QuakeIndex

Every recorded earthquake within 30 km

Earthquakes near Longbranch, WA

No earthquake was likely felt in Longbranch in the 24 hours to 8:33 am PST (16:33 UTC). The last one was M 4.2, 21 km (13 mi) N, at 2:05 pm PDT on 29 September 2026, estimated intensity III (weak) in town; 9,329 felt reports to USGS.

M 4.2

Latest: 2:05 pm PDT on 29 September 2026 · 21 km (13 mi) N of Longbranch, WA

The most recent earthquake of M2.5 or more near Longbranch was M 4.2, 21 km (13 mi) N of Longbranch, WA, at 2:05 pm PDT on 29 September 2026, 28 km deep. 9,329 people reported feeling it to USGS. The estimated shaking in Longbranch was intensity III (weak), felt by some people at rest indoors. 3 smaller earthquakes have been recorded near Longbranch since; the newest is first in the list below.

No earthquake of M1.5 or more was recorded within 30 km (19 mi) of Longbranch in the last 24 hours.

Last 24 hours
0
Last 7 days
0
Last 30 days
1 · an average 30 days here since 2016: 1.1
Last 12 months
21 · largest M 4.2 on 29 September 2026
Since 2016
144 earthquakes of M1.5 or more within 30 km
Largest since 2016
M 4.2 on 29 September 2026, 21 km (13 mi) N of Longbranch, WA
Reported felt
34 of them have felt reports to USGS
Nearest mapped fault
Olympia structure, 14 km from its surface trace

USGS · feed checked · newest earthquake in our database · this page · counts are earthquakes of M1.5 or more within 30 km (19 mi) of the town centre; shaking is estimated for the town centre with the intensity equation USGS Did You Feel It? uses

If you felt one

QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.

The last 30 days

Oct 14 Oct 29 Nov 12
Each mark is a day's largest quake within range; its size is the magnitude. The shaded band is the magnitude a day's largest quake normally falls in here (M1.6–M2.0), from this place's own 10-year record. A mark above the band is a bigger day than usual.

The latest 50

  1. 1.9 26 km (16 mi) N of Longbranch, WA
  2. 1.6 23 km (14 mi) N of Longbranch, WA
  3. 1.9 22 km (14 mi) N of Longbranch, WA · felt by 3
  4. 4.2 21 km (13 mi) N of Longbranch, WA · felt by 9,329
  5. 2.2 19 km (12 mi) NNE of Longbranch, WA · felt by 1
  6. 1.5 30 km (19 mi) N of Longbranch, WA
  7. 1.6 27 km (17 mi) SW of Longbranch, WA
  8. 1.7 26 km (16 mi) E of Longbranch, WA
  9. 1.6 12 km (7 mi) NNW of Longbranch, WA
  10. 2.8 19 km (12 mi) NNE of Longbranch, WA · felt by 63
  11. 1.6 27 km (17 mi) WSW of Longbranch, WA
  12. 1.6 28 km (18 mi) W of Longbranch, WA
  13. 1.7 27 km (17 mi) NE of Longbranch, WA
  14. 1.5 29 km (18 mi) WSW of Longbranch, WA
  15. 2.4 29 km (18 mi) N of Longbranch, WA · felt by 1
  16. 1.7 29 km (18 mi) WSW of Longbranch, WA
  17. 2.9 8 km (5 mi) NNW of Longbranch, WA · felt by 38
  18. 1.5 26 km (16 mi) ENE of Longbranch, WA · felt by 1
  19. 1.8 29 km (18 mi) N of Longbranch, WA
  20. 1.6 12 km (7 mi) WNW of Longbranch, WA
  21. 1.6 27 km (17 mi) W of Longbranch, WA
  22. 1.5 29 km (18 mi) WSW of Longbranch, WA
  23. 1.6 28 km (17 mi) NNW of Longbranch, WA
  24. 1.6 12 km (7 mi) WNW of Longbranch, WA
  25. 1.6 28 km (17 mi) WSW of Longbranch, WA
  26. 2.1 8 km (5 mi) NNE of Longbranch, WA
  27. 1.6 27 km (17 mi) W of Longbranch, WA
  28. 1.6 28 km (18 mi) WSW of Longbranch, WA
  29. 1.6 29 km (18 mi) N of Longbranch, WA
  30. 3.2 29 km (18 mi) NE of Longbranch, WA · felt by 1,291
  31. 1.6 28 km (17 mi) WSW of Longbranch, WA
  32. 1.9 21 km (13 mi) E of Longbranch, WA · felt by 1
  33. 1.7 25 km (16 mi) ESE of Longbranch, WA · felt by 1
  34. 1.6 28 km (17 mi) WSW of Longbranch, WA
  35. 1.6 26 km (16 mi) WSW of Longbranch, WA
  36. 1.9 27 km (17 mi) N of Longbranch, WA
  37. 1.6 24 km (15 mi) WSW of Longbranch, WA
  38. 1.6 28 km (17 mi) WSW of Longbranch, WA
  39. 2.5 10 km (6 mi) NE of Longbranch, WA
  40. 1.5 27 km (17 mi) W of Longbranch, WA
  41. 2.0 23 km (14 mi) ENE of Longbranch, WA
  42. 1.6 26 km (16 mi) WSW of Longbranch, WA
  43. 1.5 27 km (17 mi) NE of Longbranch, WA
  44. 1.8 27 km (17 mi) NE of Longbranch, WA · felt by 3
  45. 1.6 29 km (18 mi) WSW of Longbranch, WA
  46. 2.2 30 km (18 mi) N of Longbranch, WA · felt by 1
  47. 1.7 28 km (17 mi) WSW of Longbranch, WA
  48. 1.7 27 km (17 mi) NNW of Longbranch, WA
  49. 2.0 28 km (17 mi) ENE of Longbranch, WA
  50. 1.9 28 km (17 mi) NNW of Longbranch, WA

From the QuakeIndex database, which reads the USGS feed every 30 seconds and holds the USGS catalogue for the US from 2016 (M1.5+). Times are Longbranch time. Distances are from the town centre. Quakes USGS named after Longbranch are listed even when they are further out.

Show these earthquakes on your own site: a free card with the latest quakes near Longbranch, for a local news site, school or neighborhood page.

On the map

The white circle is Longbranch; dots are the 50 most recent earthquakes within 30 km. Map © OpenStreetMap contributors.

Estimated shaking in Longbranch

The strongest shaking in Longbranch from a quake since 2016 is estimated at intensity III (weak), from the M 4.2 on 29 September 2026, 21 km away. Intensity II and III are felt by some people at rest indoors; IV by most people indoors; V and above wakes sleepers and moves objects.

MagnitudeWhenDistanceShaking in Longbranch (est.)
M 4.2 21 kmIII · Weak · felt by 9,329
M 3.2 29 kmII · Weak · felt by 1,291
M 2.6 21 kmII · Weak · felt by 105
M 2.9 8 kmII · Weak · felt by 38
M 3.1 23 kmII · Weak · felt by 214

An estimate for the town centre from magnitude, depth and distance, with the intensity equation USGS Did You Feel It? uses (Atkinson & Wald, 2007), on the Modified Mercalli scale. All 5 reach intensity II or more in town, where people at rest start to notice. Ground conditions change it street by street. It describes the past, not a hazard.

Before 2016

The USGS record since 1900 lists 7 earthquakes of M5 or more within 50 km of Longbranch; the five largest:

  1. 6.8 The 2001 Nisqually, Washington Earthquake · 7 km SSE of Longbranch
  2. 6.7 4 km WNW of Roy, Washington · 25 km SSE of Longbranch
  3. 6.7 1 km ENE of Dash Point, Washington · 29 km ENE of Longbranch
  4. 6.1 Puget Sound region, Washington · 21 km N of Longbranch
  5. 5.8 Puget Sound area, Washington · 13 km NW of Longbranch

USGS ComCat, M5+ from 1900 to 2015. This is the record, not a forecast.

Nearest mapped faults

USGS Quaternary Fault and Fold Database. Near is not the same as on.

Nearby towns

Artondale 14 km · University Place 16 km · Lakewood 18 km · Tacoma 24 km

Be ready

Earthquakes cannot be predicted, here or anywhere, so the useful step is the one taken beforehand. The advice below is from the agencies responsible for it.

QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.