9 km WNW of Helper, Utah

2019-07-02 11:07 UTC · -1.0 km deep · released about 6.8 lb of TNT

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: 2019-07-02 11:07 UTC
Magnitude: M 1.6 (ml)
Depth: -1.0 km below the surface
Felt: no reports yet
Nearest: Carbon County, 32 km ESE
Status: Reviewed by a seismologist

USGS · last changed by USGS 2645 days ago · we first saw it 2645 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 6.8 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.

Mineral, Virginia 2011 M 5.8 2,200,000× the energy of this one
Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
Around the size people start to feel M 3.0 140× the energy of this one
This earthquake M 1.6 about 6.8 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.

Where

Map loads when it scrolls into view

Epicentre 39.7333, -110.9515. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction
Carbon County, UT	32 km (20 mi)	WNW of here	earthquakes near Carbon County
Sanpete County, UT	67 km (42 mi)	NE of here	earthquakes near Sanpete County
Wasatch County, UT	69 km (43 mi)	SSE of here	earthquakes near Wasatch County
Utah County, UT	75 km (46 mi)	SE of here	earthquakes near Utah County
Duchesne County, UT	76 km (47 mi)	SW of here	earthquakes near Duchesne County
Emery County, UT	83 km (52 mi)	NNW of here	earthquakes near Emery County

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

Aftershocks so far

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

1.7 5 km ENE of Kenilworth, Utah 21:44 UTC
1.6 7 km ENE of Kenilworth, Utah 08:18 UTC
2.2 7 km ENE of Kenilworth, Utah 02:51 UTC
1.6 27.6 km WNW of Mapleton, UT 19:56 UTC
2.9 28 km SE of Mapleton, UT 21:41 UTC
2.6 27 km ESE of Mapleton, UT 21:41 UTC
1.6 9.4 km ESE of Hiawatha, UT 23:56 UTC
1.9 4 km NNE of Helper, Utah 16:50 UTC
2.1 8 km NW of Helper, UT 18:22 UTC
1.7 19 km NW of East Carbon City, Utah 01:21 UTC
1.8 7 km ENE of Kenilworth, Utah 06:59 UTC
1.9 6 km ENE of Kenilworth, Utah 20:19 UTC
2.5 8 km ENE of Kenilworth, Utah 19:20 UTC
1.5 7 km ENE of Kenilworth, Utah 05:59 UTC
1.7 7 km E of Kenilworth, Utah 02:06 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 13:02 UTC. 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.