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Vibration Monitoring of Quarry Blasting

Monitoring Vibrations from Quarry Operations

Malta has a number of quarry operators that are engaged in the extraction of hardstone through blasting operations. The Malta Environment and Planning Authority oversees the implementation of regulations and legal obligations related to quarry operations in terms of monitoring of vibration levels from blasting operations.

Given the environmental concerns associated with these vibrations, the Authority has issued terms of reference (TORs) and a guidance document on vibration monitoring of quarry blasting. The purpose of these guidelines is to improve environmental performance by providing quarry operators with details as to how and what is required in order to monitor vibrations from blasting operations. Maximum vibration levels that shall be considered acceptable are also being specified.

Apart from providing details on the parameters that need to be monitored, these guidelines clarify responsibilities of the operators,  stipulate threshold levels for vibration monitoring and determine other specifications related to location, design and sensitivity of the monitoring equipment. In addition, the TORs also provide guidance on the documentation that needs to be submitted to the Authority prior to the commencement, and upon completion of the blasting operations.


The TORs and related guidance document are available on the following links: 

Terms of reference - Quarry Blasting and Vibration Monitoring

Guidance on Vibration Monitoring and Blasting in Quarries



Monitoring Reports for Quarry Blasting

The information provided in these reports is based on currently available data and approved methodologies, which MEPA is still in the process of reviewing.

When interpreting or correlating data in these vibration reports or between vibration reports from different quarries, various factors are to be taken into account. These include Peak Particle Velocity (mm/s), distance from seismograph (m) and the frequency (Hz) at which the readings are taken. Data collected from a monitoring point cannot be compared with a published standard unless all parameters are factored into the interpretation of the results.



 Quarry                                                    

 Blast Monitoring Reports

 HM01 - Ta' Zuta, Siggiewi

 10/11/2010

 16/01/2011    14/03/2011    05/04/2011

 HM04 - Tal-Faqqanija, Ta' Zuta, Siggiewi

 13/09/2010    18/11/2010    23/11/2010

 06/01/2011    10/03/2011    18/07/2011

 HM08 - Wied iz-Ziju, Zejtun

 12/01/2011    14/02/2011    14/03/2011
 06/04/2011    09/05/2011    25/10/2011
 24/11/2011                    

 27/01/2012    16/05/2012    29/08/2012
 03/06/2013    12/11/2013
 29/01/2014    13/05/2014

 HM09C - Ix-Xaghra Ta' Qaduma, Mosta

 04/08/2010    24/09/2010    02/11/2010
 14/12/2010

 24/01/2011    09/02/2011    08/03/2011
 13/04/2011    09/05/2011    18/07/2011
 22/09/2011    10/10/2011    07/11/2011
 09/12/2011

 11/01/2012    26/01/2012    14/02/2012
 01/03/2012    21/03/2012    12/04/2012
 10/05/2012    22/05/2012    31/08/2012
 09/10/2012    13/11/2012    28/11/2012
 10/12/2012
 08/01/2013    16/01/2013    24/01/2013
 12/02/2013    18/03/2013    28/02/2013
 26/03/2013    10/05/2013    31/05/2013
 11/07/2013    21/08/2013    11/09/2013
 23/09/2013    07/10/2013    23/10/2013
 12/11/2013    25/11/2013    03/12/2013
 19/12/2013   
 15/01/2014    24/01/2014    05/02/2014
 18/02/2014    25/02/2014    27/03/2014
 23/04/2014    04/06/2014    27/08/2014     
 HM13A - Tat-Tomna, Mellieha

 14/09/2010    06/10/2010

 14/01/2011    18/03/2011    07/04/2011
 06/05/2011    16/06/2011    15/07/2011
 19/09/2011

 17/01/2012    23/03/2012    08/06/2012
 17/10/2012
 11/01/2013    18/04/2013    06/09/2013
 19/11/2013
 21/01/2014    06/03/2014    24/03/2014
 10/06/2014    07/08/2014
 HM22 - Victoria Lines, Naxxar

 22/07/2010    30/07/2010    22/09/2010
 10/11/2010    17/11/2010    26/11/2010
 29/11/2010    06/12/2010    20/12/2010

 03/01/2011    10/01/2011    17/01/2011  
 25/01/2011    02/02/2011    08/02/2011    
 16/02/2011    24/02/2011    02/03/2011    
 15/03/2011    24/03/2011    04/04/2011    
 08/04/2011    18/04/2011    03/05/2011  
 10/05/2011    14/06/2011    30/06/2011   
 26/07/2011    27/09/2011    05/10/2011   
 13/10/2011    01/11/2011    08/11/2011               
 15/11/2011    06/12/2011    19/12/2011                

 02/01/2012    08/01/2012    18/01/2012
 07/02/2012    15/02/2012    29/02/2012
 12/03/2012    20/03/2012    30/03/2012
 09/04/2012    17/04/2012    03/05/2012
 21/05/2012    25/05/2012    31/05/2012
 06/06/2012    15/06/2012    06/07/2012
 16/07/2012    24/07/2012    09/08/2012
 27/08/2012    10/09/2012    18/09/2012
 26/09/2012    15/10/2012    22/10/2012
 07/11/2012    14/11/2012    19/11/2012
 26/11/2012    03/12/2012    17/12/2012

 02/01/2013    09/01/2013    21/01/2013
 04/02/2013    14/02/2013    27/02/2013
 05/03/2013    18/03/2013    26/03/2013
 04/04/2013    16/04/2013    08/05/2013
 15/05/2013    28/05/2013    05/06/2013
 17/06/2013    04/07/2013    16/07/2013
 26/07/2013    08/08/2013    26/08/2013
 05/09/2013    16/09/2013    24/09/2013
 10/10/2013    18/10/2013    07/11/2013
 18/11/2013    02/12/2013    17/12/2013
 10/12/2013

 07/01/2014    16/01/2014    23/01/2014
 03/02/2014    11/02/2014    18/02/2014
 25/02/2014    10/03/2014    20/03/2014
 01/04/2014    22/04/2014    05/05/2014 
 20/05/2014    29/05/2014    05/06/2014
 13/06/2014    24/06/2014    03/07/2014   
 24/07/2014    06/08/2014    20/08/2014
 10/09/2014    22/09/2014    07/10/2014    
 16/10/2014    27/10/2014    03/11/2014   
 12/11/2014    18/11/2014    26/11/2014   
 09/12/2014

 HM26 - Tal-Macina, Nigret, Zurrieq

 02/08/2010    23/09/2010    08/11/2010

 11/01/2011    22/03/2011    11/05/2011
 13/07/2011    01/08/2011    20/09/2011   
 21/10/2011    22/11/2011    14/12/2011   

 22/03/2012    02/05/2012    14/06/2012
 18/07/2012    08/08/2012    10/10/2012
 26/10/2012    30/11/2012
 07/01/2013    06/02/2013    17/04/2013
 14/05/2013    18/06/2013    24/07/2013
 09/08/2013    03/09/2013    27/09/2013
 21/10/2013    26/11/2013  
 17/01/2014    17/02/2014    12/03/2014
 14/04/2014    27/05/2014    09/05/2014
 04/06/2014    25/06/2014    16/07/2014
 04/08/2014    29/08/2014

 HM29 - Ta' Torri Falka, Mgarr

 23/07/2010    04/08/2010

 21/02/2011    17/03/2011    07/04/2011
 26/04/2011

 15/02/2012    12/03/2012    12/04/2012
 26/04/2012    09/05/2012    06/06/2012

 HM31 - Ta' Dmejrek, Dingli

 20/09/2010

 HM33 - Ta' Bellula, Siggiewi

 19/07/2010    05/08/2010    09/09/2010
 12/10/2010    27/10/2010    26/11/2010

 12/01/2011    22/02/2011    29/04/2011
 31/05/2011    06/07/2011    29/07/2011
 16/09/2011    04/10/2011    24/10/2011
 21/11/2011
 17/02/2012    04/05/2012    23/05/2012
 12/06/2012    28/06/2012    20/07/2012
 10/08/2012    12/09/2012    18/10/2012
 12/11/2012    04/12/2012
 11/02/2013    03/04/2013    25/03/2013
 05/04/2013    22/04/2013    13/05/2013
 10/06/2013    08/07/2013    31/07/2013
 15/10/2013    31/10/2013

 HG10 - Ta' Ghar id-Dar, Qala, Gozo

 13/02/2014    14/03/2014    25/03/2014
 12/05/2014    05/08/2014   

 HG12 - Ta' Klement, Qala Gozo 

 03/08/2010    07/10/2010    12/11/2010

 13/01/2011    11/03/2011    25/05/2011  
 30/09/2011    01/12/2011

 12/01/2012    03/04/2012    18/06/2012
 12/10/2012
 28/01/2013    01/03/2013    19/04/2013
 02/08/2013
 05/09/2014