jAmaSeis facilitates the study of seismological concepts in middle school through introductory undergraduate classrooms. Users can obtain and display seismic data in real-time from either a local instrument or from remote stations. Users can also filter data, fit a seismogram to travel time curves, triangulate event epicenters on a globe, estimate event magnitudes, and generate images showing seismograms and corresponding calculations. Users accomplish these tasks through an interface designed specifically for educational use.
- Stream View- The helicorder screen now has the flexibility to display up to three streams of data simultaneously. These can include a local educational seismometer, a remote educational seismometer over the jAmaseis network (in true real-time), or research-quality seismometers stored at the IRIS Data Management Center (in near real-time).
- Computing Magnitude- For each stream, an event can be extracted allowing the user to pick amplitudes to calculate either a body wave or surface wave magnitude.
- Computing Distance- For each stream, an event can be extracted allowing the user to pick arrivals by double-clicking on the seismogram. A travel time curve is available to align the picks, and as the seismogram is slid along the travel time curve, the numeric values update and a circle with the appropriate radius is shown on the globe.
- Event View- All of the analysis for an earthquake comes together in the event view. Multiple traces can be loaded, either from the stream view or from a sac file. All of the individual distance calculations are displayed in both table and map form in addition to the individual magnitude calculations. In this view, a user can make the final determination of the location and size of the earthquake.
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