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
4
last 12 months
136
vs previous 12 (141)
-4%
since 1997
2,415

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 · 4

  1. USGS-US7000TEFXin force2026-09-04
    156 km e of kuril’sk, russia
  2. 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.
  3. 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.
  4. 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 · 1 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.
  4. USGS-US7000TEFXin force2026-09-04 · 0 d
    156 km e of kuril’sk, russia

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-USP0009SCQ2000-05-04 → 2000-05-07
    137 km wsw of adak, alaska
  2. USGS-USP0009S7Z2000-05-02 → 2000-05-05
    Earthquake magnitude 6.0 (mwc) in 17.439N 147.516E, depth 55 km at 021503Z may 00
    Mariana Islands Region
  3. USGS-USP0009S3W2000-04-30 → 2000-05-03
    236 km w of port mcneill, canada
  4. USGS-USP0009RWX2000-04-26 → 2000-04-29
    125 km ene of miyako, japan
  5. USGS-USP0009RMU2000-04-21 → 2000-04-24
    115 km wsw of adak, alaska
  6. USGS-USP0009QB42000-03-28 → 2000-03-31
    Earthquake magnitude 7.6 (mwc) in 22.338N 143.730E, depth 126 km at 281100Z mar 00
    Volcano Islands, Japan Region
  7. USGS-NC210869152000-03-16 → 2000-03-19
    85 km wsw of ferndale, california
  8. USGS-USP0009PMV2000-03-12 → 2000-03-15
    3 km ese of plan de ayala, mexico
  9. USGS-USP0009NST2000-02-21 → 2000-02-24
    233 km sw of la cruz de loreto, mexico
  10. USGS-USP0009NQN2000-02-20 → 2000-02-23
    63 km s of quepos, costa rica
  11. USGS-USP0009MSF2000-01-28 → 2000-01-31
    84 km s of shikotan, russia
  12. USGS-USP0009MDH2000-01-20 → 2000-01-23
    238 km wnw of bandon, oregon
  13. USGS-USP0009KTQ2000-01-06 → 2000-01-09
    35 km wsw of elfin cove, alaska
  14. USGS-USP0009KNG2000-01-02 → 2000-01-05
    88 km ese of adak, alaska
  15. USGS-USP0009KGN1999-12-30 → 2000-01-02
    Earthquake magnitude 5.6 (mwc) in 47.579N 154.508E, depth 33 km at 301321Z dec 99
    Kuril Islands
  16. USGS-USP0009KD61999-12-28 → 1999-12-31
    269 km s of punta de burica, panama
  17. USGS-USP0009K011999-12-19 → 1999-12-22
    45 km ssw of merizo village, guam
  18. USGS-USP0009JXM1999-12-16 → 1999-12-19
    98 km ssw of sand point, alaska
  19. USGS-USP0009J7D1999-11-27 → 1999-11-30
    245 km se of ust’-kamchatsk staryy, russia
  20. USGS-USP0009J541999-11-26 → 1999-11-29
    223 km se of ust’-kamchatsk staryy, russia
  21. USGS-USP0009J391999-11-26 → 1999-11-29
    218 km se of ust’-kamchatsk staryy, russia
  22. USGS-USP0009HXP1999-11-21 → 1999-11-24
    242 km sw of la cruz de loreto, mexico
  23. USGS-USP0009HNF1999-11-15 → 1999-11-18
    89 km e of ishinomaki, japan
  24. USGS-USP0009HCA1999-11-11 → 1999-11-14
    155 km ssw of severo-kuril’sk, russia
  25. USGS-USP0009GQN1999-10-28 → 1999-10-31
    235 km e of yamada, japan
  26. USGS-USP0009GJR1999-10-25 → 1999-10-28
    Earthquake magnitude 5.8 (mwc) in 31.971N 142.251E, depth 33 km at 250729Z oct 99
    Izu Islands, Japan Region
  27. USGS-USP0009GGY1999-10-24 → 1999-10-27
    141 km ese of kuril’sk, russia
  28. USGS-USP0009FFT1999-10-05 → 1999-10-08
    83 km ese of ozernovskiy, russia
  29. USGS-USP0009FBK1999-10-02 → 1999-10-05
    111 km ene of miyako, japan
  30. USGS-USP0009F7V1999-09-30 → 1999-10-03
    15 km w of san baltazar loxicha, mexico
  31. USGS-USP0009EPP1999-09-20 → 1999-09-23
    Earthquake magnitude 5.5 (mwc) in 46.334N 153.463E, depth 33 km at 200932Z sep 99
    Kuril Islands
  32. USGS-USP0009EMG1999-09-19 → 1999-09-22
    Earthquake magnitude 5.8 (mwc) in 46.419N 153.377E, depth 46 km at 190027Z sep 99
    Kuril Islands
  33. USGS-USP0009EMB1999-09-18 → 1999-09-21
    80 km ese of ozernovskiy, russia
  34. USGS-USP0009EEQ1999-09-14 → 1999-09-17
    52 km ese of saipan, northern mariana islands
  35. USGS-USP0009EBN1999-09-12 → 1999-09-15
    Earthquake magnitude 5.9 (mwb) in 28.970N 142.053E, depth 33 km at 120303Z sep 99
    Bonin Islands, Japan Region
  36. USGS-USP0009E831999-09-09 → 1999-09-12
    Earthquake magnitude 5.5 (mwc) in 47.506N 154.334E, depth 33 km at 091402Z sep 99
    Kuril Islands
  37. USGS-USP0009DEM1999-08-21 → 1999-08-24
    45 km w of ciudad cortés, costa rica
  38. USGS-USP0009DCG1999-08-20 → 1999-08-23
    42 km s of quepos, costa rica
  39. USGS-USP0009CZB1999-08-13 → 1999-08-16
    109 km ssw of nikolski, alaska
  40. USGS-USP0009CZ11999-08-13 → 1999-08-16
    103 km ssw of nikolski, alaska
  41. USGS-USP0009CVB1999-08-10 → 1999-08-13
    23 km ese of quepos, costa rica
  42. USGS-USP0009CUE1999-08-09 → 1999-08-12
    Earthquake magnitude 5.5 (mwc) in 51.229N 178.062E, depth 33 km at 092258Z aug 99
    Rat Islands, Aleutian Islands, Alaska
  43. USGS-USP0009CP61999-08-06 → 1999-08-09
    83 km s of severo-kuril’sk, russia
  44. USGS-USP0009CE51999-08-01 → 1999-08-04
    46 km sse of adak, alaska
  45. USGS-USP0009CBS1999-07-31 → 1999-08-03
    Earthquake magnitude 5.5 (mwc) in 5.201N 082.579W, depth 10 km at 310711Z jul 99
    South of Panama
  46. USGS-USP0009C4C1999-07-26 → 1999-07-29
    26 km ene of misawa, japan
  47. USGS-USP0009BJ61999-07-13 → 1999-07-16
    34 km sw of pasaco, guatemala
  48. USGS-USP0009B841999-07-07 → 1999-07-10
    165 km ssw of severo-kuril’sk, russia
  49. USGS-UW104743031999-07-03 → 1999-07-06
    8 km n of satsop, washington
  50. USGS-USP0009AXX1999-07-02 → 1999-07-05
    203 km sw of port mcneill, canada

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 45 · seahazards