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-US20005JYU2016-04-19 → 2016-04-22
    3 km s of muisne, ecuador
  2. HYDROPAC 1119/162016-04-17 → 2016-04-17
    Tsunami warning
    Eastern Pacific · Ecuador
  3. USGS-US20005J322016-04-16 → 2016-04-19
    27 km sse of muisne, ecuador
  4. USGS-US20005IH92016-04-15 → 2016-04-18
    110 km ssw of champerico, guatemala
  5. USGS-US20005HXX2016-04-14 → 2016-04-17
    164 km ene of petropavlovsk-kamchatsky, russia
  6. USGS-US20005GUH2016-04-10 → 2016-04-13
    278 km wsw of adak, alaska
  7. USGS-US20005GS02016-04-10 → 2016-04-13
    5 km ese of santa cruz ozolotepec, mexico
  8. USGS-US20005CX12016-03-28 → 2016-03-31
    73 km s of nikolski, alaska
  9. USGS-US20005CR42016-03-27 → 2016-03-30
    86 km s of nikolski, alaska
  10. USGS-US20005BBH2016-03-20 → 2016-03-23
    216 km s of ust’-kamchatsk staryy, russia
  11. USGS-US20005AZR2016-03-19 → 2016-03-22
    158 km s of puerto el triunfo, el salvador
  12. USGS-US20005AXU2016-03-19 → 2016-03-22
    75 km s of atka, alaska
  13. USGS-US20005AWL2016-03-18 → 2016-03-21
    222 km wsw of port mcneill, canada
  14. USGS-US10004X1W2016-03-12 → 2016-03-15
    72 km sse of atka, alaska
  15. USGS-US10004X0F2016-03-12 → 2016-03-15
    84 km s of atka, alaska
  16. USGS-US10004RKG2016-02-21 → 2016-02-24
    Earthquake magnitude 5.6 (mww) in 24.553N 142.407E, depth 21 km at 212126Z feb 16
    Volcano Islands, Japan Region
  17. USGS-US10004G4L2016-01-21 → 2016-01-24
    203 km sw of la cruz de loreto, mexico
  18. USGS-US10004EBX2016-01-14 → 2016-01-17
    52 km se of shizunai-furukawach?, japan
  19. USGS-US10004AKG2015-12-31 → 2016-01-03
    71 km s of masachapa, nicaragua
  20. USGS-US100047ZQ2015-12-17 → 2015-12-20
    4 km w of manuel ávila camacho (ponte duro), mexico
  21. USGS-US100044XH2015-12-07 → 2015-12-10
    4 km wnw of masagua, guatemala
  22. USGS-US100041U72015-11-28 → 2015-12-01
    51 km ssw of shikotan, russia
  23. USGS-US100041Q52015-11-27 → 2015-11-30
    45 km s of el rosario, el salvador
  24. USGS-US100040IY2015-11-23 → 2015-11-26
    10 km ne of la concordia, mexico
  25. USGS-US10003ZRF2015-11-20 → 2015-11-23
    Earthquake magnitude 5.8 (mww) in 26.357N 142.643E, depth 14 km at 200531Z nov 15
    Bonin Islands, Japan Region
  26. USGS-US10003YR12015-11-16 → 2015-11-19
    293 km ssw of severo-kuril’sk, russia
  27. USGS-US10003X8B2015-11-11 → 2015-11-14
    Earthquake magnitude 5.6 (mww) in 6.239N 147.644E, depth 13 km at 110026Z nov 15
    State of Yap, Federated States of Micronesia
  28. USGS-US10003VYX2015-11-09 → 2015-11-12
    99 km se of atka, alaska
  29. USGS-US10003VQ92015-11-08 → 2015-11-11
    111 km se of atka, alaska
  30. USGS-US10003VQ12015-11-08 → 2015-11-11
    117 km se of atka, alaska
  31. USGS-US200041A02015-11-02 → 2015-11-05
    90 km se of atka, alaska
  32. USGS-US10003NIB2015-10-14 → 2015-10-17
    202 km s of severo-kuril’sk, russia
  33. USGS-US20003NMZ2015-09-24 → 2015-09-27
    221 km w of port mcneill, canada
  34. USGS-US20003KJD2015-09-17 → 2015-09-20
    76 km ene of petropavlovsk-kamchatsky, russia
  35. USGS-US20003HQ52015-09-10 → 2015-09-13
    104 km ssw of nikolski, alaska
  36. USGS-US20003H7G2015-09-08 → 2015-09-11
    161 km sw of la esperanza (el zapotal), mexico
  37. USGS-US20003GPV2015-09-05 → 2015-09-08
    149 km ssw of severo-kuril’sk, russia
  38. USGS-US20003GLC2015-09-05 → 2015-09-08
    92 km s of atka, alaska
  39. USGS-US20003FEG2015-09-01 → 2015-09-04
    Earthquake magnitude 6.0 (mww) in 31.181N 141.600E, depth 8 km at 011525Z sep 15
    Izu Islands, Japan Region
  40. USGS-US20003FE22015-09-01 → 2015-09-04
    Earthquake magnitude 5.6 (mb) in 31.284N 141.706E, depth 10 km at 011524Z sep 15
    Izu Islands, Japan Region
  41. USGS-US100032WE2015-08-17 → 2015-08-20
    Earthquake magnitude 5.7 (mww) in 21.952N 146.628E, depth 10 km at 171442Z aug 15
    Mariana Islands Region
  42. USGS-US100032M52015-08-15 → 2015-08-18
    Earthquake magnitude 5.7 (mww) in 51.674N 175.158W, depth 32 km at 152016Z aug 15
    Andreanof Islands, Aleutian Islands, Alaska
  43. USGS-US1000304A2015-08-07 → 2015-08-10
    Earthquake magnitude 5.6 (mww) in 1.047N 085.270W, depth 7 km at 071348Z aug 15
    Off the Coast of Ecuador
  44. USGS-US1000303S2015-08-07 → 2015-08-10
    Earthquake magnitude 5.6 (mww) in 1.086N 085.208W, depth 10 km at 071218Z aug 15
    Off the Coast of Ecuador
  45. USGS-US10002Y1Z2015-08-05 → 2015-08-08
    11 km ene of tonalá, mexico
  46. USGS-US200030BX2015-07-27 → 2015-07-30
    82 km ssw of nikolski, alaska
  47. USGS-US100032CB2015-07-27 → 2015-07-30
    77 km sw of nikolski, alaska
  48. USGS-US100032CA2015-07-27 → 2015-07-30
    66 km ssw of nikolski, alaska
  49. USGS-US200030BU2015-07-27 → 2015-07-30
    82 km ssw of nikolski, alaska
  50. USGS-US200030AR2015-07-27 → 2015-07-30
    89 km ssw of nikolski, 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.