Earthquake · reviewed by a seismologist
M 2.9ml
Earthquake near Brookings, OR
No earthquake was likely felt in Brookings in the 24 hours to 7:22 pm PST (03:22 UTC). The last one was M 1.7, in Brookings, at 1:29 pm PDT on 23 October 2026, estimated intensity II (weak) in town. Every earthquake near Brookings
This page: a magnitude 2.9 earthquake was recorded 33 km (20 mi) northwest of Brookings, OR, at 12:00 am PDT on 21 September 2024 (07:00 UTC), 21 km deep. 4 people have reported feeling it to USGS.
USGS: 14 km W of Pistol River, Oregon
- When
- 12:00 am PDT on 21 September 2024 ()
- Where
- 33 km (20 mi) northwest of Brookings, OR · earthquakes near Brookings
- Magnitude
- M 2.9 (ml)
- Depth
- 21 km below the surface
- Felt
- 4 reports · strongest reported intensity III
- Nearest
- Curry County, 37 km NE
- Nearest mapped fault
- Cascadia fold and fault belt, 13 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 719 days ago
Earthquake alerts for Brookings, OR
Get a notification in this browser when USGS records an earthquake near Brookings, OR. 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 small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 26 km (16 mi) from the epicentre. In Brookings, 33 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.
Likely felt in: Gold Beach 20 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 780 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 19,000× the energy of this one
- Magna, Utah 2020 M 5.7 14,000× the energy of this one
- Around the size people start to feel M 3.0 1.2× the energy of this one
- This earthquake M 2.9 about 780 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 since 1900 lists no earthquake of M5 or more within 50 km.
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 42.2597, -124.5663. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Curry County, OR | 37 km (23 mi) | NE | earthquakes near Curry County |
| Del Norte County, CA | 75 km (46 mi) | SE | earthquakes near Del Norte County |
| Josephine County, OR | 83 km (52 mi) | E | earthquakes near Josephine County |
| Coos County, OR | 110 km (68 mi) | NNE | earthquakes near Coos County |
| Douglas County, OR | 162 km (101 mi) | NE | earthquakes near Douglas 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.
- 1.7 1 km NW of Brookings, Oregon
- 1.6 11 km NNE of Nesika Beach, Oregon
- 0.7 17 km W of Pistol River, Oregon
- 1.6 23 km WSW of Brookings, Oregon
- 1.7 6 km E of Pistol River, Oregon
- 2.3 7 km E of Pistol River, Oregon
- 1.9 6 km E of Pistol River, Oregon
- 1.6 7 km ESE of Pistol River, Oregon
- 1.6 6 km E of Pistol River, Oregon
- 1.8 6 km E of Pistol River, Oregon
- 1.6 8 km E of Pistol River, Oregon
- 1.8 10 km NNE of Nesika Beach, Oregon
- 1.5 58 km WSW of Pistol River, Oregon
- 1.7 7 km E of Pistol River, Oregon
- 1.8 15 km SSW of Pistol River, Oregon
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.