Earthquake · reviewed by a seismologist
M 2.0md
34km NE of Redway, CA
- When
- Magnitude
- M 2.0 (md)
- Depth
- 30 km below the surface
- Felt
- no reports yet
- Nearest
- Trinity County, 50 km NE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2727 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 31 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 5.8 480,000× the energy of this one
- Magna, Utah 2020 M 5.7 340,000× the energy of this one
- Around the size people start to feel M 3.0 31× the energy of this one
- This earthquake M 2.0 about 31 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 40.3170, -123.5177. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Trinity County, CA | 50 km (31 mi) | SW of here | earthquakes near Trinity County |
| Humboldt County, CA | 55 km (34 mi) | SE of here | earthquakes near Humboldt County |
| Mendocino County, CA | 99 km (61 mi) | N of here | earthquakes near Mendocino County |
| Tehama County, CA | 111 km (69 mi) | WNW of here | earthquakes near Tehama County |
| Glenn County, CA | 124 km (77 mi) | NW of here | earthquakes near Glenn County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
51 earthquakes have been recorded within 50 km since this one.
- 2.1 4km N of Redway, CA
- 1.7 5km ENE of Redway, CA
- 1.7 4km NW of Redway, CA
- 2.1 4km NW of Redway, CA
- 2.0 38km W of Hayfork, CA
- 3.1 3km NW of Redway, CA
- 2.2 20km SE of Rio Dell, CA
- 2.9 20km SE of Rio Dell, CA
- 1.8 19km SE of Rio Dell, CA
- 2.6 41km S of Hayfork, CA
- 2.7 37km SSE of Hayfork, CA
- 1.6 9km ESE of Hydesville, CA
- 2.9 16km N of Redway, CA
- 2.0 3km NNW of Redway, CA
- 1.5 4km N of Redway, 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.
For this area
The largest earthquake within 50 km in our catalogue was M 4.5 on 2016-08-28 — it released about 5,200 times the energy of this one.
From the QuakeIndex catalogue, built from the USGS FDSN event service.
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.