QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

Earthquake near Montague, CA

USGS: 3km NNW of Montague, CA

5:03 pm PDT, Jun 11, 2018 · · 13 km deep · released about 62 lb of TNT

Every earthquake near Montague Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Siskiyou County 18 kmJackson County 74 kmJosephine County 110 kmShasta County 118 kmDel Norte County 119 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
5:03 pm PDT on 11 June 2018 ()
Where
3 km (2 mi) NNW of Montague, CA · earthquakes near Montague
Magnitude
M 2.2 (md)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Siskiyou County, 18 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3028 days ago

A magnitude 2.2 earthquake was recorded 3 km (2 mi) NNW of Montague, CA, at 5:03 pm PDT on 11 June 2018 (00:03 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Yreka.

How big was it?

This earthquake released about 62 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 240,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 170,000× the energy of this one
  3. Around the size people start to feel M 3.0 15× the energy of this one
  4. This earthquake M 2.2 about 62 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 41.7533, -122.5412. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Siskiyou County, CA 18 km (11 mi) S earthquakes near Siskiyou County
Jackson County, OR 74 km (46 mi) N earthquakes near Jackson County
Josephine County, OR 110 km (69 mi) NW earthquakes near Josephine County
Shasta County, CA 118 km (73 mi) SSE earthquakes near Shasta County
Del Norte County, CA 119 km (74 mi) W earthquakes near Del Norte County
Klamath County, OR 127 km (79 mi) NE earthquakes near Klamath County

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

Aftershocks so far

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

  1. 1.6 13 km SW of Ashland, Oregon
  2. 1.7 9km E of Carrick, CA
  3. 1.8 13km ENE of Carrick, CA
  4. 2.1 0km NE of Etna, CA
  5. 1.6 4km W of Edgewood, CA
  6. 2.6 23km SW of Mount Hebron, CA
  7. 2.6 25km ENE of Hornbrook, CA
  8. 1.8 21 km WNW of Dorris, California
  9. 1.7 17 km SW of Ashland, Oregon
  10. 1.8 18 km SW of Ashland, Oregon
  11. 3.1 19 km SW of Ashland, Oregon
  12. 1.7 9 km E of Ashland, Oregon
  13. 3.2 18 km SW of Ashland, Oregon
  14. 1.8 22km ENE of Montague, CA
  15. 1.7 10km W of Dorris, CA

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.