Earthquake · automatic estimate, may change
M 2.5md
Earthquake near Klamath Falls, OR
No earthquake was likely felt in Klamath Falls in the 24 hours to 7:38 pm PST (03:38 UTC). The last one was M 1.9, 10 km (7 mi) NNW, at 1:58 pm PDT on 13 August 2026, estimated intensity II (weak) in town. Every earthquake near Klamath Falls
This page: a magnitude 2.5 earthquake was recorded 47 km (29 mi) south-southwest of Klamath Falls, OR, at 3:21 am PST on 28 December 2024 (11:21 UTC), 10 km deep. The magnitude and location are an automatic first estimate and may change.
USGS: 6 km NW of Macdoel, CA
- When
- 3:21 am PST on 28 December 2024 ()
- Where
- 47 km (29 mi) south-southwest of Klamath Falls, OR · earthquakes near Klamath Falls
- Magnitude
- M 2.5 (md)
- Depth
- 10 km below the surface
- Felt
- no reports yet
- Nearest
- Siskiyou County, 49 km SW
- Nearest mapped fault
- Cedar Mountain fault system, 3 km from its surface trace — near is not the same as on
- Status
- Automatic — a machine’s first estimate, which may change
USGS · last changed by USGS · we first saw it 684 days ago
Earthquake alerts for Klamath Falls, OR
Get a notification in this browser when USGS records an earthquake near Klamath Falls, 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 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 19 km (12 mi) from the epicentre. In Klamath Falls, 47 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 140 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 110,000× the energy of this one
- Magna, Utah 2020 M 5.7 75,000× the energy of this one
- Around the size people start to feel M 3.0 6.7× the energy of this one
- This earthquake M 2.5 about 140 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 lists one earthquake of M5 or more within 50 km:
- 5.1 20 km WNW of Klamath Falls, Oregon · 48 km N 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 41.8627, -122.0650. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Siskiyou County, CA | 49 km (31 mi) | SW | earthquakes near Siskiyou County |
| Jackson County, OR | 79 km (49 mi) | NW | earthquakes near Jackson County |
| Klamath County, OR | 98 km (61 mi) | NNE | earthquakes near Klamath County |
| Modoc County, CA | 116 km (72 mi) | ESE | earthquakes near Modoc County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
17 earthquakes have been recorded within 50 km since this one.
- 3.3 8 km NE of Gazelle, CA
- 2.0 13 km SSW of Tennant, CA
- 1.0 18 km WNW of Klamath Falls, Oregon
- 2.1 5 km SSW of Merrill, Oregon
- 2.0 26 km ENE of Hornbrook, CA
- 2.2 5 km W of Merrill, Oregon
- 1.9 24 km E of Tennant, CA
- 2.1 13 km SSE of Tennant, CA
- 2.0 13 km SSE of Tennant, CA
- 1.9 13 km SSE of Tennant, CA
- 1.9 16 km SSW of Tennant, CA
- 1.8 16 km SSW of Tennant, CA
- 2.6 23 km WSW of Mount Hebron, CA
- 1.6 23 km WSW of Klamath Falls, Oregon
- 2.1 4 km SW of Tennant, 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.