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-US6000K1MN2023-04-03 → 2023-04-06
    23 km sse of vilyuchinsk, russia
  2. USGS-US6000K09Q2023-03-28 → 2023-03-31
    Earthquake magnitude 6.0 (mww) in 41.143N 142.815E, depth 37 km at 280918Z mar 23
    Hokkaido, Japan Region
  3. USGS-US7000JLW82023-03-22 → 2023-03-25
    115 km e of noda, japan
  4. USGS-US7000JLKB2023-03-21 → 2023-03-24
    8 km se of quepos, costa rica
  5. USGS-US7000JI2E2023-03-08 → 2023-03-11
    115 km se of severo-kuril’sk, russia
  6. USGS-US7000JGR12023-03-02 → 2023-03-05
    Earthquake magnitude 5.7 (mww) in 16.256N 094.410W, depth 96 km at 020440Z mar 23
    Oaxaca, Mexico
  7. USGS-US7000JGMU2023-03-01 → 2023-03-04
    156 km se of san jose village, northern mariana islands
  8. USGS-US6000JRJL2023-02-25 → 2023-02-28
    Earthquake magnitude 6.0 (mww) in 42.826N 145.021E, depth 55 km at 251327Z feb 23
    Hokkaido, Japan Region
  9. USGS-US6000JLH92023-02-05 → 2023-02-08
    Earthquake magnitude 5.8 (mww) in 32.655N 141.661E, depth 11 km at 050003Z feb 23
    Izu Islands, Japan Region
  10. USGS-NC738210362022-12-20 → 2022-12-23
    15KM wsw of ferndale, ca
  11. USGS-US6000J9ES2022-12-15 → 2022-12-18
    40 km s of puerto el triunfo, el salvador
  12. USGS-US6000J8U82022-12-12 → 2022-12-15
    Earthquake magnitude 5.5 (mww) in 4.849N 082.766W, depth 10 km at 121827Z dec 22
    South of Panama
  13. USGS-US6000J8LP2022-12-11 → 2022-12-14
    7 km w of corral falso, mexico
  14. USGS-US7000ISHX2022-11-26 → 2022-11-29
    Earthquake magnitude 5.6 (mww) in 18.761N 146.961E, depth 17 km at 260605Z nov 22
    Pagan Region, Northern Mariana Islands
  15. USGS-US7000IRJD2022-11-22 → 2022-11-25
    28 km sw of las brisas, mexico
  16. USGS-US7000IRBB2022-11-21 → 2022-11-24
    86 km sse of nikolski, alaska
  17. USGS-US7000IP7P2022-11-12 → 2022-11-15
    12 km e of la gomera, guatemala
  18. USGS-US7000IMEU2022-11-04 → 2022-11-07
    Earthquake magnitude 5.7 (mww) in 13.145N 089.557W, depth 43 km at 040426Z nov 22
    El Salvador
  19. USGS-US7000ILWT2022-11-02 → 2022-11-05
    Earthquake magnitude 6.0 (mww) in 31.504N 133.351W, depth 10 km at 020453Z nov 22
    North Pacific Ocean
  20. USGS-US6000IV6C2022-10-20 → 2022-10-23
    60 km ssw of boca chica, panama
  21. USGS-US6000IU4B2022-10-16 → 2022-10-19
    Earthquake magnitude 6.3 (mww) in 4.358N 087.567W, depth 15 km at 161248Z oct 22
    Off the Coast of Central America
  22. USGS-US6000IQ0Y2022-10-01 → 2022-10-04
    102 km ssw of manuel ávila camacho (ponte duro), mexico
  23. USGS-US6000IP3F2022-09-28 → 2022-10-01
    Earthquake magnitude 5.5 (mww) in 8.489N 102.802W, depth 10 km at 282234Z sep 22
    Northern East Pacific Rise
  24. USGS-US7000IA362022-09-22 → 2022-09-25
    55 km ssw of aguililla, mexico
  25. USGS-US7000I9HM2022-09-20 → 2022-09-23
    20 km s of la placita de morelos, mexico
  26. NAVAREA XII 697/222022-09-19 → 2022-09-20
    Earthquake with magnitude of 7.6 occurred in 18-12.00N 103-24.00W at 191805Z sep tsunami waves are possible…
    Eastern North Pacific · Mexico
  27. NAVAREA XII 696/222022-09-19 → 2022-09-19
    Earthquake with magnitude of 7.5 occurred in 18-12.00N 103-24.00W at 191805Z sep tsunami waves are possible…
    Eastern North Pacific · Mexico
  28. USGS-US7000I9BW2022-09-19 → 2022-09-22
    35 km ssw of aguililla, mexico
  29. USGS-US6000IBI32022-08-17 → 2022-08-20
    261 km sse of katsuura, japan
  30. USGS-US6000I8VZ2022-08-07 → 2022-08-10
    109 km e of shikotan, russia
  31. USGS-US6000I7XR2022-08-04 → 2022-08-07
    Earthquake magnitude 5.7 (mww) in 32.612N 142.529E, depth 12 km at 040339Z aug 22
    Izu Islands, Japan Region
  32. USGS-US6000I6PA2022-07-29 → 2022-08-01
    264 km se of vilyuchinsk, russia
  33. USGS-US6000I1GC2022-07-10 → 2022-07-13
    Earthquake magnitude 5.7 (mww) in 18.823N 147.035E, depth 8 km at 102219Z jul 22
    Mariana Islands Region
  34. USGS-US6000I12C2022-07-08 → 2022-07-11
    Earthquake magnitude 5.9 (mww) in 18.821N 146.940E, depth 10 km at 082343Z jul 22
    Pagan Region, Northern Mariana Islands
  35. USGS-US6000I1262022-07-08 → 2022-07-11
    Earthquake magnitude 5.8 (mww) in 18.896N 146.970E, depth 10 km at 082336Z jul 22
    Pagan Region, Northern Mariana Islands
  36. USGS-US7000HIXL2022-06-21 → 2022-06-24
    Earthquake magnitude 5.9 (mww) in 27.862N 142.732E, depth 10 km at 210714Z jun 22
    Bonin Islands, Japan Region
  37. USGS-US7000HHIK2022-06-15 → 2022-06-18
    Earthquake magnitude 5.6 (mww) in 44.538N 130.112W, depth 10 km at 151156Z jun 22
    Off the Coast of Oregon
  38. USGS-US7000HCIR2022-05-25 → 2022-05-28
    12 km wnw of santa maría zapotitlán, mexico
  39. USGS-US6000HN6M2022-05-23 → 2022-05-26
    136 km sse of shizunai-furukawach?, japan
  40. USGS-US6000HN4D2022-05-22 → 2022-05-25
    235 km sse of katsuura, japan
  41. USGS-US6000HLXV2022-05-18 → 2022-05-21
    Earthquake magnitude 5.7 (mww) in 51.100N 178.717E, depth 18 km at 180627Z may 22
    Rat Islands, Aleutian Islands, Alaska
  42. USGS-US6000HLXG2022-05-18 → 2022-05-21
    227 km sse of katsuura, japan
  43. USGS-US6000HLRY2022-05-17 → 2022-05-20
    224 km sse of katsuura, japan
  44. USGS-US6000HLQ72022-05-17 → 2022-05-20
    230 km sse of katsuura, japan
  45. USGS-US6000HLAK2022-05-15 → 2022-05-18
    299 km wsw of merizo village, guam
  46. USGS-US7000H69C2022-05-01 → 2022-05-04
    Earthquake magnitude 5.5 (mww) in 23.650N 142.707E, depth 54 km at 012157Z may 22
    Volcano Islands, Japan Region
  47. USGS-US6000HFYJ2022-04-24 → 2022-04-27
    Earthquake magnitude 5.6 (mww) in 46.062N 152.846E, depth 35 km at 240135Z apr 22
    Kuril Islands
  48. USGS-US6000HF752022-04-21 → 2022-04-24
    55 km wsw of masachapa, nicaragua
  49. USGS-US7000H0X92022-04-09 → 2022-04-12
    Earthquake magnitude 5.7 (mww) in 51.149N 178.735E, depth 22 km at 091629Z apr 22
    Rat Islands, Aleutian Islands, Alaska
  50. USGS-US7000GY5Q2022-03-29 → 2022-04-01
    Earthquake magnitude 5.5 (mww) in 15.245N 104.358W, depth 10 km at 291713Z mar 22
    Off the Coast of Michoacan, Mexico

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 8 · seahazards