M2.7 Earthquake near Walden, United States — 30 November 2025, 21:55 UTC
A minor earthquake of magnitude 2.7 was recorded near Walden, United States on , with an epicentre 15 km south-southwest of Walden, at a focal depth of 10.6 km. It ranked as the 309th strongest of 6469 earthquakes recorded in the United States in the preceding 30 days.
Time (UTC): 2025-11-30 21:55:33
Time (your timezone): —
Magnitude: 2.7 (minor)
Focal depth: 10.6 km (shallow)
Epicentre: 40.6051, -106.3500
Location: 15 km SSW of Walden, Colorado
Country: United States
USGS link to NOAA tsunami information: Not linked
Review status: Reviewed
Source: USGS event page
How strong was this earthquake?
Minor earthquakes in this range are felt by people close to the epicentre as a brief jolt or rattle, but they very rarely cause any damage.
A magnitude 2.7 earthquake radiates roughly 169 kg of TNT equivalent in seismic energy.
The USGS assigns this earthquake a significance score of 112, which is below the USGS threshold of more than 600 for its significant-earthquake list. The ranking combines magnitude with available Did You Feel It responses and PAGER alert level; it is not a direct measurement of damage.
What the magnitude scale actually measures →
When it happened locally
That is about 14:50 local solar time at the epicentre, during the afternoon.
This event was deeper than 72% of the 156,239 earthquakes recorded in the United States in our catalogue and stronger than 94% of them.
Where was the epicentre?
The epicentre was located at 40.6051, -106.3500 — 15 km south-southwest of Walden. The closest other recorded event was a magnitude 2.0 earthquake 82 km southwest of here on 14 September 2026.
The nearest other settlements in our records are Dotsero (101 km southwest), Dacono (134 km east-southeast), Gilcrest (137 km east-southeast) and Chacra (144 km southwest).
Why the 11 km depth matters
At 11 km this was a shallow earthquake. Shallow events release their energy close to the surface, so for a given magnitude they produce noticeably stronger shaking — and more damage — than deeper ones. Roughly three quarters of all earthquakes worldwide occur at shallow depths.
This catalogue does not ingest eyewitness responses, so it cannot confirm where this earthquake was felt. Based on magnitude alone, an event this size may be noticed locally, especially close to the epicentre. Its shallow focus makes stronger surface shaking more likely than for a deeper event of the same magnitude.
Read more on how focal depth changes what you feel →
What does the tsunami information flag mean?
The USGS record does not carry a link to NOAA tsunami information. That field is not an all-clear and does not state whether a tsunami occurred. In this case, a damaging tsunami would be less likely because at M2.7 it falls below the magnitude 6.5 threshold that generally applies before a submarine earthquake displaces enough water to generate a damaging tsunami; it occurred inland rather than beneath the sea floor. For an active coastal alert, use tsunami.gov or your local warning authority.
How earthquakes generate tsunamis, and what the alert levels mean →
Aftershocks and local seismic history
No further earthquakes have been recorded within about 150 km of the epicentre in the seven days after this event.
0 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 3.0 event near Elbert on 17 October 2025. This M2.7 event released about 2.8 times less energy than that event.
No other earthquakes have been recorded within 100 km of this epicentre in the past year, which makes this a genuinely isolated event.
How long aftershock sequences last, and how large they get →
Where this event sits in the record
This earthquake is part of the November 2025 worldwide record, and of earthquakes in the United States during November 2025. Browse the full monthly archive to compare periods.
Nearest recorded earthquakes to this epicentre
- M2.0 earthquake near Phippsburg, United States — (82 km SW)
- M1.9 earthquake near Yampa, United States — (93 km SW)
- M2.0 earthquake near Yampa, United States — (96 km SW)
- M2.5 earthquake near Dotsero, United States — (101 km SW)
- M2.9 earthquake near Dacono, United States — (134 km ESE)
- M2.1 earthquake near Chacra, United States — (144 km SW)
- M2.8 earthquake near Redstone, United States — (171 km SSW)
Other recent earthquakes in the United States
- M1.6 earthquake near Humboldt, United States —
- M1.1 earthquake near Julian, United States —
- M1.7 earthquake near Bear Creek, United States —
- M1.3 earthquake near Lindsay, United States —
- M2.0 earthquake near Tonopah, United States —
- M1.7 earthquake near Pāhala, United States —
- M1.9 earthquake near King City, United States —
- M1.9 earthquake near Akhiok, United States —
- M1.8 earthquake near Pāhala, United States —
- M1.4 earthquake near Beaumont, United States —
Other magnitude 2 earthquakes worldwide
- M2.4 earthquake near Dublin, United States —
- M2.6 earthquake near Milford, United States —
- M2.6 earthquake near Toyah, United States —
- M2.5 earthquake near Anchor Point, United States —
- M2.5 earthquake near Nikolski, United States —
- M2.5 earthquake near Whites City, United States —
- M2.4 earthquake near King Cove, United States —
- M2.6 earthquake near Pāhala, United States —
Questions about this earthquake
How strong was the earthquake near Walden?
It measured magnitude 2.7 — a minor earthquake. A magnitude 2.7 earthquake radiates roughly 169 kg of TNT equivalent in seismic energy.
How deep was the earthquake near Walden?
The focus was 11 km below the surface, which counts as shallow.
Was the Walden earthquake felt at the surface?
At magnitude 2.7 and a focal depth of 11 km, shaking would have been concentrated near the epicentre.
When did the earthquake near Walden happen?
30 November 2025 at 21:55 UTC.
Was there a tsunami?
No. The USGS record carries no tsunami-information link for this event.
Have there been aftershocks?
No further earthquakes have been recorded within about 150 km of the epicentre in the seven days after this event.
How often do earthquakes happen near Walden?
0 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 3.0 event near Elbert on 17 October 2025. This M2.7 event released about 2.8 times less energy than that event.