Earthquake · reviewed by a seismologist
M 1.5ml
Earthquake near Port Orford, OR
USGS: 20 km W of Port Orford, Oregon
- When
- 7:38 am PDT on 16 October 2024 ()
- Where
- 21 km (13 mi) W of Port Orford, OR · earthquakes near Port Orford
- Magnitude
- M 1.5 (ml)
- Depth
- 8.9 km below the surface
- Felt
- no reports yet
- Nearest
- Curry County, 52 km ESE
- Nearest mapped fault
- Cascadia fold and fault belt, under 1 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 716 days ago
A magnitude 1.5 earthquake was recorded 21 km (13 mi) W of Port Orford, OR, at 7:38 am PDT on 16 October 2024 (14:38 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
How big was it?
This earthquake released about 5.7 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,600,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
- Around the size people start to feel M 3.0 170× the energy of this one
- This earthquake M 1.5 about 5.7 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 4.5 on 2019-11-30 — about 33,000 times the energy of this one.
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 42.7140, -124.7448. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Curry County, OR | 52 km (32 mi) | ESE | earthquakes near Curry County |
| Coos County, OR | 75 km (46 mi) | NE | earthquakes near Coos County |
| Josephine County, OR | 103 km (64 mi) | ESE | earthquakes near Josephine County |
| Del Norte County, CA | 124 km (77 mi) | SSE | earthquakes near Del Norte County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
21 earthquakes have been recorded within 50 km since this one.
- 0.7 17 km W of Pistol River, Oregon
- 2.0 48 km WSW of Port Orford, Oregon
- 1.8 10 km NNE of Nesika Beach, Oregon
- 2.5 42 km W of Port Orford, Oregon
- 1.7 12 km SSE of Port Orford, Oregon
- 2.6 10 km NW of Langlois, Oregon
- 2.1 11 km S of Port Orford, Oregon
- 1.9 12 km NW of Nesika Beach, Oregon
- 2.4 12 km SSE of Port Orford, Oregon
- 2.6 11 km SSE of Port Orford, Oregon
- 3.1 12 km SSE of Port Orford, Oregon
- 1.7 11 km SSE of Port Orford, Oregon
- 1.5 6 km SE of Gold Beach, Oregon
- 1.6 14 km NW of Nesika Beach, Oregon
- 2.2 46 km WSW of Port Orford, 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.