• Cause damage to ground support
• Cause damage to rockmass, especially where no ground support (eg sidewalls and floor)
• Could have potentially harmed an employee at the mine (ie occurred in an active access way)
• Actually harmed an employee in the mine

Seismic data relating to the event will become mandatory in time in an effort to lift standards. It�s vital that the following are reported:

Event magnitude

Event location

Damage to support

Damage to rockmass (including depth of damage)

If Fall of Ground (FOG), what is the tonnage?

Installed ground support

bolt type, length, pattern

order of installation & age

technical specification: tonnes, energy, yield, if galvanised

fibrecrete and/or mesh details

Excavation history (size, age)

Blasting history (recent)

Seismic history

Seismic sources/failure modes

Mine depth (deepest active stope)

• Investigation reports (these can be uploaded as they become available)

Background information on how SRS works

Industry now reports all reportable occurrences (as per MSIA 1994 ss. 76, 77 and 78) on SRS. The Seismic/FOG occurrence report form (or wizard) has been live since the end of May 2011.

When selecting (1) fall of ground and/or (2) seismic event for an underground mine�s reportable occurrence, SRS automatically creates the Seismic/FOG occurrence report form. This form must be completed within 10 working days of the date of making the initial occurrence report. If there is an injury associated with the initial occurrence report, an injury occurrence form will also be generated. The Seismic/FOG (OS) and injury (IN) occurrences are children to the parent (OC) initial reported occurrence and remain linked.

The sender of the initial occurrence report (OC) will automatically receive a Request for Information message from SRS which must be forwarded to the person on site responsible for geotechnical engineering. This person must be registered as an SRS user by your company SRS administrator before being able to enter data in the Seismic/FOG occurrence report form.

The initial occurrence report (OC) is to be reported within 24 hours of the event and can be reported by anyone at the site registered on SRS. The Seismic/FOG occurrence report form (OS) is to be completed within 10 working days of the initial occurrence report and should only be completed by a qualified geotechnical and/or mining engineer. Failure to complete the Seismic/FOG occurrence report form (OS) within 10 working days will result in an Alert being sent to your SRS administrator stating that you are in breach of MSIA 1994 ss. 78 & 21 (1) (o). SRS will also automatically alert your District Inspector, who may issue an improvement notice or prohibition notice for the non-compliance.

The following information provides guidance on data required for each step of the Seismic/FOG occurrence report form (OS).

The Seismic/FOG occurrence report form has the flexibility to enable reporting of any of the following combinations for an underground mine:

• Seismic event with no fall of ground (FOG)

• Seismic event with contemporaneous FOG

• Seismic event with rockmass/ ground support damage but no FOG

• FOG only

• Accessible and inaccessible hypocentre/damaged areas

The form is located on the web for downloading prior to undertaking investigations. Over 10 days data can be collected and noted on this form prior to entering the information directly into SRS. It is preferred that internal investigation reports, photos, seismic plots, 3D graphics and other supporting documentation is attached as part of the Seismic/FOG occurrence report form in section 7 �Comments & Actions�.

To create a Seismic Event Occurrence Report Form, complete the following:

1. Reporting Details - display details on company and form completed by.
2. FOG/Damage - Time, Location, Extent and Excavation - Fill this section in if you have had a fall of ground (FOG). This is regardless as to whether there has been an accompanying seismic event. 
3. FOG/Damage - Description - This section is mandatory whether reporting a seismic event, FOG or both.
4. Seismicity and Blasting -  If you are reporting a FOG only, please ignore the seismic reporting details: source mechanism, hypocentre and magnitude. Blasting details are mandatory for all types of occurrences.
5. FOG/Damage Area - Support Damage Rating - This section is compulsory. This Damage Scale has been adopted by the ACG in their Generic Seismic Risk Management Plan for Underground Hardrock Mines (SRMP) and as such has been adopted by the DMP as our standard for occurrence reporting.

   If you have had no damage, click on the S0/SC0 button. Otherwise, refer to the attached support & shotcrete damage scales to determine whether your event is S/SCO1,2,3,4 or 5.

6. FOG/Damaged Area - Installed Ground Support -  For all occurrences (seismic/FOG/both), it is mandatory to provide details on installed ground support in damaged areas. If the seismic event hypocentre is located in an inaccessible area, such as a stope, you can enter �n/a� otherwise you are required to perform a stocktake of all support that has been installed in the area, and list it in this Wizard as it was installed in chronological order.

7. Comments and Actions -  The DMP requires you to perform an investigation and document the details in a report. The seriousness or the occurrence will dictate whether this requires an ICAM or TapRoot investigation. Any action plans arising from the investigation should be attached with the investigation report. Include plans, seismic system 3D hypocentre plots, photos, any witness statements etc.
8. Reviews - identify any errors preventing submission, or warnings.
9. Submit Notification - the completed notification is submitted for processing on clicking the <Submit> button.

• Ensure compulsory fields marked '*' are completed.
• Navigate through the steps using the <Previous> and <Next> buttons or the Wizard steps on the left.

Data entered into SRS via the Seismic/FOG occurrence report form will enable the DMP to work collaboratively with industry to efficiently and proactively address latent and emerging geotechnical risks in WA�s underground mines. The resultant database will enable trend analysis, evidence based risk management and prioritisation of inspectorate activities.

Technical reference list/Suggested reading

Hudyma, M. 2004, �Mining Induced Seismicity In Underground, Mechanised, Hardrock Mines � Results of a Worldwide Survey�, ACG

Mikula, P., Heal, D., Hudyma, M. & Potvin, Y. 2008, �Generic Seismic Risk management Plan for Underground Hardrock Mines�, in ACG Phase 3 Mine Seismicity & Rockburst Risk Management (MSRRM) Project, 2006-2008 Technical Report

Durrheim, R., Goldbach, O., Linzer, L., Spottiswoode, S., Cichowicz, A., Ebrahim-Trollope, R., Essrich, F. & Stankiewicz, T. 2007, �Guidelines, standards and best practice for seismic hazard assessment and rockburst risk management in South African mines�, 4^th International Seminar on Deep and High Stress Mining, November 7-9 2007, Perth Australia, pp. 249-261.

Heal, D., Potvin, Y. & Hudyma, M 2006, �Evaluating Rockburst Damage Potential in Underground Mining�, ARMA/USRMS 2006 Conference, June 19-21 2006, Golden Colorado.

Hudyma, M. & Brummer, R. 2007, �Seismic Monitoring in Mines � Design, Operation, tricks & Traps�, 1^st Canada-US Rock Mechanics Symposium, Vancouver, May 2007.

Hudyma, M. & Heal, D. 2007, �Proactive versus reactive seismic monitoring in mines � Results of a seismic monitoring survey�, 4^th International Seminar on Deep and High Stress Mining, November 7-9 2007, Perth, Australia, pp 207-220.

Hudyma, M., Heal, D. & Mikula, P. 200?, �Seismic Monitoring in Mines � Old Technology � New Applications�

Mercier-Langevin, F & Hudyma, M. 2007, �The development and implementationof a comprehensive seismic risk management plan at Agnico-Eagle�s LaRonde Mine�, 4^th International Seminar on Deep and High Stress Mining, November 7-9 2007, Perth, Australia, pp. 221-232.

Misich, I. & Lang, A., 2001, �Examples of Rockburst Damage in Western Australia� Rockbursts & Seismicity in Mines � RaSiM5, South African Institute of Mining & Metallurgy, pp. 59-68.

Downloads from http://www.ms-rap.com/ACG_Mine_Seismicity_Downloads(viewed September 2009)

Presenters Notes to Presentation �Working Safely in Active Ground Conditions� dated January 2006.

Seismic Hazard Mapping with MS_RAP Version 3, September 2005, by ACG (Mine Seismicity and Rockburst Risk Management Project, Phase II � 2003-2005 Technical Report)

�Mine Seismicity & Rockburst Risk Management 1999-2009� ACG Presentation on MSRRM 10 year Project