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.
at 10:04 AM