QuakeIndex

explosion · reviewed by a seismologist

M 1.7ml

Earthquake near Glide, OR

USGS: 24 km NE of Glide, Oregon

68 km (42 mi) SSE of Eugene, OR

12:16 pm PDT, Aug 27, 2018 · · -0.4 km deep · released about 10 lb of TNT

10 km30 km60 km120 km N Douglas County 29 kmLane County 51 kmCoos County 101 kmLinn County 117 kmJackson County 119 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
12:16 pm PDT on 27 August 2018 ()
Where
25 km (15 mi) NE of Glide, OR · earthquakes near Glide
Magnitude
M 1.7 (ml)
Depth
-0.4 km below the surface
Felt
no reports yet
Nearest
Douglas County, 29 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2958 days ago

A magnitude 1.7 earthquake was recorded 25 km (15 mi) NE of Glide, OR, at 12:16 pm PDT on 27 August 2018 (19:16 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Culp Creek.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 10 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
  3. Around the size people start to feel M 3.0 95× the energy of this one
  4. This earthquake M 1.7 about 10 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 43.4677, -122.9013. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Douglas County, OR 29 km (18 mi) SW earthquakes near Douglas County
Lane County, OR 51 km (32 mi) N earthquakes near Lane County
Coos County, OR 101 km (63 mi) WSW earthquakes near Coos County
Linn County, OR 117 km (73 mi) NNE earthquakes near Linn County
Jackson County, OR 119 km (74 mi) S earthquakes near Jackson County
Benton County, OR 122 km (76 mi) NNW earthquakes near Benton County

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

Aftershocks so far

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

  1. 1.6 5 km NW of Roseburg North, Oregon
  2. 1.6 Oregon
  3. 1.7 5 km E of Yoncalla, Oregon
  4. 1.6 22 km SE of Glide, Oregon
  5. 1.6 Oregon
  6. 1.7 19 km SSE of Glide, Oregon
  7. 1.5 29 km ENE of Glide, Oregon
  8. 1.6 0 km SW of Roseburg North, Oregon
  9. 2.0 6 km NW of Roseburg North, Oregon
  10. 1.9 6 km NW of Roseburg North, Oregon
  11. 1.9 Oregon
  12. 1.6 0 km NW of Roseburg North, Oregon
  13. 1.5 8 km SSW of Cottage Grove, Oregon
  14. 1.5 4 km NNE of Roseburg North, Oregon
  15. 1.6 30 km ENE of Glide, 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.