QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

2 km E of Kamiah, Idaho

· 6.9 km deep · released about 8.1 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lewis County 33 kmClearwater County 56 kmIdaho County 58 kmNez Perce County 60 kmLatah County 87 kmAsotin County 95 kmWallowa 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
Magnitude
M 1.6 (ml)
Depth
6.9 km below the surface
Felt
no reports yet
Nearest
Lewis County, 33 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2710 days ago

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

How big was it?

This earthquake released about 8.1 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 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 8.1 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 46.2288, -115.9918. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lewis County, ID 33 km (21 mi) E of here earthquakes near Lewis County
Clearwater County, ID 56 km (35 mi) SSW of here earthquakes near Clearwater County
Idaho County, ID 58 km (36 mi) NW of here earthquakes near Idaho County
Nez Perce County, ID 60 km (37 mi) E of here earthquakes near Nez Perce County
Latah County, ID 87 km (54 mi) SE of here earthquakes near Latah County
Asotin County, WA 95 km (59 mi) E of here earthquakes near Asotin County

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

Aftershocks so far

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

  1. 2.2 4 km SSE of Grangeville, Idaho
  2. 2.1 7 km SSW of Orofino, Idaho
  3. 2.2 11 km SE of Weippe, Idaho
  4. 1.7 28 km ESE of Weippe, Idaho
  5. 1.7 Northern Idaho
  6. 1.5 7 km WNW of Grangeville, Idaho
  7. 2.0 4 km E of Peck, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.1 on 2018-11-20 — it released about 5,200 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.