Earthquake · reviewed by a seismologist
M 2.0md
Earthquake near Covelo, CA
No earthquake was likely felt in Covelo in the 24 hours to 2:56 am PST (10:56 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 2.0 earthquake was recorded 37 km (23 mi) north-northeast of Covelo, CA, at 8:09 pm PDT on 6 July 2018 (03:09 UTC), 41 km deep.
USGS: 37km NNE of Covelo, CA
- When
- 8:09 pm PDT on 6 July 2018 ()
- Where
- 37 km (23 mi) north-northeast of Covelo, CA · earthquakes near Covelo
- Magnitude
- M 2.0 (md)
- Depth
- 41 km below the surface
- Felt
- no reports yet
- Nearest
- Trinity County, 61 km N
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3047 days ago
Earthquake alerts for Covelo, CA
Get a notification in this browser when USGS records an earthquake near Covelo, CA. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth it was probably too small to be felt, even directly above it. In Covelo, 37 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 33 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.
- Mineral, Virginia 2011 M 5.8 450,000× the energy of this one
- Magna, Utah 2020 M 5.7 320,000× the energy of this one
- Around the size people start to feel M 3.0 29× the energy of this one
- This earthquake M 2.0 about 33 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
The largest earthquake within 50 km since 2016 was M 4.5 on 2016-08-28 — about 4,900 times the energy of this one.
Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:
- 5.5 33 km NW of Rancho Tehama Reserve, California · 32 km ENE 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 40.0968, -123.0600. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Trinity County, CA | 61 km (38 mi) | N | earthquakes near Trinity County |
| Tehama County, CA | 70 km (44 mi) | E | earthquakes near Tehama County |
| Glenn County, CA | 79 km (49 mi) | SE | earthquakes near Glenn County |
| Mendocino County, CA | 81 km (50 mi) | SSW | earthquakes near Mendocino County |
| Humboldt County, CA | 100 km (62 mi) | NW | earthquakes near Humboldt County |
| Lake County, CA | 113 km (70 mi) | SSE | earthquakes near Lake County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
42 earthquakes have been recorded within 50 km since this one.
- 1.7 30km NE of Covelo, CA
- 1.7 36km NNW of Alder Springs, CA
- 1.5 14km SE of Covelo, CA
- 1.6 34km WNW of Rancho Tehama Reserve, CA
- 1.5 36km N of Covelo, CA
- 2.0 34km NE of Redway, CA
- 1.6 22km NW of Alder Springs, CA
- 2.7 33km SW of Hayfork, CA
- 2.0 19km W of Rancho Tehama Reserve, CA
- 2.1 32km NNW of Covelo, CA
- 1.8 34km ENE of Covelo, CA
- 1.9 21km N of Laytonville, CA
- 2.0 34km SW of Hayfork, CA
- 1.8 15km NW of Alder Springs, CA
- 1.9 30km SW of Hayfork, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.