Alan Kafka
Weston Observatory
Department of Earth and Environmental Sciences
Boston College

On November 30, 2018, the magnitude 7.0 earthquake that occurred in Alaska was recorded by Weston Observatory. Below is the Weston Observatory “Seismic Pier” and seismograms of this earthquake recorded by four different types of seismographs. Each different type of seismograph records different aspects of the earthquake that seismologists study.

For more information about this earthquake see:

Anchorage Earthquake Left Crumbling Buildings, Collapsed Roofs and Damaged Roads (CNN)

Additional information about this earthquake can also be found on the U.S. Geological Survey earthquake monitoring website.