QuakeIndex

explosion · reviewed by a seismologist

M 1.8ml

Earthquake near Shady Cove, OR

USGS: 6 km SSW of Shady Cove, Oregon

24 km (15 mi) N of Medford, OR

1:13 pm PDT, Sep 7, 2016 · · -1.1 km deep · released about 15 lb of TNT

10 km30 km60 km120 km N Jackson County 21 kmJosephine County 62 kmDouglas County 85 kmKlamath County 99 kmSiskiyou County 110 kmCurry County 112 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
1:13 pm PDT on 7 September 2016 ()
Where
7 km (4 mi) SSW of Shady Cove, OR · earthquakes near Shady Cove
Magnitude
M 1.8 (ml)
Depth
-1.1 km below the surface
Felt
no reports yet
Nearest
Jackson County, 21 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 558 days ago

A magnitude 1.8 earthquake was recorded 7 km (4 mi) SSW of Shady Cove, OR, at 1:13 pm PDT on 7 September 2016 (20:13 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Eagle Point, White City, Central Point, Gold Hill, Medford, Jacksonville.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 730,000× the energy of this one
  3. Around the size people start to feel M 3.0 65× the energy of this one
  4. This earthquake M 1.8 about 15 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 42.5530, -122.8463. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Jackson County, OR 21 km (13 mi) SE earthquakes near Jackson County
Josephine County, OR 62 km (39 mi) WSW earthquakes near Josephine County
Douglas County, OR 85 km (53 mi) NNW earthquakes near Douglas County
Klamath County, OR 99 km (62 mi) E earthquakes near Klamath County
Siskiyou County, CA 110 km (69 mi) SSE earthquakes near Siskiyou County
Curry County, OR 112 km (70 mi) W earthquakes near Curry County

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

Aftershocks so far

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

  1. 1.5 3 km WNW of Butte Falls, Oregon
  2. 1.9 3 km NW of Butte Falls, Oregon
  3. 1.9 7 km SSE of White City, Oregon
  4. 1.7 5 km E of Medford, Oregon
  5. 1.7 3 km SE of Eagle Point, Oregon
  6. 1.6 13 km SW of Ashland, Oregon
  7. 1.8 15 km ESE of Prospect, Oregon
  8. 1.8 2 km SW of White City, Oregon
  9. 1.9 5 km SSE of Eagle Point, Oregon
  10. 1.9 6 km SSW of Shady Cove, Oregon
  11. 1.9 3 km ESE of New Hope, Oregon
  12. 2.0 3 km SE of Eagle Point, Oregon
  13. 1.9 6 km SSW of Shady Cove, Oregon
  14. 1.9 4 km SSW of Jacksonville, Oregon
  15. 1.9 4 km SE of Eagle Point, 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.