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SeismoAtlas

M2.0 earthquake 69 km WSW of Kalifornsky, Alaska, United States

A magnitude 2.0 earthquake struck 69 km WSW of Kalifornsky, Alaska, United States at 00:15 local time (08:15 UTC) on 26 Sept 2026, at a depth of 102 km, according to USGS.

revised from M1.9

Data: USGS · updated 2026-10-02 22:44 UTC · reviewed

Magnitude
2.0micro
local magnitude (Richter) (ml)
revised from 1.9
Depth
101.9 km
Status
Reviewed
Origin time
2026-09-26 08:15:08 UTC
Local: 26 Sept 2026, 00:15:08 (America/Anchorage)
Epicentre
60.171° N, 152.444° W

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Circles show this event and others within 30 km from 7 days before to 30 days after. Lines: plate boundaries and GEM active faults. Open on the live map

Nearby places

Distance and estimated shaking at nearby places
PlaceDistanceEst. shaking
KalifornskyAlaska, United States · pop. 7,85069 kmINot felt
HomerAlaska, United States · pop. 5,51577 kmINot felt
AnchorageAlaska, United States · pop. 289,600181 kmINot felt

Shaking is an estimate from the intensity prediction equation of Allen, Wald & Worden (2012), not an observation. Local ground and buildings can change it by a level or more.

Every agency's solution

Agencies locate earthquakes with their own stations and methods, so their numbers differ. We match reports of the same event by time, distance and magnitude and show them side by side. The headline uses USGS · AK, which has been reviewed by an analyst.

AgencyMagnitudeDepthEpicentreTime offsetStatus
USGS · AKheadlineAlaska Earthquake Center via U.S. Geological Survey2.0 mlwas 1.9101.9 km60.17° N, 152.44° W–Reviewed · 1 revision

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How big was it?

Usually not felt. Recorded by nearby seismometers; thousands occur worldwide every day.

It released roughly the energy of 15 kg of TNT. Magnitude is logarithmic: each whole step means about 32 times more energy and 10 times larger waves on a seismogram. Depth matters too: at 102 km this was a intermediate-depth earthquake, which spreads shaking over a wider area but less intensely.

M2.0 releases about 32× the energy of M1.0, and its waves are about 10× taller on a seismogram. Energy: 15 kg of TNT vs 477 g of TNT.

Each square is the energy of one M1.0. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

27 later earthquakes within 30 km; the largest was M3.0 6 days ago. 12 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.0

27 later earthquakes nearby. Aftershock rates typically fall off roughly as 1/time (Omori's law).

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
1.482.3117
20.741.891
31.541.7119
34.242.191
42.412.095
42.471.478
52.681.0100
71.081.6102
71.591.4102
84.881.454
112.202.1106
114.141.397
115.123.094
120.171.899
131.232.6100
132.412.1112
140.281.7125
167.291.5103
168.440.896
194.971.3160
218.853.0105
219.922.6125
238.880.642
241.440.6100
254.950.312
261.471.7106
269.831.783
  1. 3.060 km NW of Homer, Alaska, United States10-01 03:22
  2. 3.069 km WSW of Kalifornsky, Alaska, United States10-05 11:06
  3. 2.668 km NW of Homer, Alaska, United States10-01 19:28
  4. 2.695 km NW of Homer, Alaska, United States10-05 12:10
  5. 2.378 km WSW of Kalifornsky, Alaska, United States09-26 09:43
  6. 2.152 km NW of Homer, Alaska, United States09-27 18:29
  7. 2.178 km WSW of Kalifornsky, Alaska, United States10-01 00:27
  8. 2.181 km NW of Homer, Alaska, United States10-01 20:39
  9. 2.074 km WSW of Kalifornsky, Alaska, United States09-28 02:39
  10. 1.861 km W of Kalifornsky, Alaska, United States09-27 04:59
  11. 1.873 km WNW of Homer, Alaska, United States10-01 08:25
  12. 1.783 km NW of Homer, Alaska, United States09-27 15:47
  13. 1.783 km WSW of Kalifornsky, Alaska, United States10-02 04:31
  14. 1.788 km WSW of Kalifornsky, Alaska, United States10-07 05:43
  15. 1.743 km W of Kalifornsky, Alaska, United States10-07 14:04
  16. 1.678 km NW of Homer, Alaska, United States09-29 07:19
  17. 1.585 km WNW of Homer, Alaska, United States10-03 07:32
  18. 1.457 km NNW of Homer, Alaska, United States09-28 02:43
  19. 1.477 km WSW of Kalifornsky, Alaska, United States09-29 07:50
  20. 1.451 km NNW of Homer, Alaska, United States09-29 21:07
  21. 1.372 km WSW of Kalifornsky, Alaska, United States10-01 02:23
  22. 1.368 km WSW of Kalifornsky, Alaska, United States10-04 11:13
  23. 1.079 km NW of Homer, Alaska, United States09-28 12:55
  24. 0.880 km WNW of Homer, Alaska, United States10-03 08:41
  25. 0.682 km W of Kalifornsky, Alaska, United States10-06 07:08

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Reports on SeismoAtlas

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Event id aka2026tbqjqd. First recorded here 28 Sept 2026, 17:32:09 UTC. Solutions: USGS · AK (usgs:aka2026tbqjqd). Cite as: SeismoAtlas, “M2.0 earthquake 69 km WSW of Kalifornsky, Alaska, United States”, https://seismoatlas.com/earthquake/aka2026tbqjqd-m2-0-earthquake-69-km-wsw-of-kalifornsky-alaska-united-states, data from USGS.

JSON: /api/v1/events/aka2026tbqjqd. SeismoAtlas is not an official warning service.