Earthquake · reviewed by a seismologist
M 2.5ml
Earthquake near Craig, CO
No earthquake was likely felt in Craig in the 24 hours to 4:38 pm MST (23:38 UTC). The last one was M 2.5, 5 km (3 mi) SSE, at 3:39 pm MDT on 21 August 2019, estimated intensity III (weak) in town. Every earthquake near Craig
This page: a magnitude 2.5 earthquake was recorded 33 km (20 mi) west-northwest of Craig, CO, at 8:09 pm MDT on 15 August 2019 (02:09 UTC), 11 km deep.
USGS: 20 km NE of Maybell, Colorado
- When
- 8:09 pm MDT on 15 August 2019 ()
- Where
- 33 km (20 mi) west-northwest of Craig, CO · earthquakes near Craig
- Magnitude
- M 2.5 (ml)
- Depth
- 11 km below the surface
- Felt
- no reports yet
- Nearest
- Moffat County, 27 km W
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2566 days ago
Earthquake alerts for Craig, CO
Get a notification in this browser when USGS records an earthquake near Craig, CO. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 20 km (12 mi) from the epicentre. In Craig, 33 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
How big was it?
This earthquake released about 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
- Magna, Utah 2020 M 5.7 63,000× the energy of this one
- Around the size people start to feel M 3.0 5.6× the energy of this one
- This earthquake M 2.5 about 170 lb of TNT
Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.
For this area
No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.
Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 40.6368, -107.8985. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Moffat County, CO | 27 km (17 mi) | W | earthquakes near Moffat County |
| Rio Blanco County, CO | 78 km (49 mi) | SSW | earthquakes near Rio Blanco County |
| Routt County, CO | 79 km (49 mi) | ESE | earthquakes near Routt County |
| Garfield County, CO | 115 km (72 mi) | S | earthquakes near Garfield County |
| Sweetwater County, WY | 140 km (87 mi) | NW | earthquakes near Sweetwater County |
| Carbon County, WY | 144 km (89 mi) | NE | earthquakes near Carbon County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
10 earthquakes have been recorded within 50 km since this one.
- 2.1 21 km NE of Maybell, Colorado
- 2.2 19 km WNW of Maybell, Colorado
- 2.2 29 km NNW of Maybell, Colorado
- 2.3 11 km ESE of Maybell, Colorado
- 2.6 20 km ENE of Maybell, Colorado
- 2.4 7 km SSE of Maybell, Colorado
- 2.0 15 km SSW of Maybell, Colorado
- 2.0 12 km NNE of Maybell, Colorado
- 1.8 21 km NNW of Maybell, Colorado
- 2.5 5 km SSE of Craig, Colorado
Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.