QuakeIndex

explosion · reviewed by a seismologist

M 1.6ml

Earthquake near Gold Hill, OR

USGS: 3 km WNW of Gold Hill, Oregon

23 km (14 mi) WNW of Medford, OR

4:00 pm PDT, May 24, 2018 · · -1.2 km deep · released about 7.6 lb of TNT

10 km30 km60 km120 km N Jackson County 35 kmJosephine County 40 kmCurry County 92 kmDouglas County 94 kmSiskiyou County 106 kmDel Norte County 106 kmCoos 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
4:00 pm PDT on 24 May 2018 ()
Where
4 km (2 mi) WNW of Gold Hill, OR · earthquakes near Gold Hill
Magnitude
M 1.6 (ml)
Depth
-1.2 km below the surface
Felt
no reports yet
Nearest
Jackson County, 35 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 560 days ago

A magnitude 1.6 earthquake was recorded 4 km (2 mi) WNW of Gold Hill, OR, at 4:00 pm PDT on 24 May 2018 (23:00 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Rogue River, Central Point, Fruitdale, Jacksonville, Grants Pass, White City.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 42.4408, -123.0955. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Jackson County, OR 35 km (22 mi) E earthquakes near Jackson County
Josephine County, OR 40 km (25 mi) W earthquakes near Josephine County
Curry County, OR 92 km (57 mi) W earthquakes near Curry County
Douglas County, OR 94 km (58 mi) N earthquakes near Douglas County
Siskiyou County, CA 106 km (66 mi) SSE earthquakes near Siskiyou County
Del Norte County, CA 106 km (66 mi) SW earthquakes near Del Norte County

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

Aftershocks so far

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

  1. 1.7 Oregon
  2. 1.6 19 km SW of Ashland, Oregon
  3. 1.6 4 km SE of Eagle Point, Oregon
  4. 1.5 17 km E of Glendale, Oregon
  5. 2.0 7 km WSW of Ashland, Oregon
  6. 1.6 3 km NW of Butte Falls, Oregon
  7. 1.8 5 km SSW of Shady Cove, Oregon
  8. 2.0 6 km NE of Medford, Oregon
  9. 1.8 5 km SE of Eagle Point, Oregon
  10. 1.8 7 km E of Ashland, Oregon
  11. 1.6 5 km SSW of Shady Cove, Oregon
  12. 2.1 5 km E of Medford, Oregon
  13. 1.6 Oregon
  14. 1.5 3 km WNW of Butte Falls, Oregon
  15. 1.9 3 km NW of Butte Falls, 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.