0 km NNW of Coquille, Oregon

2021-11-12 23:16 UTC · 11 km deep · released about 44 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: 2021-11-12 23:16 UTC
Magnitude: M 2.1 (ml)
Depth: 11 km below the surface
Felt: 1 report · strongest reported intensity I
Nearest: Coos County, 8 km E
Status: Reviewed by a seismologist

USGS · last changed by USGS 1755 days ago · we first saw it 1755 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 44 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 340,000× the energy of this one
Magna, Utah 2020 M 5.7 240,000× the energy of this one
Around the size people start to feel M 3.0 22× the energy of this one
This earthquake M 2.1 about 44 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 43.1843, -124.1908. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction
Coos County, OR	8 km (5 mi)	W of here	earthquakes near Coos County
Curry County, OR	80 km (50 mi)	N of here	earthquakes near Curry County
Douglas County, OR	85 km (53 mi)	W of here	earthquakes near Douglas County
Josephine County, OR	102 km (63 mi)	NNW of here	earthquakes near Josephine County
Lane County, OR	133 km (83 mi)	SW of here	earthquakes near Lane County

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

Aftershocks so far

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

1.6 12 km ENE of Glasgow, Oregon 16:55 UTC
2.3 19 km WSW of Barview, Oregon 05:33 UTC
2.2 22 km WSW of Barview, Oregon 04:16 UTC
2.3 21 km WSW of Barview, Oregon 02:57 UTC
2.6 10 km NW of Langlois, Oregon 06:08 UTC
1.8 28 km E of Glasgow, Oregon 21:30 UTC
1.5 15 km ESE of Myrtle Point, Oregon 17:38 UTC
1.5 5 km ESE of Coquille, Oregon 21:58 UTC
1.5 18 km ENE of Powers, Oregon 22:45 UTC
2.4 6 km NE of Bandon, Oregon 10:04 UTC
1.5 11 km E of Glasgow, Oregon 21:41 UTC
2.0 21 km WSW of Bandon, Oregon 10:33 UTC
1.6 4 km W of Powers, Oregon 18:51 UTC
2.0 9 km SW of Langlois, Oregon 13:27 UTC
1.7 30 km E of Bunker Hill, Oregon 21:56 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 08:14 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.