Name:___________________
Period:___________
Seismic Eruption
Click the WORLD button. Click PAUSE to stop the activity, then click INFORMATION.
1. What activity is happening in the middle of the Atlantic Ocean?
2. Name a location where the Mid-Atlantic Ridge rises above sea level and can be
directly observed.
Click the BACK button to return to the map. Make sure there are check marks in the
Earthquake and Volcano boxes under the information button. Lower the EQ cutoff and
Eruption cutoff to 3 for each. Click REPEAT to restart the activity from the beginning.
Click the STEP buttons to get to a specific date:
3. How strong was the January 13, 1960 earthquake in Chile?
4. Find the day you were born. Was there an event on your birthday?
5. Where was it and what was it?
6. How often do earthquakes occur? (circle one)
almost every day once a week
once a month
rarely
Click BACK, NORTH AMERICA GROUP, PACIFIC NORTHWEST.
7. Starting in March 1980, what was the first clue that Mount St. Helens was waking
up?
8. Why is there very little activity after May 18?
Click BACK, NORTH AMERICA GROUP, UNITED STATES, CALIFORNIA GROUP,
LOMA PRIETA GROUP, LOMA PRIETA.
9. The Loma Prieta Earthquake is called the “World Series Earthquake” because it
struck as the teams were warming up on the ball field. What time did the big one
hit?
10. How much warning did they have (smaller earthquakes preceding the big one)?
Click BACK until you reach the World Menu, then click ASIA GROUP, then
SUMATRA 2004. Click PAUSE.
11. Using the STEP Button, find the largest quake that day. How strong was it?
12. Why was this earthquake singled out to study?
Click BACK, NORTH AMERICA GROUP, UNITED STATES, NORTHEASTERN USA.
13. Does New York get earthquakes?
14. Is there a pattern to earthquakes in NY?