16 Jul 2026, 13:20 UTC · Jul 16, 9:20 AM ET

M3.3 earthquake 39 km SSE of Mammoth, Wyoming

A magnitude 3.3 earthquake struck 39 km SSE of Mammoth, Wyoming at Jul 16, 9:20 AM ET, 7 km deep, minor – felt by people near the epicenter. 28 people reported feeling it.

M2.7 57 km NE of Kelly, WyomingM2.7 22 km SSW of Mammoth, WyomingM2.7 33 km E of West Yellowstone, MontanaM2.7 23 km SSW of Mammoth, WyomingM2.8 3 km ESE of Hebgen Lake Estates, MontanaM2.9 30 km W of Hebgen Lake Estates, MontanaM3.1 23 km SSW of Mammoth, WyomingM3.1 22 km SSW of Mammoth, WyomingM3.2 22 km SSW of Mammoth, WyomingM3.3 22 km SSW of Mammoth, WyomingM3.3 39 km SSE of Mammoth, WyomingM3.4 57 km NE of Kelly, WyomingM3.7 22 km SSW of Mammoth, Wyoming
under 33–44–55–66+
Magnitude3.3 ml
Time16 Jul 2026, 13:20 UTC
Location44.666°, -110.468° – 39 km SSE of Mammoth, Wyoming
Depth6.5 km
Felt reports28
USGS eventuu80145411
Within 100 km

Other earthquakes nearby this year

Mag.WhereWhen (ET)DepthFelt
3.722 km SSW of Mammoth, WyomingOct 28, 9:22 AM
353 d ago
7 km11 reports
3.457 km NE of Kelly, WyomingSep 7, 12:25 AM
40 d ago
7 km–
3.322 km SSW of Mammoth, WyomingSep 28, 3:29 AM
384 d ago
8 km1 report
3.222 km SSW of Mammoth, WyomingNov 9, 7:00 PM
341 d ago
8 km–
3.122 km SSW of Mammoth, WyomingSep 28, 3:38 AM
384 d ago
8 km1 report
3.123 km SSW of Mammoth, WyomingNov 8, 10:04 AM
342 d ago
7 km3 reports
2.930 km W of Hebgen Lake Estates, MontanaApr 4, 10:26 PM
195 d ago
10 km2 reports
2.83 km ESE of Hebgen Lake Estates, MontanaSep 8, 3:21 AM
39 d ago
11 km–
2.723 km SSW of Mammoth, WyomingOct 9, 12:06 AM
373 d ago
8 km1 report
2.733 km E of West Yellowstone, MontanaDec 31, 3:44 PM
289 d ago
7 km–
2.757 km NE of Kelly, WyomingSep 7, 3:43 AM
40 d ago
7 km–
2.722 km SSW of Mammoth, WyomingOct 28, 9:00 AM
353 d ago
7 km–
FAQ

About this earthquake

How strong was the 39 km SSE of Mammoth, Wyoming earthquake?

Magnitude 3.3 (ml), minor – felt by people near the epicenter. Depth 7 km.

Was it felt?

28 people reported feeling it to the USGS "Did You Feel It?" survey; the highest reported intensity was 3.8.

Were there aftershocks?

No earthquakes within 100 km have followed so far in our records.

Earthquakes

More

Source: U.S. Geological Survey (USGS) earthquake catalog, real-time feeds and FDSN event service; magnitudes and locations are revised by seismologists for hours after an event. Times are Eastern (ET) unless marked UTC. Not an alert service: for warnings follow local authorities and tsunami centers.

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