14. EARTHQUAKE! Seismometers all over the world measure a violent, magnitude 9.1 earthquake. Using 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