Earthquake · reviewed by a seismologist
M 2.4ml
Earthquake near Loma, CO
No earthquake was likely felt in Loma in the 24 hours to 3:27 pm MST (22:27 UTC). The last one was M 3.8, 44 km (27 mi) WSW, at 4:12 pm MDT on 31 May 2022, estimated intensity II (weak) in town; 100 felt reports to USGS. Every earthquake near Loma
This page: a magnitude 2.4 earthquake was recorded 47 km (29 mi) west-southwest of Loma, CO, at 9:14 pm MDT on 16 October 2019 (03:14 UTC), 6.4 km deep.
USGS: 35 km E of Thompson Springs, Utah
- When
- 9:14 pm MDT on 16 October 2019 ()
- Where
- 47 km (29 mi) west-southwest of Loma, CO · earthquakes near Loma
- Magnitude
- M 2.4 (ml)
- Depth
- 6.4 km below the surface
- Felt
- no reports yet
- Nearest
- Grand County, 24 km WSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2535 days ago
Earthquake alerts for Loma, CO
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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 minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 20 km (12 mi) from the epicentre. In Loma, 47 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 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
- Magna, Utah 2020 M 5.7 92,000× the energy of this one
- Around the size people start to feel M 3.0 8.2× the energy of this one
- This earthquake M 2.4 about 120 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 39.0320, -109.3100. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Grand County, UT | 24 km (15 mi) | WSW | earthquakes near Grand County |
| Mesa County, CO | 73 km (46 mi) | E | earthquakes near Mesa County |
| Montrose County, CO | 114 km (71 mi) | SE | earthquakes near Montrose County |
| Carbon County, UT | 131 km (81 mi) | WNW | earthquakes near Carbon County |
| San Miguel County, CO | 137 km (85 mi) | SE | earthquakes near San Miguel County |
| Rio Blanco County, CO | 141 km (88 mi) | NE | earthquakes near Rio Blanco County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
25 earthquakes have been recorded within 50 km since this one.
- 1.7 37 km NE of Thompson Springs, Utah
- 2.3 35 km SW of Loma, Colorado
- 1.8 35 km WSW of Loma, Colorado
- 1.9 42 km NNE of Thompson Springs, Utah
- 1.7 Utah
- 2.1 28 km NNE of Castle Valley, Utah
- 1.9 28 km NNE of Castle Valley, Utah
- 1.7 27 km NNE of Castle Valley, Utah
- 1.6 34 km E of Thompson Springs, Utah
- 1.8 27 km NNE of Castle Valley, Utah
- 1.6 28 km NNE of Castle Valley, Utah
- 1.8 27 km NNE of Castle Valley, Utah
- 1.9 27 km NNE of Castle Valley, Utah
- 1.7 29 km NNE of Castle Valley, Utah
- 1.6 27 km NNE of Castle Valley, Utah
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.