explosion · reviewed by a seismologist
M 1.6ml
Earthquake near Forks, WA
USGS: 23 km ENE of Forks, Washington
- When
- 1:55 pm PDT on 29 July 2024 ()
- Where
- 23 km (15 mi) ENE of Forks, WA · earthquakes near Forks
- Magnitude
- M 1.6 (ml)
- Depth
- -0.4 km below the surface
- Felt
- no reports yet
- Nearest
- Clallam County, 18 km ENE
- Nearest mapped fault
- Calawah fault, 3 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 795 days ago
A magnitude 1.6 earthquake was recorded 23 km (15 mi) ENE of Forks, WA, at 1:55 pm PDT on 29 July 2024 (20:55 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
USGS catalogues this as explosion, not an earthquake.
How big was it?
This earthquake released about 6.4 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 2,400,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
- Around the size people start to feel M 3.0 150× the energy of this one
- This earthquake M 1.6 about 6.4 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 48.0580, -124.1147. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Clallam County, WA | 18 km (11 mi) | ENE | earthquakes near Clallam County |
| Jefferson County, WA | 52 km (32 mi) | ESE | earthquakes near Jefferson County |
| San Juan County, WA | 90 km (56 mi) | NE | earthquakes near San Juan County |
| Mason County, WA | 106 km (66 mi) | SE | earthquakes near Mason County |
| Grays Harbor County, WA | 107 km (67 mi) | SSE | earthquakes near Grays Harbor County |
| Island County, WA | 108 km (67 mi) | E | earthquakes near Island County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
27 earthquakes have been recorded within 50 km since this one.
- 1.0 34 km SSW of Port Angeles, Washington
- 0.8 14 km W of Sekiu, Washington
- 0.6 12 km SSE of Neah Bay, Washington
- 0.7 12 km SSE of Neah Bay, Washington
- 1.6 16 km NNW of Queets, Washington
- 1.5 19 km NNW of Forks, Washington
- 1.7 12 km S of Forks, Washington
- 1.6 11 km E of Forks, Washington
- 1.6 20 km N of Queets, Washington
- 1.6 4 km WSW of Forks, Washington
- 3.7 17 km NNW of Sekiu, Washington
- 1.9 21 km NNW of Forks, Washington
- 1.8 21 km NNW of Forks, Washington
- 1.6 4 km WSW of Forks, Washington
- 1.6 31 km NNW of Amanda Park, Washington
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.