QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

Earthquake near Covelo, CA

No earthquake was likely felt in Covelo in the 24 hours to 9:36 pm PST (05:36 UTC). The last one was M 2.2, 9 km (6 mi) N, at 3:31 pm PST on 10 November 2026, estimated intensity II (weak) in town. Every earthquake near Covelo

This page: a magnitude 1.6 earthquake was recorded 34 km (21 mi) east of Covelo, CA, at 2:35 pm PDT on 10 June 2017 (21:35 UTC), 2.7 km deep.

USGS: 28 km WSW of Paskenta, California

2:35 pm PDT, Jun 10, 2017 · · 2.7 km deep · released about 7.6 lb of TNT

10 km30 km60 km120 km N Glenn County 44 kmMendocino County 64 kmTehama County 65 kmLake County 76 kmColusa County 86 kmTrinity County 98 kmButte County 108 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
2:35 pm PDT on 10 June 2017 ()
Where
34 km (21 mi) east of Covelo, CA · earthquakes near Covelo
Magnitude
M 1.6 (md)
Depth
2.7 km below the surface
Felt
no reports yet
Nearest
Glenn County, 44 km ESE
Nearest mapped fault
Bartlett Springs fault system, 15 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 3439 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 11 km (7 mi) from the epicentre. In Covelo, 34 km away, the estimate is intensity I (not felt). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 7.6 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 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 lists one earthquake of M5 or more within 50 km:

  1. 5.5 33 km NW of Rancho Tehama Reserve, California · 47 km NNE of this epicentre

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 39.7875, -122.8540. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Glenn County, CA 44 km (27 mi) ESE earthquakes near Glenn County
Mendocino County, CA 64 km (40 mi) SW earthquakes near Mendocino County
Tehama County, CA 65 km (40 mi) NE earthquakes near Tehama County
Lake County, CA 76 km (47 mi) S earthquakes near Lake County
Colusa County, CA 86 km (53 mi) SE earthquakes near Colusa County
Trinity County, CA 98 km (61 mi) NNW earthquakes near Trinity County

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

Aftershocks so far

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

  1. 1.7 27km WSW of Rancho Tehama Reserve, CA
  2. 1.5 34 km WNW of Rancho Tehama Reserve, California
  3. 1.5 34 km WNW of Rancho Tehama Reserve, California
  4. 2.4 15 km SW of Paskenta, California
  5. 1.6 15 km SW of Paskenta, California
  6. 1.5 24 km SE of Covelo, California
  7. 1.8 8 km ENE of Covelo, California
  8. 1.5 27 km WNW of Paskenta, California
  9. 1.5 4 km NNW of Covelo, California
  10. 1.7 20 km W of Stonyford, California
  11. 1.7 14 km NNE of Brooktrails, California
  12. 1.7 5 km NW of Covelo, California
  13. 1.8 17 km NE of Potter Valley, California
  14. 1.6 near the coast of Northern California
  15. 2.4 5 km WNW of Covelo, California

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.