9 km SSE of Eureka, Utah

2019-09-10 00:15 UTC · 7.6 km deep · released about 190 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: 2019-09-10 00:15 UTC
Magnitude: M 2.5 (ml)
Depth: 7.6 km below the surface
Felt: no reports yet
Nearest: Utah County, 44 km NE
Status: Reviewed by a seismologist

USGS · last changed by USGS 1971 days ago · we first saw it 1971 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 190 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 80,000× the energy of this one
Magna, Utah 2020 M 5.7 57,000× the energy of this one
Around the size people start to feel M 3.0 5.1× the energy of this one
This earthquake M 2.5 about 190 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 39.8770, -112.0773. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction
Utah County, UT	44 km (27 mi)	SW of here	earthquakes near Utah County
Juab County, UT	64 km (39 mi)	ENE of here	earthquakes near Juab County
Sanpete County, UT	71 km (44 mi)	NW of here	earthquakes near Sanpete County
Salt Lake County, UT	89 km (55 mi)	S of here	earthquakes near Salt Lake County
Wasatch County, UT	93 km (58 mi)	WSW of here	earthquakes near Wasatch County
Tooele County, UT	111 km (69 mi)	SE of here	earthquakes near Tooele County

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

Aftershocks so far

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

1.6 10 km SW of Nephi, Utah 21:31 UTC
1.6 10 km NE of Fountain Green, Utah 13:45 UTC
2.1 17 km E of Leamington, Utah 02:30 UTC
1.5 13 km W of Levan, Utah 12:05 UTC
1.6 19 km SW of Levan, Utah 16:36 UTC
1.6 2 km SE of Mount Nebo, Utah 11:41 UTC
1.8 8 km SW of Levan, Utah 02:58 UTC
1.7 4 km SSW of Mount Nebo, Utah 01:37 UTC
1.6 7 km SW of Vineyard, Utah 10:48 UTC
1.9 10 km W of Mona, Utah 18:51 UTC
1.8 14 km WNW of Levan, Utah 10:17 UTC
1.7 11 km W of Mona, Utah 13:57 UTC
1.5 8 km NNE of Fountain Green, Utah 10:33 UTC
2.9 11 km WSW of Levan, Utah 10:41 UTC
2.6 6 km SW of Rocky Ridge, Utah 06:53 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 05:01 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.