QuakeIndex

explosion · reviewed by a seismologist

M 1.9ml

Earthquake near White City, OR

USGS: 6 km SE of White City, Oregon

8 km (5 mi) NE of Medford, OR

3:04 pm PDT, Sep 25, 2019 · · -1.1 km deep · released about 18 lb of TNT

10 km30 km60 km120 km N Jackson County 10 kmJosephine County 64 kmSiskiyou County 93 kmKlamath County 99 kmDouglas County 103 kmCurry County 117 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
3:04 pm PDT on 25 September 2019 ()
Where
5 km (3 mi) SE of White City, OR · earthquakes near White City
Magnitude
M 1.9 (ml)
Depth
-1.1 km below the surface
Felt
no reports yet
Nearest
Jackson County, 10 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2564 days ago

A magnitude 1.9 earthquake was recorded 5 km (3 mi) SE of White City, OR, at 3:04 pm PDT on 25 September 2019 (22:04 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, Central Point, Medford, Phoenix, Talent, Jacksonville.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 18 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 840,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 600,000× the energy of this one
  3. Around the size people start to feel M 3.0 53× the energy of this one
  4. This earthquake M 1.9 about 18 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 42.3992, -122.7938. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Jackson County, OR 10 km (6 mi) E earthquakes near Jackson County
Josephine County, OR 64 km (40 mi) W earthquakes near Josephine County
Siskiyou County, CA 93 km (58 mi) SSE earthquakes near Siskiyou County
Klamath County, OR 99 km (62 mi) ENE earthquakes near Klamath County
Douglas County, OR 103 km (64 mi) NNW earthquakes near Douglas County
Curry County, OR 117 km (72 mi) W 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 6 km NNW of Eagle Point, Oregon
  2. 1.8 6 km SE of White City, Oregon
  3. 1.9 8 km E of Ashland, Oregon
  4. 1.6 7 km NNW of Eagle Point, Oregon
  5. 1.5 15 km SE of Ashland, Oregon
  6. 1.7 7 km SSE of White City, Oregon
  7. 1.5 5 km ENE of Medford, Oregon
  8. 1.9 6 km NE of Medford, Oregon
  9. 1.8 4 km SSE of Eagle Point, Oregon
  10. 1.7 3 km NE of Medford, Oregon
  11. 1.9 7 km NNW of Eagle Point, Oregon
  12. 1.6 7 km NNE of Phoenix, Oregon
  13. 1.8 Oregon
  14. 1.7 Oregon
  15. 1.6 19 km SW of Ashland, 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.