Sulphur Mines Investigation
MAIN MENU:
This page was last updated on 04/16/2025 at 5:18:55 PM.
Microseismic Monitoring
Seismic Events at Sulphur Mines Dome
| Number | Date | Time | Magnitude (surface) | Magnitude (borehole) | Report |
| 1 | 3/18/2023 | 04:06:06 PM | 0 - 1.0 | Report | |
| 2 | 11/1/2023 | 11:48 PM | "not a measurable microseismic event" | N/A | |
| 3 | 12/20/2023 | 07:04:29 PM | -0.73 | Report | |
| 4 | 3/10/2024 | 02:53:20 PM | 0.2 | Report | |
| 5 | 3/16/2024 | 04:29:45 PM | -0.33 | Report | |
| 6 | 3/18/2024 | 06:38:29 PM | -0.44 | Report | |
| 7 | 3/27/2024 | 10:37:42 AM | -0.1 | Report | |
| 8 | 3/27/2024 | 10:38:05 AM | -0.38 | See previous report | |
| 9 | 3/30/2024 | 12:05:42 AM | -0.75 | Report | |
| 10 | 6/14/2024 | 05:25:21 AM | 0.13 | Report | |
| 11 | 6/24/2024 | 02:14:24 PM | -0.96 | -0.7 | Report |
| 12 | 6/26/2024 | 07:27:22 AM | -0.82 | -0.7 | Report |
These events were included in the below reports and compiled into one table. Borehole microseismic, which is deployed inside the wellbores of PPG 6X and PPG 20, is generally more accurate than surface seismic. Both systems are currently active at Sulphur Mines dome. This table going forward will be updated as new events are reported by Westlake.
Surface seismic station
| BIWEEKLY SURFACE SEISMIC REPORTS |
Report for March 1-14, 2023 - received March 24, 2023
Report for March 15-31, 2023 - received April 12, 2023
Report for April 1-14, 2023 - received April 19, 2023
Report for April 15-30, 2023 - received May 2, 2023
Report for May 1-15, 2023 - received May 19, 2023
Report for May 16-31, 2023 - received June 6, 2023
Report for June 1-15, 2023 - received June 23, 2023
Report for June 16-30, 2023 - received July 6, 2023
Report for July 1-15, 2023 - received July 25, 2023
Report for July 16-31, 2023 - received August 8, 2023
Report for August 1-15, 2023 - received August 23, 2023
Report for August 16-30, 2023 - received September 11, 2023
Report for September 1-15, 2023 - received September 19, 2023
Report for September 16-30, 2023 - received October 10, 2023
Report for October 1-15, 2023 - received October 17, 2023
Report for October 16-31, 2023 - received November 7, 2023
Report for November 1-15, 2023 - received November 21, 2023
Report for November 16-30, 2023 - received December 6, 2023
Report for December 1-15, 2023 - received December 21, 2023
Report for December 16-31, 2023 - received January 5, 2024
Report for January 1-15, 2024 - received January 23, 2024
Report for January 16-31, 2024 - received February 6, 2024
Report for February 1-15, 2024 - received February 21, 2024
Report for February 16-29, 2024 - received March 5, 2024
Report for March 1-15, 2024 - received March 20, 2024
Report for March 16-31, 2024 - received April 2, 2024
Report for April 1-15, 2024 - received April 16, 2024
Report for April 16-30, 2024 - received May 15, 2024
Report for May 1-15, 2024 - received May 18, 2024
Report for May 16-31, 2024 - received June 5, 2024
Report for June 1-15, 2024 - received June 19, 2024
| BOREHOLE SEISMIC REPORTS |
Proposal - Alert Levels for Borehole Seismic Monitoring
May 2024 - received June 5, 2024
June 2024 - received July 9, 2024
July 2024 - received August 6, 2024
August 2024 - received August 6, 2024
September 2024 - received October 4, 2024
October 2024 - received December 15, 2024 (revised)
November 2024 - received December 5, 2024
December 2024 - received January 8, 2025
January 2025 - received February 20, 2025
February 2025 - recieved April 4, 2025
March 2025 - received April 16, 2025