Wednesday, March 21, 2012

Mexico earthquake recorded on AZ broadband seismic network

AZGS seismologist Lisa Linville in our Flagstaff office compiled this display of the seismic waveforms rolling across Arizona from yesterday's M=7.4 earthquake in the state of Oaxaca, Mexico, as recorded on the stations of the Arizona Broadband Seismic Network, which is managed by AZGS.

The initial pulses are the P waves, followed by often higher amplitude S or surface waves.

We plan on posting a higher-resolution version of this on the AZGS website.


  1. Anonymous9:17 AM

    Any seismic waveforms or other activity noted in AZ from the 7.1 in Maule, Chili on March 25, 2012?

  2. We did detect the Chile event and the info was automatically forwarded to the Data Management Center in Vancouver WA. Our current viewer for the ABSN doesn't meet our needs and we are looking for something that provides greater visualization capabilities.