QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

Earthquake near Gold Beach, OR

USGS: 11 km ENE of Nesika Beach, Oregon

2:47 pm PST, Nov 20, 2017 · · -0.6 km deep · released about 43 lb of TNT

10 km30 km60 km120 km N Curry County 12 kmJosephine County 62 kmCoos County 71 kmDel Norte County 94 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
2:47 pm PST on 20 November 2017 ()
Where
20 km (13 mi) NNE of Gold Beach, OR · earthquakes near Gold Beach
Magnitude
M 2.1 (ml)
Depth
-0.6 km below the surface
Felt
no reports yet
Nearest
Curry County, 12 km SSE
Nearest mapped fault
Cascadia fold and fault belt, 17 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3237 days ago

A magnitude 2.1 earthquake was recorded 20 km (13 mi) NNE of Gold Beach, OR, at 2:47 pm PST on 20 November 2017 (22:47 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Port Orford.

How big was it?

This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 42.5600, -124.2885. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Curry County, OR 12 km (8 mi) SSE earthquakes near Curry County
Josephine County, OR 62 km (38 mi) ESE earthquakes near Josephine County
Coos County, OR 71 km (44 mi) NNE earthquakes near Coos County
Del Norte County, CA 94 km (58 mi) SSE earthquakes near Del Norte County
Douglas County, OR 123 km (76 mi) NE earthquakes near Douglas 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. 1.6 4 km W of Powers, Oregon
  2. 2.0 9 km SW of Langlois, Oregon
  3. 1.6 15 km SW of Pistol River, Oregon
  4. 1.9 6 km S of Gold Beach, Oregon
  5. 1.9 20 km W of Pistol River, Oregon
  6. 1.7 9 km E of Pistol River, Oregon
  7. 3.0 6 km E of Pistol River, Oregon
  8. 2.8 6 km E of Pistol River, Oregon
  9. 2.9 9 km E of Pistol River, Oregon
  10. 2.2 9 km S of Pistol River, Oregon
  11. 1.6 16 km SW of Pistol River, Oregon
  12. 1.5 18 km W of Pistol River, Oregon
  13. 1.7 19 km W of Pistol River, Oregon
  14. 1.8 9 km SE of Pistol River, Oregon
  15. 1.6 9 km SW of Langlois, 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.