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Seismic Basics

Beginner

The Seismic Suite Basics level will cover the aspects of the General Analysis application relevant to seismic mines. A general overview of event and volume specific filtering is given, along with plotting moment tensors and filtering events within certain distance of faults (Distance to Surveys).

Videos​

FM chart
0:01:33

How to open the Frequency-Magnitude chart and plot for a specific volume using the event location range filters.

VSA table
0:00:52

There is a summary table to monitor all of your volumes. The VSA table lists all of your volumes and highlights those with elevated recent activity. There are also probabilistic hazard calculations for each volume.

VSA charts
0:01:14

There are a number of charts for Volume Specific Analysis (VSA). This video shows one of the VSA charts for Cumulative Apparent Volume.

Distance to Survey
0:01:40

The distance to surveys feature allows you to filter based on distance to any surface. For example, you may be interested in events only within a certain distance to a fault.

Selections in the Base Filter
0:01:58

How to use selections in the main events filter. You can show only selected in the tool where you have made the selections, but for the selections to affect other tools and calculations, you need to apply it to the base filter.

Pick Views
0:01:22

Picking is how you can find out more information about an event. You can pick in 3D views, charts and table views. This video shows you how to find out the details of an event in the 3D view using picking.

Event Density Isos
0:03:40

The Event Density Isosurfaces window allows users to see isosurfaces of event density, normalised either by space and time or just space.

Event Comments
0:02:45

There are many reasons you might want to store a short snippet of text associated with an event. There are two ways to do this in mXrap; event tags and event comments. Event comments can be unique and about anything, they have no effect on filters.

Event tags
0:07:27

Event tags can be used to group events into categories. Example tags might be 'suspected blast', 'damage occurred', 'suspect location', 'outlier' or 'likely crusher noise'. These tags can be used in event filters to quickly show or hide particular categories.

Moment Tensors in 3D View
0:02:46

All filtering controls can be applied to the moment tensor beach balls in the 3D view as well as some additional controls which are explored. Examples of these are scaling by M-L or decomposition percentage and changing display of individual moment tensor components.

Moment Tensors Window
0:07:20

Explore the Moment Tensor window in the General Analysis Window. This function allows the adjustment of marker styles of lines on the stereo net. A range of stereonet styles are available such as principal axis/principal axis density, Hudson & Diamond plots.

Event Quality Settings
0:03:03

This video shows where the event quality settings are and how to modify them.

Further resources​

Theory​

Seismic App Documentation​

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