Earthquake · reviewed by a seismologist
M 1.6md
Earthquake near Redway, CA
No earthquake was likely felt in Redway in the 24 hours to 4:46 am PST (12:46 UTC). The last one was M 5.0, 153 km (95 mi) WNW, at 8:56 pm PST on 4 November 2026, estimated intensity II (weak) in town; 145 felt reports to USGS. Every earthquake near Redway
This page: a magnitude 1.6 earthquake was recorded 22 km (14 mi) north of Redway, CA, at 9:53 am PDT on 29 July 2026 (16:53 UTC), 8.5 km deep.
USGS: 22 km N of Redway, CA
- When
- 9:53 am PDT on 29 July 2026 ()
- Where
- 22 km (14 mi) north of Redway, CA · earthquakes near Redway
- Magnitude
- M 1.6 (md)
- Depth
- 8.5 km below the surface
- Felt
- no reports yet
- Nearest
- Humboldt County, 44 km NNW
- Nearest mapped fault
- Little Salmon fault, 17 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 94 days ago
Earthquake alerts for Redway, CA
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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, people at rest would likely notice it out to about 7 km (4 mi) from the epicentre. In Redway, 22 km away, the estimate is intensity II (weak). 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 7.1 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.
- Mineral, Virginia 2011 M 5.8 2,100,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
- Around the size people start to feel M 3.0 130× the energy of this one
- This earthquake M 1.6 about 7.1 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 6.2 on 2021-12-20 — about 8,500,000 times the energy of this one.
Before 2016, the USGS record lists 18 earthquakes of M5 or more within 50 km; the five largest:
- 7.2 The 1992 Petrolia, California Earthquake · 35 km W of this epicentre
- 6.0 Near Rio Dell, California · 38 km WNW of this epicentre
- 6.0 31 km NW of Shelter Cove, California · 44 km WSW of this epicentre
- 6.0 30 km SSW of Scotia, California · 40 km W of this epicentre
- 5.6 15 km SW of Burnt Ranch, California · 48 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 40.3163, -123.8190. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Humboldt County, CA | 44 km (28 mi) | NNW | earthquakes near Humboldt County |
| Trinity County, CA | 70 km (44 mi) | ENE | earthquakes near Trinity County |
| Mendocino County, CA | 103 km (64 mi) | SSE | earthquakes near Mendocino County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
57 earthquakes have been recorded within 50 km since this one.
- 1.5 4 km WSW of Petrolia, CA
- 2.0 19 km SSE of Blue Lake, CA
- 1.8 31 km NW of Covelo, CA
- 2.3 16 km SSW of Ferndale, CA
- 1.7 16 km SE of Petrolia, CA
- 1.5 15 km SE of Petrolia, CA
- 1.5 14 km SE of Petrolia, CA
- 1.1 14 km SE of Petrolia, CA
- 1.8 13 km SE of Petrolia, CA
- 1.7 14 km SE of Petrolia, CA
- 3.3 14 km SE of Petrolia, CA
- 2.3 30 km NNW of Covelo, CA
- 1.6 22 km NE of Rockport, CA
- 1.8 12 km WSW of Rio Dell, CA
- 1.3 35 km NE 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.
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.