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 · 1 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 · 0 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-US7000NX6Q2024-12-09 → 2024-12-12
    123 km ssw of adak, alaska
  2. USGS-US7000NYMN2024-12-09 → 2024-12-12
    132 km ssw of adak, alaska
  3. USGS-US7000NX5Z2024-12-09 → 2024-12-12
    126 km ssw of adak, alaska
  4. USGS-US7000NX5R2024-12-09 → 2024-12-12
    104 km ssw of adak, alaska
  5. USGS-US7000NX4K2024-12-08 → 2024-12-11
    124 km ssw of adak, alaska
  6. USGS-US7000NX3Z2024-12-08 → 2024-12-11
    108 km ssw of adak, alaska
  7. USGS-NC750956512024-12-05 → 2024-12-08
    2024 offshore cape mendocino, california earthquake
  8. USGS-US7000NW3F2024-12-05 → 2024-12-08
    165 km sw of nikolski, alaska
  9. USGS-US7000NR4W2024-11-11 → 2024-11-14
    Earthquake magnitude 5.5 (mww) in 20.169N 145.796E, depth 8 km at 111016Z nov 24
    Maug Islands Region, Northern Mariana Islands
  10. USGS-US7000NQWX2024-11-09 → 2024-11-12
    77 km se of burica, panama
  11. USGS-US7000NQV12024-11-09 → 2024-11-12
    79 km se of burica, panama
  12. USGS-US7000NQB92024-11-06 → 2024-11-09
    Earthquake magnitude 5.8 (mww) in 25.404N 142.859E, depth 8 km at 062255Z nov 24
    Volcano Islands, Japan Region
  13. USGS-US7000NPPJ2024-11-03 → 2024-11-06
    82 km ese of adak, alaska
  14. USGS-US7000NP332024-10-30 → 2024-11-02
    267 km w of bandon, oregon
  15. USGS-US7000NN6T2024-10-25 → 2024-10-28
    69 km sw of brisas barra de suchiate, mexico
  16. USGS-US7000NMLT2024-10-23 → 2024-10-26
    146 km ssw of severo-kuril’sk, russia
  17. USGS-US6000NZ5Z2024-10-16 → 2024-10-19
    225 km sw of josé maría morelos, mexico
  18. USGS-US6000NYAU2024-10-12 → 2024-10-15
    40 km wnw of tamarindo, costa rica
  19. USGS-US7000NH822024-09-30 → 2024-10-03
    108 km e of petropavlovsk-kamchatsky, russia
  20. USGS-US7000NGI12024-09-26 → 2024-09-29
    30 km se of akkeshi, japan
  21. USGS-US7000NE842024-09-16 → 2024-09-19
    266 km ne of saipan, northern mariana islands
  22. USGS-US7000NE512024-09-15 → 2024-09-18
    271 km wnw of port mcneill, canada
  23. USGS-US7000NDSF2024-09-14 → 2024-09-17
    52 km wsw of merizo village, guam
  24. USGS-US6000NNLX2024-08-30 → 2024-09-02
    117 km e of petropavlovsk-kamchatsky, russia
  25. USGS-US6000NNCS2024-08-28 → 2024-08-31
    56 km ssw of la libertad, el salvador
  26. USGS-US7000N9FN2024-08-26 → 2024-08-29
    83 km s of boca chica, panama
  27. USGS-US7000N8KI2024-08-21 → 2024-08-24
    102 km ese of petropavlovsk-kamchatsky, russia
  28. USGS-US7000N7N82024-08-17 → 2024-08-20
    102 km e of petropavlovsk-kamchatsky, russia
  29. USGS-US6000NHBE2024-08-01 → 2024-08-04
    146 km sse of sand point, alaska
  30. USGS-US6000NEKB2024-07-22 → 2024-07-25
    11 km ese of puerto armuelles, panama
  31. USGS-US6000NEJP2024-07-22 → 2024-07-25
    8 km se of puerto armuelles, panama
  32. USGS-US7000N0682024-07-19 → 2024-07-22
    168 km sw of nikolski, alaska
  33. USGS-US7000MZZC2024-07-18 → 2024-07-21
    161 km sse of tateyama, japan
  34. USGS-US7000MYKJ2024-07-11 → 2024-07-14
    209 km wsw of tofino, canada
  35. USGS-US7000MXMX2024-07-07 → 2024-07-10
    71 km ssw of ust’-kamchatsk staryy, russia
  36. USGS-US7000MXL62024-07-07 → 2024-07-10
    75 km ssw of ust’-kamchatsk staryy, russia
  37. USGS-US7000MX3M2024-07-04 → 2024-07-07
    233 km wsw of tofino, canada
  38. USGS-US7000MRV42024-06-12 → 2024-06-15
    Earthquake magnitude 5.7 (mww) in 8.336N 103.332W, depth 10 km at 120225Z jun 24
    Northern East Pacific Rise
  39. USGS-US6000MZME2024-05-19 → 2024-05-22
    169 km sw of nikolski, alaska
  40. USGS-US6000MY202024-05-12 → 2024-05-15
    28 km wsw of brisas barra de suchiate, mexico
  41. USGS-US6000MWF52024-05-05 → 2024-05-08
    156 km ne of fais, micronesia
  42. USGS-US6000MVMI2024-05-02 → 2024-05-05
    96 km ssw of nikolski, alaska
  43. USGS-US7000MCRS2024-04-17 → 2024-04-20
    20 km ese of cárdenas, nicaragua
  44. USGS-US7000M9SQ2024-04-04 → 2024-04-07
    77 km e of minami-sōma, japan
  45. USGS-US7000M9BQ2024-04-02 → 2024-04-05
    137 km ene of saipan, northern mariana islands
  46. USGS-US7000M98G2024-04-01 → 2024-04-04
    7 km sw of kuji, japan
  47. USGS-US7000M8752024-03-27 → 2024-03-30
    189 km wsw of port orford, oregon
  48. USGS-US6000MJCT2024-03-17 → 2024-03-20
    45 km ssw of jiquilillo, nicaragua
  49. USGS-US6000MIUF2024-03-14 → 2024-03-17
    21 km e of iwaki, japan
  50. USGS-US7000M3UD2024-03-07 → 2024-03-10
    78 km sw of tamarindo, costa rica

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 6 · seahazards