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-USP000HXX52011-03-19 → 2011-03-22
    8 km wnw of daigo, japan
  2. USGS-USP000HXVJ2011-03-19 → 2011-03-22
    82 km e of miyako, japan
  3. USGS-USP000HXV22011-03-18 → 2011-03-21
    33 km ese of kamaishi, japan
  4. HYDROPAC 850/112011-03-18 → 2011-05-09
    This marad advisory provides guidance to vessels transiting to or from ports in japan or in waters in the…
    Japan-northeast Coast
  5. NAVAREA XII 99/112011-03-18 → 2011-04-30
    This marad advisory provides guidance to vessels transiting to or from ports in japan or in waters in the…
    Japan-northeast Coast
  6. USGS-USP000HXS42011-03-18 → 2011-03-21
    205 km ese of ishinomaki, japan
  7. USGS-USP000HXQA2011-03-17 → 2011-03-20
    124 km ese of namie, japan
  8. USGS-USP000HXNY2011-03-17 → 2011-03-20
    40 km e of kitaibaraki, japan
  9. USGS-USP000HXNV2011-03-17 → 2011-03-20
    26 km sse of asahi, japan
  10. USGS-USP000HXMM2011-03-17 → 2011-03-20
    203 km ese of ishinomaki, japan
  11. USGS-USP000HXMC2011-03-17 → 2011-03-20
    57 km nne of miyako, japan
  12. USGS-USP000HXFE2011-03-16 → 2011-03-19
    27 km nne of miyako, japan
  13. USGS-USP000HXF12011-03-16 → 2011-03-19
    6 km ene of asahi, japan
  14. USGS-USP000HXDX2011-03-15 → 2011-03-18
    54 km e of ?hara, japan
  15. USGS-USP000HXCU2011-03-15 → 2011-03-18
    138 km ene of miyako, japan
  16. USGS-USP000HXC62011-03-15 → 2011-03-18
    109 km e of namie, japan
  17. USGS-USP000HXBX2011-03-15 → 2011-03-18
    122 km ne of miyako, japan
  18. USGS-USP000HXBC2011-03-15 → 2011-03-18
    115 km e of namie, japan
  19. USGS-USP000HX7A2011-03-14 → 2011-03-17
    109 km e of tomioka, japan
  20. USGS-USP000HX382011-03-14 → 2011-03-17
    123 km se of ishinomaki, japan
  21. USGS-USP000HX1E2011-03-14 → 2011-03-17
    29 km ene of ?arai, japan
  22. USGS-USP000HWYC2011-03-13 → 2011-03-16
    65 km e of ?hara, japan
  23. USGS-USP000HWV92011-03-13 → 2011-03-16
    124 km e of namie, japan
  24. USGS-USP000HWUP2011-03-13 → 2011-03-16
    27 km sse of ?funato, japan
  25. USGS-USP000HWTG2011-03-13 → 2011-03-16
    106 km e of miyako, japan
  26. USGS-USP000HWQP2011-03-13 → 2011-03-16
    150 km ese of kitaibaraki, japan
  27. USGS-USP000HWQ62011-03-13 → 2011-03-16
    72 km e of hasaki, japan
  28. USGS-USP000HWNQ2011-03-12 → 2011-03-15
    55 km se of ishinomaki, japan
  29. USGS-USP000HWMQ2011-03-12 → 2011-03-15
    81 km ene of namie, japan
  30. USGS-USP000HWJ32011-03-12 → 2011-03-15
    154 km ese of iwaki, japan
  31. USGS-USP000HWGQ2011-03-12 → 2011-03-15
    39 km e of yamada, japan
  32. USGS-USP000HWGB2011-03-12 → 2011-03-15
    78 km ese of ?funato, japan
  33. USGS-USP000HWFV2011-03-12 → 2011-03-15
    29 km sse of namie, japan
  34. USGS-USP000HWFP2011-03-12 → 2011-03-15
    207 km ese of ishinomaki, japan
  35. USGS-USP000HWEC2011-03-12 → 2011-03-15
    43 km se of kamaishi, japan
  36. USGS-USP000HWB02011-03-12 → 2011-03-15
    41 km ese of kamaishi, japan
  37. USGS-USP000HWA02011-03-12 → 2011-03-15
    118 km ene of miyako, japan
  38. USGS-USP000HW8U2011-03-12 → 2011-03-15
    52 km ene of hasaki, japan
  39. USGS-USP000HW8Q2011-03-12 → 2011-03-15
    56 km e of yamada, japan
  40. USGS-USP000HW8G2011-03-12 → 2011-03-15
    222 km ese of ishinomaki, japan
  41. USGS-USP000HW7R2011-03-12 → 2011-03-15
    146 km e of namie, japan
  42. USGS-USP000HW7Q2011-03-12 → 2011-03-15
    68 km ese of namie, japan
  43. USGS-USP000HW7H2011-03-12 → 2011-03-15
    101 km se of kamaishi, japan
  44. USGS-USP000HW6S2011-03-12 → 2011-03-15
    94 km ene of hasaki, japan
  45. USGS-USP000HW4X2011-03-11 → 2011-03-14
    Earthquake magnitude 5.7 (mb) in 37.834N 144.827E, depth 39 km at 112251Z mar 11
    Off the East Coast of Honshu, Japan
  46. USGS-USP000HW2N2011-03-11 → 2011-03-14
    149 km ese of ishinomaki, japan
  47. USGS-USP000HW2F2011-03-11 → 2011-03-14
    70 km e of hasaki, japan
  48. USGS-USP000HW292011-03-11 → 2011-03-14
    72 km ese of kamaishi, japan
  49. USGS-USP000HW1J2011-03-11 → 2011-03-14
    Earthquake magnitude 5.5 (mb) in 35.685N 140.658E, depth 2 km at 111924Z mar 11
    Near the East Coast of Honshu, Japan
  50. USGS-USP000HW1A2011-03-11 → 2011-03-14
    27 km ese of ?arai, 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.