Mexico City earthquakes vs land subsidence

1 Content:

- Retrieval Earthquakes data 
- Mexico City Earthquakes distribution map (all values) 
- Mexico City Earthquakes distribution map (magnitude < 3) 
- CDMX: NASA satellite image (Date: April 29, 2026)
- Final comment 

2 National Seismological Service

The data on seismic events were obtained from the website of the national seismological service

- source: http://www2.ssn.unam.mx:8080/catalogo/

Rows: 406,719
Columns: 14
$ ne        <int> 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 1…
$ date      <date> 1900-01-20, 1900-05-16, 1901-03-05, 1901-12…
$ hours     <time> 00:33:30, 14:12:00, 04:45:00, 20:17:00, 17:…
$ year      <dbl> 1900, 1900, 1901, 1901, 1902, 1902, 1902, 19…
$ month     <fct> January, May, March, December, January, Apri…
$ dayMonth  <chr> "20-01", "16-05", "05-03", "08-12", "16-01",…
$ month_n   <int> 1, 5, 3, 12, 1, 4, 9, 12, 1, 10, 12, 4, 4, 1…
$ days      <dbl> 20, 16, 5, 8, 16, 18, 23, 12, 13, 24, 16, 10…
$ latitude  <dbl> 20.00, 20.00, 25.00, 26.00, 17.62, 14.90, 16…
$ longitude <dbl> -105.00, -105.00, -110.00, -110.00, -99.72, …
$ depth     <dbl> 33, 33, 33, 33, 33, 25, 25, 33, 33, 33, 33, …
$ magnitude <dbl> 7.4, 6.9, 6.9, 7.0, 7.0, 7.5, 7.7, 7.1, 7.6,…
$ location  <chr> "71 km al NOROESTE de AUTLAN DE NAVARRO", "7…
$ state     <chr> "JAL", "JAL", "BCS", "SIN", "GRO", "CHIS", "…

3 Mexico City Earthquakes map (all events)

- Mexico City earthquakes map: 1912 - 2026
- The scale colour is magnitude (all events)

4 Mexico City Earthquakes map (magnitude < 3)

- Mexico City earthquakes map (1912 - 2026) 
- The scale colour is magnitude events less than 3 degrees 

5 CDMX: NASA satellite image

- Date: April 29, 2026 

- source: 

https://www.jpl.nasa.gov/news/us-indian-space-mission-maps-extreme-subsidence-in-mexico-city/?utm_source=TWITTER&utm_medium=NASAJPL&utm_campaign=NASASocial&linkId=934585730

• Date: April 29, 2026

“New data from NISAR shows where Mexico City and its environs subsided by up to a few centimeters per month (shown in blue) between Oct. 25, 2025, and Jan. 17, 2026. Uneven and seemingly small elevation changes have added up over the decades, fracturing roads, buildings, and water lines. Credit: NASA/JPL-Caltech/David Bekaert”

6 Final comment

Mexico City earthquakes vs land subsidence: both seismic events and the satellite image are at different scales; however, it appears that the areas of greater subsidence (blue in the satellite image) could be associated with “a higher occurrence of earthquakes”.