Earthquake & tsunami bulletins in the North Pacific Ocean

Undersea earthquakes of magnitude 5.5 and above (USGS) and the tsunami bulletins NAVAREA coordinators relay.

in force
3
last 12 months
135
vs previous 12 (141)
-4%
since 1997
2,414

Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so 2024–2026 are under-counted.

In force now · 3

  1. USGS-US7000TE4Bin force2026-09-03
    An earthquake magnitude 5.5 struck 100 kilometers south of Nikolski, Alaska, at 03:20 UTC on September 26, at a depth of 10 kilometers.
  2. USGS-US7000TDVTin force2026-09-03
    Earthquake magnitude 6.3, 84 km SSW of Nikolski, Alaska, depth 35 km at 03:11 UTC Sep 26. Tsunami message issued; follow tsunami warning centres.
  3. USGS-US7000TDMPin force2026-09-02
    An earthquake of magnitude 5.6 struck 71 km WSW of Puerto Madero, Mexico, at depth 10 km on September 26.

Longest in force

  1. USGS-US7000TDMPin force2026-09-02 · 2 d
    An earthquake of magnitude 5.6 struck 71 km WSW of Puerto Madero, Mexico, at depth 10 km on September 26.
  2. USGS-US7000TDVTin force2026-09-03 · 1 d
    Earthquake magnitude 6.3, 84 km SSW of Nikolski, Alaska, depth 35 km at 03:11 UTC Sep 26. Tsunami message issued; follow tsunami warning centres.
  3. USGS-US7000TE4Bin force2026-09-03 · 0 d
    An earthquake magnitude 5.5 struck 100 kilometers south of Nikolski, Alaska, at 03:20 UTC on September 26, at a depth of 10 kilometers.

By year

97
98
99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

By month (all years)

J
F
M
A
M
J
J
A
S
O
N
D

Other hazards in the North Pacific Ocean

Archive · 2,411 cancelled

  1. USGS-USP000HW192011-03-11 → 2011-03-14
    80 km e of yamada, japan
  2. USGS-USP000HW0Q2011-03-11 → 2011-03-14
    89 km ne of hasaki, japan
  3. USGS-USP000HW0M2011-03-11 → 2011-03-14
    102 km ese of namie, japan
  4. USGS-USP000HVZR2011-03-11 → 2011-03-14
    67 km se of hasaki, japan
  5. USGS-USP000HVZQ2011-03-11 → 2011-03-14
    285 km ese of namie, japan
  6. USGS-USP000HVYT2011-03-11 → 2011-03-14
    130 km e of yamada, japan
  7. USGS-USP000HVY32011-03-11 → 2011-03-14
    65 km e of hasaki, japan
  8. USGS-USP000HVY22011-03-11 → 2011-03-14
    108 km ese of takahagi, japan
  9. USGS-USP000HVY12011-03-11 → 2011-03-14
    108 km ene of hasaki, japan
  10. USGS-USP000HVY02011-03-11 → 2011-03-14
    92 km ene of hasaki, japan
  11. USGS-USP000HVXX2011-03-11 → 2011-03-14
    85 km ese of hitachi, japan
  12. USGS-USP000HVXS2011-03-11 → 2011-03-14
    57 km ene of hasaki, japan
  13. USGS-USP000HVXC2011-03-11 → 2011-03-14
    272 km e of namie, japan
  14. USGS-USP000HVWZ2011-03-11 → 2011-03-14
    20 km nne of kashima-shi, japan
  15. USGS-USP000HVWN2011-03-11 → 2011-03-14
    195 km ese of yamada, japan
  16. USGS-USP000HVWJ2011-03-11 → 2011-03-14
    102 km ene of hasaki, japan
  17. USGS-USP000HVW82011-03-11 → 2011-03-14
    161 km e of namie, japan
  18. USGS-USP000HVW72011-03-11 → 2011-03-14
    99 km ese of takahagi, japan
  19. USGS-USP000HVW02011-03-11 → 2011-03-14
    90 km se of ishinomaki, japan
  20. USGS-USP000HVVW2011-03-11 → 2011-03-14
    83 km ene of hasaki, japan
  21. USGS-USP000HVVF2011-03-11 → 2011-03-14
    40 km ese of kamaishi, japan
  22. USGS-USP000HVVD2011-03-11 → 2011-03-14
    116 km ese of ishinomaki, japan
  23. USGS-USP000HVV52011-03-11 → 2011-03-14
    112 km e of hasaki, japan
  24. USGS-USP000HVV22011-03-11 → 2011-03-14
    84 km e of ?arai, japan
  25. USGS-USP000HVUX2011-03-11 → 2011-03-14
    42 km ne of hasaki, japan
  26. USGS-USP000HVUW2011-03-11 → 2011-03-14
    127 km ese of iwaki, japan
  27. USGS-USP000HVUU2011-03-11 → 2011-03-14
    50 km ese of ?tsuchi, japan
  28. USGS-USP000HVUR2011-03-11 → 2011-03-14
    114 km ese of yamada, japan
  29. USGS-USP000HVUQ2011-03-11 → 2011-03-14
    151 km ene of hasaki, japan
  30. USGS-USP000HVUH2011-03-11 → 2011-03-14
    183 km ese of ishinomaki, japan
  31. USGS-USP000HVUG2011-03-11 → 2011-03-14
    10 km ese of hasaki, japan
  32. USGS-USP000HVUF2011-03-11 → 2011-03-14
    94 km ese of iwaki, japan
  33. USGS-USP000HVUD2011-03-11 → 2011-03-14
    102 km ese of takahagi, japan
  34. USGS-USP000HVUC2011-03-11 → 2011-03-14
    93 km ese of hasaki, japan
  35. USGS-USP000HVU62011-03-11 → 2011-03-14
    52 km ene of namie, japan
  36. USGS-USP000HVTY2011-03-11 → 2011-03-14
    189 km ese of kamaishi, japan
  37. USGS-USP000HVTP2011-03-11 → 2011-03-14
    141 km e of yamada, japan
  38. USGS-USP000HVTJ2011-03-11 → 2011-03-14
    152 km ese of iwaki, japan
  39. USGS-USP000HVTB2011-03-11 → 2011-03-14
    76 km ese of yamada, japan
  40. USGS-USP000HVST2011-03-11 → 2011-03-14
    72 km ene of hasaki, japan
  41. USGS-USP000HVS62011-03-11 → 2011-03-14
    194 km ese of ishinomaki, japan
  42. USGS-USP000HVRU2011-03-11 → 2011-03-14
    97 km ese of iwaki, japan
  43. USGS-USP000HVRQ2011-03-11 → 2011-03-14
    128 km e of namie, japan
  44. USGS-USP000HVRP2011-03-11 → 2011-03-14
    33 km ene of kashima-shi, japan
  45. USGS-USP000HVRN2011-03-11 → 2011-03-14
    4 km ssw of namie, japan
  46. USGS-USP000HVRM2011-03-11 → 2011-03-14
    155 km se of ishinomaki, japan
  47. USGS-USP000HVRJ2011-03-11 → 2011-03-14
    31 km ene of kashima-shi, japan
  48. USGS-USP000HVRH2011-03-11 → 2011-03-14
    94 km ese of yamada, japan
  49. USGS-USP000HVRG2011-03-11 → 2011-03-14
    15 km e of namie, japan
  50. USGS-USP000HVRF2011-03-11 → 2011-03-14
    126 km ese of ishinomaki, japan

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts and your national MSI service.

Earthquake & tsunami bulletins in the North Pacific Ocean — page 27 · seahazards