QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

Earthquake near Joseph, OR

USGS: 41 km NW of New Meadows, Idaho

6:34 am PDT, Oct 13, 2018 · · 4.8 km deep · released about 31 lb of TNT

Every earthquake near Joseph Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Adams County 39 kmWallowa County 59 kmWashington County 81 kmBaker County 93 kmValley County 93 kmUnion County 101 kmAsotin County 119 kmLewis County 120 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
6:34 am PDT on 13 October 2018 ()
Where
45 km (28 mi) ESE of Joseph, OR · earthquakes near Joseph
Magnitude
M 2.0 (ml)
Depth
4.8 km below the surface
Felt
no reports yet
Nearest
Adams County, 39 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1968 days ago

A magnitude 2.0 earthquake was recorded 45 km (28 mi) ESE of Joseph, OR, at 6:34 am PDT on 13 October 2018 (13:34 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 31 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 480,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 340,000× the energy of this one
  3. Around the size people start to feel M 3.0 31× the energy of this one
  4. This earthquake M 2.0 about 31 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 45.1775, -116.7165. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Adams County, ID 39 km (24 mi) SSE earthquakes near Adams County
Wallowa County, OR 59 km (37 mi) NW earthquakes near Wallowa County
Washington County, ID 81 km (51 mi) S earthquakes near Washington County
Baker County, OR 93 km (58 mi) SW earthquakes near Baker County
Valley County, ID 93 km (58 mi) ESE earthquakes near Valley County
Union County, OR 101 km (63 mi) W earthquakes near Union County

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

Aftershocks so far

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

  1. 2.3 9 km E of Halfway, Oregon
  2. 2.1 17 km NNW of Halfway, Oregon
  3. 1.9 17 km NW of New Meadows, Idaho
  4. 2.1 19 km NNW of Halfway, Oregon
  5. 2.2 11 km ESE of Halfway, Oregon
  6. 1.5 20 km NW of New Meadows, Idaho
  7. 2.0 17 km NW of New Meadows, Idaho
  8. 2.4 21 km NW of New Meadows, Idaho
  9. 2.3 13 km NNW of New Meadows, Idaho
  10. 1.9 23 km ESE of Halfway, Oregon
  11. 2.3 19 km NW of New Meadows, Idaho
  12. 2.0 33 km NE of Halfway, Oregon
  13. 1.8 11 km ESE of Halfway, Oregon
  14. 2.3 15 km SE of Halfway, Oregon
  15. 1.8 5 km NNW of New Meadows, Idaho

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.