the difference in arrival times between the P-wave and S-wave, US Geological Survey stations in
Denver Colorado, Honolulu Hawaii, and Anchorage Alaska all measure their distance from the
epicenter:
. Denver: 1820 kon
• Hawaii: 3990 kon
Anchorage: 2320 km
Where did the earthquake occur? What type of plate boundary is located here? Are there any post-
earthquake hazards that might affect people living nearby?
(Hint: Find Denver, Colorado in Google Earth. Then, clickon the "Ruler" tool and select "Circle". Now,
draw a circle with a radius of 1,820 kon centered on the city. Repeat for the other two cities.)
Fig: 1