Blasting
notices

There is no blasting notice at the moment.

Cancellation

Blasting may be cancelled due to unfavourable winds or community activities, such as religious ceremonies.

 

Environmental Standards

We are authorized to perform two blasts per day, 365 days a year, between 11 a.m. and noon, and between 3 p.m. and 4 p.m. The permitted blast length is 15 seconds. Standards are 12.7 mm/second for vibrations and 128 dB for noise.

 

Blasting results

Filter results :
Date Reference Length Seismograph Wind Direction Vibration Decibels
2021-04-11 15:00 (Canceled) 20210411 PM 14904 MS
2021-04-10 11:00 (Canceled) 20210410 AM 14930 MS
2021-04-10 15:00 20210410 PM 14904 MS
Jacques-Cartier Sud-Ouest SSD SSD
Musée Sud-Ouest SSD SSD
Renaud Sud-Ouest SSD SSD
Des Saules Sud-Ouest SSD SSD
Abitibi Sud-Ouest SSD SSD
Royale Sud-Ouest SSD SSD
Lasalle Sud-Ouest SSD SSD
2021-04-09 15:00 (Canceled) 20210409 PM 14904 MS
2021-04-08 15:00 (Canceled) 20210408 PM 14180 MS
2021-04-05 15:00 20210405 PM 4452 MS
Jacques-Cartier NNE 1.53 mm/s 108.8 dBL
Musée NNE 2.44 mm/s 115.7 dBL
Renaud NNE SSD SSD
Des Saules NNE SSD SSD
Abitibi NNE 1.35 mm/s 109.9 dBL
Royale NNE 1.66 mm/s 115.6 dBL
Lasalle NNE SSD SSD
2021-04-04 15:00 20210404 PM 11756 MS
Jacques-Cartier NNE 3.21 mm/s 101.9 dBL
Musée NNE 3.14 mm/s 104.9 dBL
Renaud NNE 1.40 mm/s 101.9 dBL
Des Saules NNE SSD SSD
Abitibi NNE SSD SSD
Royale NNE 2.08 mm/s 107 dBL
Lasalle NNE 2.18 mm/s 98.8 dBL
2021-04-03 15:00 20210403 PM 13498 MS
Jacques-Cartier SO 2.10 mm/s 105.5 dBL
Musée SO 1.23 mm/s 102.8 dBL
Renaud SO SSD SSD
Des Saules SO SSD SSD
Abitibi SO SSD SSD
Royale SO 2.41 mm/s 106.5 dBL
Lasalle SO SSD SSD
2021-04-02 11:00 20210402 AM 4488 MS
Jacques-Cartier N 1.45 mm/s 101.9 dBL
Musée N 3.5 mm/s 101.9 dBL
Renaud N SSD SSD
Des Saules N SSD SSD
Abitibi N SSD SSD
Royale N 1.51 mm/s 106.0 dBL
Lasalle N 1.27 mm/s 95.9 dBL
2021-04-01 15:00 20210401 PM 15000 MS
Jacques-Cartier Nord 2.71 mm/s 115.6 dBL
Musée Nord 3.07 mm/s 115.0 dBL
Renaud Nord SSD SSD
Des Saules Nord SSD SSD
Abitibi Nord 1.56 mm/s 110.2 dBL
Royale Nord 2.08 mm/s 118.1 dBL
Lasalle Nord 1.33 mm/s 94.0 dBL

Glossary

Date : Blast date and time

Reference : Blast identification

Length : Blast length or the period between the detonation of the first shot and the detonation of the last shot in a sequence.

Seismograph : Measuring instrument equipped with a geophone and a microphone. The geophone detects ground motion and vibrations passing through the earth’s crust. The microphone detects air pressure variations..

Wind Direction : Indicates wind direction

Vibration : Indicates ground motion.

Decibels (dB) : Indicates air pressure variations.

Below Detection Limit (BDL) : Indicates seismograph has not been triggered. Seismograph is not triggered when ground vibrations are below 1 mm/s.

Not available (NA) : Indicates value is unavailable.

ms : Length is measured in milliseconds (1,000 ms = 1 second).