Problem 13
Type 4325 04.18N \(1133137.38 \mathrm{~W}\) in the search bar of Google Earth. Zoom out to an eye elevation of \(\sim 90\) miles. Based on the size of the area which is dark colored and sparsely vegetated, this region is: a. a basaltic dike b. a shield volcano c. a lava dome d. a flood basalt
Problem 17
How tall is Mt. Adams, and what is the length of its base (in the widest, N-S dimension)? You will need to zoom out to an eye altitude of \(\sim 17\) miles to measure the base. a. \(\sim 12,290 \mathrm{ft}\) above sea level, and over 7 miles long b. \(\sim 11,890 \mathrm{ft}\) above sea level, and over 4 miles long c. at least \(12,703 \mathrm{ft}\) above sea level, and over 6 miles long d. unable to determine because of the ice
Problem 19
Type in \(581558.56 \mathrm{~N} 155\) og \(35.98 \mathrm{~W}\) in the search bar of Google Earth. Examine the shape of this feature by zooming in to an eye altitude of \(\sim 3330 \mathrm{ft} ;\) use the eye icon in the upper right corner to rotate the view. Now zoom out to an eye altitude of \(\sim 7306 \mathrm{ft}\) to see the entire structure and the surrounding area. Based on the size and appearance of this volcanic feature, this is a: a. dike b. shield volcano c. lava dome d. flood basalt
Problem 20
Type Mount St. Helens, WA in the search bar in Google Earth and examine the crater at an eye altitude of \(\sim 26,000 \mathrm{ft} .\) Based on the appearance of the crater: a. a lahar removed the north side of the volcano b. a pyroclastic eruption removed the north side of the volcano c. a lava dome grew so large that it is higher than the north side of the crater d. a glacier has eroded the north side of the crater
Problem 21
Type Mount Rainier, WA in the search bar in Google Earth. The Carbon River flows from the north part of Mount Rainier (fed by meltwater from the Carbon Glacier on the flank of the volcano). At an eye altitude of \(\sim 20,000 \mathrm{ft}\), follow the course of the Carbon River, past the town of Carbonado and stop at the town of Orting. Based on the locations of these two towns, which do you think is in danger from a lahar? a. Both are in danger of lahars b. Carbonado, because it is closer to Mount Rainier c. Orting, because it is in a low lying area along Carbon River d. Neither one is in danger because Mount Rainier is dormant
