QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Ouray, CO

No earthquake was likely felt in Ouray in the 24 hours to 7:45 am MST (14:45 UTC). The last one was M 3.4, 258 km (161 mi) ESE, at 3:34 am MST on 8 November 2026, estimated intensity II (weak) in town; 2 felt reports to USGS. Every earthquake near Ouray

This page: a magnitude 1.6 earthquake was recorded 50 km (31 mi) southeast of Ouray, CO, at 11:05 pm MDT on 1 June 2019 (05:05 UTC), 5.0 km deep.

USGS: 33 km ESE of Silverton, Colorado

11:05 pm MDT, Jun 1, 2019 · · 5.0 km deep · released about 7.6 lb of TNT

10 km30 km60 km120 km N Hinsdale County 17 kmMineral County 32 kmSan Juan County 32 kmArchuleta County 57 kmLa Plata County 61 kmOuray County 68 kmRio Grande County 80 kmSan Miguel County 104 kmDolores County 104 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
11:05 pm MDT on 1 June 2019 ()
Where
50 km (31 mi) southeast of Ouray, CO · earthquakes near Ouray
Magnitude
M 1.6 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Hinsdale County, 17 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2636 days ago

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 10 km (6 mi) from the epicentre. In Ouray, 50 km away, the estimate is intensity I (not felt). 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 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 37.6637, -107.3326. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Hinsdale County, CO 17 km (11 mi) NNW earthquakes near Hinsdale County
Mineral County, CO 32 km (20 mi) ESE earthquakes near Mineral County
San Juan County, CO 32 km (20 mi) WNW earthquakes near San Juan County
Archuleta County, CO 57 km (35 mi) SSE earthquakes near Archuleta County
La Plata County, CO 61 km (38 mi) SW earthquakes near La Plata County
Ouray County, CO 68 km (42 mi) NW earthquakes near Ouray County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

5 earthquakes have been recorded within 50 km since this one.

  1. 2.5 12 km SE of Silverton, Colorado
  2. 2.1 14 km S of Ophir, Colorado
  3. 2.2 16 km S of Ophir, Colorado
  4. 3.6 16 km S of Ophir, Colorado
  5. 1.7 4 km WSW of Silverton, 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.