QuakeIndex

explosion · reviewed by a seismologist

M 1.9ml

7 km NE of Harbor, Oregon

· -0.7 km deep · released about 19 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Curry County 41 kmDel Norte County 43 kmJosephine County 60 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
Magnitude
M 1.9 (ml)
Depth
-0.7 km below the surface
Felt
no reports yet
Nearest
Curry County, 41 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 121 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 19 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 5.8 790,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 560,000× the energy of this one
  3. Around the size people start to feel M 3.0 50× the energy of this one
  4. This earthquake M 1.9 about 19 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.

Where

Epicentre 42.1003, -124.1953. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Curry County, OR 41 km (25 mi) S of here earthquakes near Curry County
Del Norte County, CA 43 km (27 mi) NNW of here earthquakes near Del Norte County
Josephine County, OR 60 km (38 mi) WSW of here earthquakes near Josephine County

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

Aftershocks so far

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

  1. 0.7 17 km W of Pistol River, Oregon
  2. 1.6 23 km WSW of Brookings, Oregon
  3. 1.7 6 km E of Pistol River, Oregon
  4. 2.3 7 km E of Pistol River, Oregon
  5. 1.9 6 km E of Pistol River, Oregon
  6. 1.6 7 km ESE of Pistol River, Oregon
  7. 1.6 6 km E of Pistol River, Oregon
  8. 1.8 6 km E of Pistol River, Oregon
  9. 1.6 8 km E of Pistol River, Oregon
  10. 1.7 7 km E of Pistol River, Oregon
  11. 1.8 15 km SSW of Pistol River, 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.