Antonio at night
@begheinseismo
@begheinseismo
•
Follow
San Antonio at night
9 months ago
View on Instagram |
14/14
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