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
135
vs previous 12 (140)
-4%
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-US7000ELDJ2021-07-13 → 2021-07-16
    Earthquake magnitude 5.6 (mww) in 46.173N 151.617E, depth 44 km at 130030Z jul 21
    Kuril Islands
  2. USGS-US7000EIK42021-07-04 → 2021-07-07
    89 km wnw of corral del risco (punta de mita), mexico
  3. USGS-US7000EBW82021-06-10 → 2021-06-13
    102 km s of sámara, costa rica
  4. USGS-US7000E9MR2021-06-04 → 2021-06-07
    149 km w of gold beach, oregon
  5. USGS-US7000E9MG2021-06-04 → 2021-06-07
    153 km w of gold beach, oregon
  6. USGS-US6000EGLQ2021-06-01 → 2021-06-04
    Earthquake magnitude 5.5 (mww) in 5.046N 082.677W, depth 10 km at 011120Z jun 21
    South of Panama
  7. USGS-US6000EFQ62021-05-29 → 2021-06-01
    122 km ene of hasaki, japan
  8. USGS-US7000E57B2021-05-21 → 2021-05-24
    40 km sw of jiquilillo, nicaragua
  9. USGS-US7000E3H12021-05-16 → 2021-05-19
    106 km s of kushiro, japan
  10. USGS-US7000E2XD2021-05-13 → 2021-05-16
    76 km ene of namie, japan
  11. USGS-US7000E2RQ2021-05-13 → 2021-05-16
    154 km sse of punta de burica, panama
  12. USGS-US7000E2C62021-05-12 → 2021-05-15
    55 km sw of acajutla, el salvador
  13. USGS-US7000E2BD2021-05-12 → 2021-05-15
    69 km wsw of acajutla, el salvador
  14. USGS-US7000DZ5T2021-05-01 → 2021-05-04
    30 km sse of onagawa ch?, japan
  15. USGS-US6000E2HQ2021-04-18 → 2021-04-21
    53 km ese of ishinomaki, japan
  16. USGS-US6000E2HF2021-04-18 → 2021-04-21
    57 km e of ishinomaki, japan
  17. USGS-US6000E1EC2021-04-14 → 2021-04-17
    Earthquake magnitude 5.7 (mww) in 1.861N 100.960W, depth 10 km at 140433Z apr 21
    Galapagos Triple Junction Region
  18. USGS-US6000DX322021-03-28 → 2021-03-31
    154 km sse of tateyama, japan
  19. HYDROPAC 882/212021-03-20 → 2021-03-20
    Earthquake with magnitude of 7.2 has occurred in vicinity 38-24N 141-42E at 200909Z mar
    Western North Pacific · Japan
  20. USGS-US7000DL6Y2021-03-20 → 2021-03-23
    30 km e of ishinomaki, japan
  21. USGS-US7000DL4V2021-03-20 → 2021-03-23
    6 km nnw of marquelia, mexico
  22. USGS-US7000DJZ62021-03-16 → 2021-03-19
    171 km sse of ust’-kamchatsk staryy, russia
  23. USGS-US7000DGKL2021-03-06 → 2021-03-09
    Earthquake magnitude 5.5 (mww) in 21.097N 144.441E, depth 10 km at 061818Z mar 21
    Mariana Islands Region
  24. USGS-US7000DEYU2021-03-02 → 2021-03-05
    99 km ene of shikotan, russia
  25. USGS-US6000DIVK2021-02-19 → 2021-02-22
    209 km wsw of adak, alaska
  26. USGS-US6000DHER2021-02-13 → 2021-02-16
    73 km ene of namie, japan
  27. USGS-US6000DCX72021-01-29 → 2021-02-01
    12 km wsw of puerto armuelles, panama
  28. USGS-US6000DCX12021-01-29 → 2021-02-01
    12 km sw of puerto armuelles, panama
  29. USGS-US7000D0D02021-01-15 → 2021-01-18
    46 km sw of champerico, guatemala
  30. USGS-US6000D58T2021-01-03 → 2021-01-06
    230 km wsw of adak, alaska
  31. USGS-US6000D3XN2020-12-29 → 2021-01-01
    212 km w of bandon, oregon
  32. USGS-US6000D29T2020-12-23 → 2020-12-26
    90 km sw of angaur state, palau
  33. USGS-US6000D2242020-12-23 → 2020-12-26
    Earthquake magnitude 5.7 (mww) in 8.317N 103.152W, depth 10 km at 230051Z dec 20
    Northern East Pacific Rise
  34. USGS-US6000D2232020-12-23 → 2020-12-26
    Earthquake magnitude 5.7 (mww) in 8.358N 103.227W, depth 10 km at 230045Z dec 20
    Northern East Pacific Rise
  35. USGS-US7000CSQE2020-12-20 → 2020-12-23
    100 km ene of hachinohe, japan
  36. USGS-US7000CQHY2020-12-12 → 2020-12-15
    53 km n of miyako, japan
  37. USGS-US7000CP052020-12-08 → 2020-12-11
    Earthquake magnitude 5.5 (mww) in 22.520N 144.738E, depth 20 km at 080047Z dec 20
    Volcano Islands, Japan Region
  38. USGS-US7000CLP02020-12-01 → 2020-12-04
    Earthquake magnitude 5.7 (mww) in 53.685N 150.583W, depth 10 km at 011635Z dec 20
    South of Alaska
  39. USGS-US7000CLNV2020-12-01 → 2020-12-04
    46 km ese of nikolski, alaska
  40. USGS-US7000CL2F2020-11-30 → 2020-12-03
    45 km ese of nikolski, alaska
  41. USGS-US6000CRFR2020-11-22 → 2020-11-25
    37 km ese of takahagi, japan
  42. USGS-US7000CD9A2020-11-11 → 2020-11-14
    Earthquake magnitude 5.7 (mww) in 25.471N 142.750E, depth 10 km at 110517Z nov 20
    Volcano Islands, Japan Region
  43. USGS-US7000CBNI2020-11-07 → 2020-11-10
    Earthquake magnitude 5.8 (mww) in 25.710N 143.605E, depth 16 km at 070110Z nov 20
    Volcano Islands, Japan Region
  44. USGS-US7000CB992020-11-06 → 2020-11-09
    157 km ene of hachinohe, japan
  45. USGS-US6000C9U72020-10-20 → 2020-10-23
    130 km sse of sand point, alaska
  46. USGS-US6000C9LF2020-10-19 → 2020-10-22
    118 km sse of sand point, alaska
  47. USGS-AK020DGX8GUC2020-10-19 → 2020-10-22
    144 km sse of sand point, alaska
  48. USGS-US6000C9KM2020-10-19 → 2020-10-22
    114 km sse of sand point, alaska
  49. NAVAREA XII 473/202020-10-19 → 2020-10-20
    An earthquake occurred at 192055Z oct with a preliminary magnitude of 7.4, preliminary location 54-07N 159-06W
    Eastern North Pacific · Alaska
  50. USGS-US6000C9LB2020-10-19 → 2020-10-22
    104 km sse of sand point, alaska

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.