Alan Kafka
Weston Observatory
Department of Earth and Environmental Sciences
Boston College
On September 19, 2017, the magnitude 7.1 earthquake that occurred in Mexico was recorded by Weston Observatory. Below is the Weston Observatory seismogram of this earthquake.

Seismogram of magnitude 7.1 earthquake in Mexico, recorded on September 19, 2017 at Weston Observatory, Department of Earth and Environmental Sciences, Boston College.
For more information about this earthquake see:
Major Earthquake Hits Central Mexico (CBS)
Additional information about this earthquake can also be found on the U.S. Geological Survey earthquake monitoring website.