QuakeIndex

explosion · reviewed by a seismologist

M 1.5ml

Earthquake near Sutherlin, OR

USGS: 3 km SE of Fair Oaks, Oregon

74 km (46 mi) S of Eugene, OR

11:31 am PST, Dec 29, 2016 · · -0.5 km deep · released about 5.4 lb of TNT

10 km30 km60 km120 km N Douglas County 12 kmLane County 64 kmCoos County 77 kmJosephine County 116 kmJackson County 116 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
11:31 am PST on 29 December 2016 ()
Where
10 km (6 mi) E of Sutherlin, OR · earthquakes near Sutherlin
Magnitude
M 1.5 (ml)
Depth
-0.5 km below the surface
Felt
no reports yet
Nearest
Douglas County, 12 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3560 days ago

A magnitude 1.5 earthquake was recorded 10 km (6 mi) E of Sutherlin, OR, at 11:31 am PST on 29 December 2016 (19:31 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Glide, Roseburg North, Roseburg, Yoncalla, Green.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 43.3892, -123.1833. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Douglas County, OR 12 km (7 mi) SSE earthquakes near Douglas County
Lane County, OR 64 km (40 mi) NNE earthquakes near Lane County
Coos County, OR 77 km (48 mi) WSW earthquakes near Coos County
Josephine County, OR 116 km (72 mi) SSW earthquakes near Josephine County
Jackson County, OR 116 km (72 mi) SSE earthquakes near Jackson County
Curry County, OR 132 km (82 mi) SW earthquakes near Curry County

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

Aftershocks so far

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

  1. 1.8 Oregon
  2. 1.9 Oregon
  3. 1.6 0 km NW of Roseburg North, Oregon
  4. 1.5 8 km SSW of Cottage Grove, Oregon
  5. 1.5 4 km NNE of Roseburg North, Oregon
  6. 1.6 9 km W of Melrose, Oregon
  7. 1.6 30 km ENE of Glide, Oregon
  8. 1.5 14 km ENE of Fair Oaks, Oregon
  9. 1.6 2 km SW of Drain, Oregon
  10. 1.5 2 km ESE of Green, Oregon
  11. 1.6 6 km NNE of Myrtle Creek, Oregon
  12. 1.5 2 km WNW of Roseburg North, Oregon
  13. 1.7 2 km SW of Drain, Oregon
  14. 1.6 21 km NE of Glide, Oregon
  15. 1.5 4 km NNE of Roseburg North, Oregon

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.