Methane Leaks
Coal · Persistent

Methane emitter USA_S_421

Coal mine facility (generic) in United States. Satellites have detected 6 methane plumes here since 14 Feb 2025, most recently on 3 Jun 2026.

6
Plumes
4
Plumes, last 12 months
1,279 kg/h
Largest detected rate
654 kg/h
Typical (median) rate
Satellite map of methane plume locations in USA_S_421
Map imagery © Mapbox © OpenStreetMap © MaxarOpen the interactive map →
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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
Coal mine facility (generic)
UNEP notified
Not applicable
Operator responded to UNEP
Not applicable
First seen
14 Feb 2025
Last seen
3 Jun 2026
Coordinates
39.21468, -80.07753 · Open in Google Maps (satellite)

Plume history

3 Jun 2026: 1,279 kg/h21 Apr 2026: 783 kg/h28 Mar 2026: 526 kg/h29 Nov 2025: 1,007 kg/h3 Jun 2025: 443 kg/h14 Feb 2025: 321 kg/h 14 Feb 2025 3 Jun 2026 1,279 kg/h
Emission rate of each detected plume over time
Detected Emission rate Likely operator
3 Jun 2026Coal 1,279 kg/h Not yet attributed View
21 Apr 2026Coal 783 kg/h Not yet attributed View
28 Mar 2026Coal 526 kg/h Not yet attributed View
29 Nov 2025Coal 1,007 kg/h Not yet attributed View
3 Jun 2025Coal 443 kg/h Not yet attributed View
14 Feb 2025Coal 321 kg/h Not yet attributed View

Authorities you can notify

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