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-USP000A8782001-01-23 → 2001-01-26
    185 km sw of port mcneill, canada
  2. USGS-USP000A86J2001-01-23 → 2001-01-26
    13 km nw of puerto san josé, guatemala
  3. USGS-USP000A7Z52001-01-19 → 2001-01-22
    6 km nne of hidalgo, mexico
  4. USGS-USP000A7SU2001-01-16 → 2001-01-19
    36 km ssw of puerto el triunfo, el salvador
  5. USGS-USP000A7SP2001-01-16 → 2001-01-19
    29 km s of puerto el triunfo, el salvador
  6. USGS-USP000A7QW2001-01-15 → 2001-01-18
    23 km s of puerto el triunfo, el salvador
  7. USGS-USP000A7QB2001-01-15 → 2001-01-18
    27 km wsw of jiquilisco, el salvador
  8. USGS-USP000A7PP2001-01-14 → 2001-01-17
    18 km ssw of puerto el triunfo, el salvador
  9. USGS-USP000A7NC2001-01-14 → 2001-01-17
    Earthquake magnitude 5.9 (mwc) in 22.094N 143.751E, depth 87 km at 140858Z jan 01
    Volcano Islands, Japan Region
  10. USGS-USP000A7M52001-01-13 → 2001-01-16
    28 km ssw of puerto el triunfo, el salvador
  11. USGS-USP000A7FX2001-01-11 → 2001-01-14
    247 km sw of port mcneill, canada
  12. USGS-USP000A7BM2001-01-09 → 2001-01-12
    7 km ne of nuevo milenio valdivia, mexico
  13. USGS-USP000A73R2001-01-03 → 2001-01-06
    88 km e of shikotan, russia
  14. USGS-USP000A6EJ2000-12-20 → 2000-12-23
    51 km s of sámara, costa rica
  15. USGS-USP000A6BM2000-12-19 → 2000-12-22
    166 km s of merizo village, guam
  16. USGS-USP000A5Y02000-12-12 → 2000-12-15
    224 km s of punta de burica, panama
  17. USGS-USP000A5QS2000-12-08 → 2000-12-11
    131 km wsw of mazatlán, mexico
  18. USGS-USP000A5JR2000-12-05 → 2000-12-08
    79 km ese of nikolski, alaska
  19. USGS-USP000A5GK2000-12-04 → 2000-12-07
    10 km e of hasaki, japan
  20. USGS-USP000A5FV2000-12-04 → 2000-12-07
    104 km sw of el palmarcito, mexico
  21. USGS-USP000A4S02000-11-23 → 2000-11-26
    78 km sw of merizo village, guam
  22. USGS-USP000A3K82000-11-14 → 2000-11-17
    60 km sse of kushiro, japan
  23. USGS-USP000A3J62000-11-13 → 2000-11-16
    62 km sse of kushiro, japan
  24. USGS-USP000A3732000-11-08 → 2000-11-11
    10 km sw of juradó, colombia
  25. USGS-USP000A2P32000-10-29 → 2000-11-01
    Earthquake magnitude 5.5 (mwc) in 47.782N 155.651E, depth 50 km at 292203Z oct 00
    East of the Kuril Islands
  26. USGS-USP000A2J22000-10-28 → 2000-10-31
    Earthquake magnitude 5.7 (mwc) in 18.298N 146.483E, depth 51 km at 280412Z oct 00
    Pagan Region, Northern Mariana Islands
  27. USGS-USP000A26D2000-10-21 → 2000-10-24
    286 km n of puerto ayora, ecuador
  28. USGS-USP000A2672000-10-21 → 2000-10-24
    274 km nnw of puerto ayora, ecuador
  29. USGS-USP000A1662000-10-03 → 2000-10-06
    123 km ne of miyako, japan
  30. USGS-USP0009ZMV2000-09-03 → 2000-09-06
    86 km s of shikotan, russia
  31. USGS-USP0009Z8Q2000-08-27 → 2000-08-30
    Earthquake magnitude 5.6 (mwc) in 22.219N 143.760E, depth 100 km at 271719Z aug 00
    Volcano Islands, Japan Region
  32. USGS-USP0009Z1V2000-08-23 → 2000-08-26
    206 km sse of cabo san lucas, mexico
  33. USGS-USP0009YSZ2000-08-19 → 2000-08-22
    35 km e of shikotan, russia
  34. USGS-USP0009YSH2000-08-19 → 2000-08-22
    75 km e of ?arai, japan
  35. USGS-USP0009YJ52000-08-15 → 2000-08-18
    83 km s of shikotan, russia
  36. USGS-USP0009YAV2000-08-12 → 2000-08-15
    Earthquake magnitude 5.6 (mwc) in 8.369N 103.957W, depth 10 km at 121413Z aug 00
    Northern East Pacific Rise
  37. USGS-USP0009Y652000-08-09 → 2000-08-12
    24 km nnw of el habillal, mexico
  38. USGS-USP0009WWR2000-07-21 → 2000-07-24
    64 km ssw of paquera, costa rica
  39. USGS-USP0009WWN2000-07-21 → 2000-07-24
    61 km e of ?hara, japan
  40. USGS-USP0009WWB2000-07-21 → 2000-07-24
    55 km sse of sámara, costa rica
  41. USGS-USP0009WVY2000-07-20 → 2000-07-23
    31 km ese of hitachi, japan
  42. USGS-USP0009VVF2000-07-06 → 2000-07-09
    193 km w of attu station, alaska
  43. USGS-USP0009VCZ2000-06-29 → 2000-07-02
    29 km ssw of merizo village, guam
  44. USGS-USP0009UJJ2000-06-14 → 2000-06-17
    Earthquake magnitude 5.5 (mwc) in 46.640N 152.587E, depth 33 km at 141411Z jun 00
    Kuril Islands
  45. USGS-USP0009U7Y2000-06-08 → 2000-06-11
    18 km wsw of champerico, guatemala
  46. USGS-USP0009TVJ2000-06-03 → 2000-06-06
    6 km se of narut?, japan
  47. USGS-USP0009TV32000-06-03 → 2000-06-06
    117 km sse of vilyuchinsk, russia
  48. USGS-USP0009TTW2000-06-02 → 2000-06-05
    Earthquake magnitude 6.2 (mwc) in 44.513N 130.081W, depth 10 km at 021113Z jun 00
    Off the Coast of Oregon
  49. USGS-USP0009SZT2000-05-15 → 2000-05-18
    242 km wsw of port mcneill, canada
  50. USGS-USP0009SDF2000-05-04 → 2000-05-07
    Earthquake magnitude 5.5 (mwc) in 17.513N 147.629E, depth 33 km at 042324Z may 00
    Mariana Islands Region

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 44 · seahazards