Earthquake · reviewed by a seismologist
M 2.5ml
Earthquake near Tillamook, OR
No earthquake was likely felt in Tillamook in the 24 hours to 3:54 pm PST (23:54 UTC). The last one was M 7.0, 573 km (356 mi) S, at 10:44 am PST on 5 December 2024, estimated intensity II (weak) in town; 16,883 felt reports to USGS. Every earthquake near Tillamook
This page: a magnitude 2.5 earthquake was recorded in Tillamook, OR, at 4:58 am PDT on 24 September 2022 (11:58 UTC), 18 km deep. 17 people have reported feeling it to USGS.
USGS: 1 km S of Tillamook, Oregon
94 km (58 mi) W of Portland, OR
- When
- 4:58 am PDT on 24 September 2022 ()
- Where
- in Tillamook, OR · earthquakes near Tillamook
- Magnitude
- M 2.5 (ml)
- Depth
- 18 km below the surface
- Felt
- 17 reports · strongest reported intensity III
- Nearest
- Tillamook County, 7 km E
- Nearest mapped fault
- Nehalem Bank 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 612 days ago
Earthquake alerts for Tillamook, OR
Get a notification in this browser when USGS records an earthquake near Tillamook, 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 13 km (8 mi) from the epicentre. 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.
Earthquakes near other towns within 30 km: Bay City, Rockaway Beach, Pacific City.
How big was it?
This earthquake released about 150 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 99,000× the energy of this one
- Magna, Utah 2020 M 5.7 70,000× the energy of this one
- Around the size people start to feel M 3.0 6.2× the energy of this one
- This earthquake M 2.5 about 150 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 45.4438, -123.8487. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Tillamook County, OR | 7 km (4 mi) | E | earthquakes near Tillamook County |
| Yamhill County, OR | 47 km (29 mi) | ESE | earthquakes near Yamhill County |
| Washington County, OR | 60 km (37 mi) | ENE | earthquakes near Washington County |
| Clatsop County, OR | 66 km (41 mi) | N | earthquakes near Clatsop County |
| Polk County, OR | 70 km (43 mi) | SSE | earthquakes near Polk County |
| Columbia County, OR | 81 km (51 mi) | NE | earthquakes near Columbia County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
35 earthquakes have been recorded within 50 km since this one.
- 1.6 26 km W of Banks, Oregon
- 1.7 27 km E of Wheeler, Oregon
- 1.3 3 km ESE of Rose Lodge, Oregon
- 1.9 21 km W of Forest Grove, Oregon
- 1.6 15 km ESE of Wheeler, Oregon
- 1.6 9 km E of Wheeler, Oregon
- 2.2 10 km W of Cape Meares, Oregon
- 1.6 2 km SW of Oceanside, Oregon
- 1.5 2 km NW of Sheridan, Oregon
- 1.6 24 km NNW of Sheridan, Oregon
- 1.6 13 km E of Wheeler, Oregon
- 2.0 16 km W of Forest Grove, Oregon
- 1.6 21 km W of Forest Grove, Oregon
- 1.5 8 km NNE of Nehalem, Oregon
- 1.6 16 km WNW of McMinnville, 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.