Earthquake · reviewed by a seismologist
M 1.8md
13km N of McCloud, CA
- When
- Magnitude
- M 1.8 (md)
- Depth
- 4.5 km below the surface
- Felt
- no reports yet
- Nearest
- Siskiyou County, 41 km NW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2578 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 13 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
- Magna, Utah 2020 M 5.7 810,000× the energy of this one
- Around the size people start to feel M 3.0 72× the energy of this one
- This earthquake M 1.8 about 13 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 41.3762, -122.1290. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Siskiyou County, CA | 41 km (26 mi) | SE of here | earthquakes near Siskiyou County |
| Shasta County, CA | 69 km (43 mi) | N of here | earthquakes near Shasta County |
| Trinity County, CA | 116 km (72 mi) | NE of here | earthquakes near Trinity County |
| Modoc County, CA | 120 km (75 mi) | W of here | earthquakes near Modoc County |
| Jackson County, OR | 124 km (77 mi) | SSE of here | earthquakes near Jackson County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
52 earthquakes have been recorded within 50 km since this one.
- 1.8 6km NE of Dunsmuir, CA
- 1.7 6km NE of Dunsmuir, CA
- 1.6 6km NE of Dunsmuir, CA
- 1.8 15km NE of McCloud, CA
- 1.7 9km E of Carrick, CA
- 1.7 14km N of Big Bend, CA
- 1.9 16km NW of Big Bend, CA
- 1.9 8km NNE of McCloud, CA
- 2.0 11km N of Tennant, CA
- 1.8 21km ENE of McCloud, CA
- 1.6 15km SSE of McCloud, CA
- 2.2 21km ENE of McCloud, CA
- 1.8 13km ENE of Carrick, CA
- 2.0 7km ESE of McCloud, CA
- 1.6 4km W of Edgewood, 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.