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
2
last 12 months
134
vs previous 12 (141)
-5%
since 1997
2,413

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 · 2

  1. 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.
  2. 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.

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-USP000HVRE2011-03-11 → 2011-03-14
    178 km e of namie, japan
  2. USGS-USP000HVRD2011-03-11 → 2011-03-14
    81 km ne of hasaki, japan
  3. USGS-USP000HVRB2011-03-11 → 2011-03-14
    Earthquake magnitude 6.1 (mb) in 37.047N 144.541E, depth 41 km at 110815Z mar 11
    Off the East Coast of Honshu, Japan
  4. USGS-USP000HVRA2011-03-11 → 2011-03-14
    70 km ese of kitaibaraki, japan
  5. USGS-USP000HVR92011-03-11 → 2011-03-14
    24 km e of ?arai, japan
  6. USGS-USP000HVR72011-03-11 → 2011-03-14
    107 km e of namie, japan
  7. USGS-USP000HVR62011-03-11 → 2011-03-14
    162 km e of iwaki, japan
  8. USGS-USP000HVR42011-03-11 → 2011-03-14
    166 km ese of namie, japan
  9. USGS-USP000HVR32011-03-11 → 2011-03-14
    116 km ese of namie, japan
  10. USGS-USP000HVR22011-03-11 → 2011-03-14
    58 km ene of namie, japan
  11. USGS-USP000HVQV2011-03-11 → 2011-03-14
    102 km ene of hasaki, japan
  12. USGS-USP000HVQU2011-03-11 → 2011-03-14
    110 km ese of kitaibaraki, japan
  13. USGS-USP000HVQS2011-03-11 → 2011-03-14
    78 km ese of yamada, japan
  14. USGS-USP000HVQQ2011-03-11 → 2011-03-14
    127 km e of iwaki, japan
  15. USGS-USP000HVQP2011-03-11 → 2011-03-14
    181 km ene of hasaki, japan
  16. USGS-USP000HVQN2011-03-11 → 2011-03-14
    17 km ese of namie, japan
  17. USGS-USP000HVQM2011-03-11 → 2011-03-14
    49 km ese of kamaishi, japan
  18. USGS-USP000HVQK2011-03-11 → 2011-03-14
    87 km ese of iwaki, japan
  19. USGS-USP000HVQJ2011-03-11 → 2011-03-14
    275 km ese of kamaishi, japan
  20. USGS-USP000HVQH2011-03-11 → 2011-03-14
    97 km e of namie, japan
  21. USGS-USP000HVQG2011-03-11 → 2011-03-14
    135 km ese of namie, japan
  22. USGS-USP000HVQF2011-03-11 → 2011-03-14
    Earthquake magnitude 6.3 (mb) in 36.586N 141.823E, depth 25 km at 110714Z mar 11
    Near the East Coast of Honshu, Japan
  23. USGS-USP000HVQE2011-03-11 → 2011-03-14
    143 km ene of hasaki, japan
  24. USGS-USP000HVQD2011-03-11 → 2011-03-14
    134 km ese of ishinomaki, japan
  25. USGS-USP000HVQC2011-03-11 → 2011-03-14
    94 km ese of iwaki, japan
  26. USGS-USP000HVQB2011-03-11 → 2011-03-14
    95 km ese of iwaki, japan
  27. USGS-USP000HVQA2011-03-11 → 2011-03-14
    Earthquake magnitude 5.6 (mb) in 37.778N 142.980E, depth 22 km at 110706Z mar 11
    Off the East Coast of Honshu, Japan
  28. USGS-USP000HVQ92011-03-11 → 2011-03-14
    176 km ese of kamaishi, japan
  29. USGS-USP000HVQ82011-03-11 → 2011-03-14
    57 km se of kamaishi, japan
  30. NAVAREA XII 89/112011-03-11 → 2011-03-12
    Tsunami warning
    Pacific Coastal Areas
  31. USGS-USP000HVQ72011-03-11 → 2011-03-14
    142 km ese of ishinomaki, japan
  32. USGS-USP000HVQ62011-03-11 → 2011-03-14
    50 km e of miyako, japan
  33. HYDROPAC 758/112011-03-11 → 2011-03-12
    Tsunami warning
    Pacific Coastal Areas
  34. USGS-USP000HVQ52011-03-11 → 2011-03-14
    Earthquake magnitude 5.7 (mb) in 36.628N 143.755E, depth 36 km at 110701Z mar 11
    Off the East Coast of Honshu, Japan
  35. USGS-USP000HVQ42011-03-11 → 2011-03-14
    Earthquake magnitude 6.3 (mb) in 37.357N 144.725E, depth 36 km at 110659Z mar 11
    Off the East Coast of Honshu, Japan
  36. USGS-USP000HVQ32011-03-11 → 2011-03-14
    4 km ese of hasaki, japan
  37. USGS-USP000HVQ22011-03-11 → 2011-03-14
    164 km e of namie, japan
  38. USGS-USP000HVQ02011-03-11 → 2011-03-14
    155 km ese of ishinomaki, japan
  39. USGS-USP000HVPZ2011-03-11 → 2011-03-14
    18 km e of misawa, japan
  40. USGS-USP000HVPY2011-03-11 → 2011-03-14
    284 km ese of ishinomaki, japan
  41. USGS-USP000HVPX2011-03-11 → 2011-03-14
    134 km ese of ishinomaki, japan
  42. USGS-USP000HVPV2011-03-11 → 2011-03-14
    178 km ese of ishinomaki, japan
  43. USGS-USP000HVPR2011-03-11 → 2011-03-14
    31 km n of t?no, japan
  44. USGS-USP000HVPQ2011-03-11 → 2011-03-14
    138 km ese of namie, japan
  45. USGS-USP000HVPP2011-03-11 → 2011-03-14
    85 km ene of hasaki, japan
  46. USGS-USP000HVPN2011-03-11 → 2011-03-14
    124 km e of namie, japan
  47. USGS-USP000HVPM2011-03-11 → 2011-03-14
    25 km ene of hasaki, japan
  48. USGS-USP000HVPJ2011-03-11 → 2011-03-14
    99 km ese of iwaki, japan
  49. USGS-USP000HVPH2011-03-11 → 2011-03-14
    260 km ese of ?funato, japan
  50. USGS-USP000HVPG2011-03-11 → 2011-03-14
    272 km ese of kamaishi, 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.