Methane Leaks
Coal · Undetermined

Methane emitter USA_S_441

Venting shaft in United States. Satellites have detected 15 methane plumes here since 26 Mar 2023, most recently on 28 Jul 2026.

15
Plumes
3
Plumes, last 12 months
3,171 kg/h
Largest detected rate
1,393 kg/h
Typical (median) rate
Satellite map of methane plume locations in USA_S_441
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Who likely operates it

We don't have enough evidence to name an operator for this site yet. If you know who runs it, tell us below.

What do confidence levels mean?

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Response so far

Source type
Venting shaft
UNEP notified
Not applicable
Operator responded to UNEP
Not applicable
First seen
26 Mar 2023
Last seen
28 Jul 2026
Coordinates
33.37797, -87.23294 · Open in Google Maps (satellite)

Plume history

28 Jul 2026: 454 kg/h9 Feb 2026: 1,650 kg/h2 Oct 2025: 1,090 kg/h7 Jun 2025: 1,388 kg/h3 Jun 2025: 1,585 kg/h22 May 2025: 1,473 kg/h15 Apr 2025: 935 kg/h2 Dec 2024: 1,633 kg/h2 Aug 2024: 1,339 kg/h26 Jun 2024: 1,911 kg/h23 Mar 2024: 1,856 kg/h2 Feb 2024: 1,393 kg/h29 Jan 2024: 994 kg/h27 Oct 2023: 3,171 kg/h26 Mar 2023: 337 kg/h 26 Mar 2023 28 Jul 2026 3,171 kg/h
Emission rate of each detected plume over time
Detected Emission rate Likely operator
28 Jul 2026Coal 454 kg/h Not yet attributed View
9 Feb 2026Coal 1,650 kg/h Not yet attributed View
2 Oct 2025Coal 1,090 kg/h Not yet attributed View
7 Jun 2025Coal 1,388 kg/h Not yet attributed View
3 Jun 2025Coal 1,585 kg/h Not yet attributed View
22 May 2025Coal 1,473 kg/h Not yet attributed View
15 Apr 2025Coal 935 kg/h Not yet attributed View
2 Dec 2024Coal 1,633 kg/h Not yet attributed View
2 Aug 2024Coal 1,339 kg/h Not yet attributed View
26 Jun 2024Coal 1,911 kg/h Not yet attributed View
23 Mar 2024Coal 1,856 kg/h Not yet attributed View
2 Feb 2024Coal 1,393 kg/h Not yet attributed View
29 Jan 2024Coal 994 kg/h Not yet attributed View
27 Oct 2023Coal 3,171 kg/h Not yet attributed View
26 Mar 2023Coal 337 kg/h Not yet attributed View

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