M2.4 earthquake 13 km NW of Ault Field, Washington
A magnitude 2.4 earthquake struck 13 km NW of Ault Field, Washington on Sat, Oct 30, 1971, 5:53 PM PDT (00:53 UTC), 31 km (19 mi) below the surface.
A larger quake followed: M3.1 1 km ESE of Swede Heaven, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.4 (md), micro
- Local time
- UTC
- 1971-10-31 00:53:31 UTC
- Depth
- 31.0 km (19.3 mi), shallow
- Epicenter
- 48.419° N, 122.815° W
- Region
- Washington
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 3.2 km horizontally, 3.9 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 310°, poorly surrounded by stations
- Stations used
- 5
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 5 in the 30 days before it.
After
- 3.11 km ESE of Swede Heaven, Washington · 20039 days ago · 9 km deep · 83 km away
- 2.80 km ESE of Mukilteo, Washington · 20035 days ago · 62 km deep · 65 km away
- 1.51 km SW of Mountlake Terrace, Washington · 20030 days ago · 27 km deep · 80 km away
- 1.91 km SSE of Kingsgate, Washington · 20014 days ago · 14 km deep · 91 km away
- 2.26 km S of Seabeck, Washington · 20012 days ago · 21 km deep · 93 km away
- 2.00 km WNW of Kingston, Washington · 20008 days ago · 10 km deep · 72 km away
- 2.65 km ESE of Freeland, Washington · 19999 days ago · 17 km deep · 54 km away
- 3.49 km NNW of Belfair, Washington · 19998 days ago · 17 km deep · 99 km away
- 1.80 km SE of Kingsgate, Washington · 19995 days ago · 17 km deep · 91 km away
- 2.24 km W of Chico, Washington · 19993 days ago · 21 km deep · 90 km away
- 1.74 km W of Chico, Washington · 19993 days ago · 20 km deep · 89 km away
Before
- 3.05 km N of Bangor Trident Base, Washington · 20053 days ago · 54 km deep · 72 km away
- 2.81 km ENE of Keyport, Washington · 20061 days ago · 21 km deep · 81 km away
- 2.42 km WSW of Suquamish, Washington · 20065 days ago · 18 km deep · 79 km away
- 2.112 km NW of Port Townsend, Washington · 20069 days ago · 28 km deep · 26 km away
- 3.220 km NNE of Jamestown, Washington · 20077 days ago · 23 km deep · 18 km away
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10851848. Read Tue, Sep 22, 2026, 11:32 PM UTC.