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Updates to large event analysis

The Large Event Analysis app has receieved a number of upgrades recently. These upgrades focus on analysing seismicity in the immediate time before/after a large event. A new window, called 'plane based analysis', allows the user to investigate the source parameters around the location of an event before/after it occurred.

Updates to Hazard Assessment app

Stuart Tierney
PhD Student and Research Assistant

A few new features have been added to the Hazard Assessment application, aiming to improve usability, understanding and investigation. The first addition is a chart in the hazard setup window to indicate the current date range settings. Usually the date range for calculating b-value will be a lot longer than for calculating event rate. Hopefully the chart will be a handy visual aid to help you keep your bearings when setting the hazard analysis periods.

CheX

CheX is mXrap's new system for setup and support. It is a checklist-based website which helps users to follow step-by-step instructions to complete tasks such as setting up a root folder, applying a patch and doing a default backup.

Moment tensors - a practical guide

Stuart Tierney
PhD Student and Research Assistant

Moment tensor analysis is a topic that carries a decent level of uncertainty and confusion for many people. So I'm going to lay it out as simply as I can. For this post, I'm not going to go into too many details on how moment tensors are actually calculated. But, I'm going to summarise the things I think are most important for geotechnical engineers to know for interpreting moment tensor results.

Moment tensors in General Analysis app

Stuart Tierney
PhD Student and Research Assistant

Moment tensors have been added to the General Analysis application in the recent update. Beach balls and principal axes can be viewed in the General Analysis 3D view. There is also a separate Moment Tensor window with a number of stereonets and mechanism charts. Two new training videos have been uploaded to the General Analysis (3D View) page that walkthrough the new tools.