Your Objective

Use earthquake data from Axial Seamount in April 2015 to determine when the diking-eruptive event occurred.

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Data Tips

When the site loads, you are able to see all of the earthquake data from 6 hours on April 23, 2015 (00:00-06:00 UTC). You can interact with the data by:

Note, the color denotes earthquake depth, with darker blues representing deeper depths (up to 5km) and dark red representing shallower depths (0km). The yellows are in-between. The circles on the map are sized by the earthquake magnitude.

Questions for Thought

Orientation Questions
  • Across what geographic area are you able to observe earthquake data in this map?
  • What is the range of earthquake magnitudes in these data?
  • When do you see the largest earthquakes along this time series across the diking-eruptive event?
Interpretation Questions
  • During what time frame did the diking-eruptive event occur?
  • What evidence do you have of a relationship between earthquake magnitude and timing during the diking-eruptive event at the Axial Seamount?
  • How does this relationship support what you previously knew about seismic activity at seamounts?
  • What questions do you still have about seismic activity at seamounts during eruption events?

Background Information

Click on the images below to learn more about where and how the dataset above was collected.

Dataset Information