Link to USGS home page.
Earthquake Hazards Program

Animation of Seismic Waves

Magnitude 7.9 CENTRAL ALASKA

2002 November 03 22:12:41 UTC

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver

Alaska Seismic Waves animation

This animation shows the seismic waves generated by the 2002 Denali Fault earthquake. P-waves are shown in red; S-waves are shown in blue; Surface waves are shown in yellow. Phase arrival times are indicated on the vertical (Z) seismograms displayed at the top of the animation.

Seismograms are shown for:
COLA: College, Alaska
PFO: Pinyon Flat Observatory, California
SSPA: Standing Stone, Pennsylvania
CTAO: Charter Towers, Australia
DBIC: Dimbokro, Cote d'Ivoire
LBTB: Lobatse, Botswana

This animation is running 100 times faster than the waves actually traveled.

Animation of PC program Seismic Waves written by Alan Jones. This program may be downloaded for free. A complete tutorial is available with the download.


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