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 · 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.

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-USP000HVPF2011-03-11 → 2011-03-14
    45 km se of kamaishi, japan
  2. USGS-USP000HVPE2011-03-11 → 2011-03-14
    128 km se of ?funato, japan
  3. USGS-USP000HVPD2011-03-11 → 2011-03-14
    115 km ene of hasaki, japan
  4. USGS-USP000HVPC2011-03-11 → 2011-03-14
    133 km ene of hasaki, japan
  5. USGS-USP000HVPA2011-03-11 → 2011-03-14
    47 km e of ?arai, japan
  6. USGS-USP000HVP92011-03-11 → 2011-03-14
    221 km se of ?funato, japan
  7. USGS-USP000HVP82011-03-11 → 2011-03-14
    61 km ese of namie, japan
  8. USGS-USP000HVP72011-03-11 → 2011-03-14
    261 km ese of ?funato, japan
  9. USGS-USP000HVP62011-03-11 → 2011-03-14
    88 km ene of hasaki, japan
  10. USGS-USP000HVP52011-03-11 → 2011-03-14
    134 km ese of kamaishi, japan
  11. USGS-USP000HVP42011-03-11 → 2011-03-14
    108 km ese of kitaibaraki, japan
  12. USGS-USP000HVP32011-03-11 → 2011-03-14
    47 km se of kamaishi, japan
  13. USGS-USP000HVP22011-03-11 → 2011-03-14
    102 km ese of takahagi, japan
  14. USGS-USP000HVP02011-03-11 → 2011-03-14
    103 km ese of kitaibaraki, japan
  15. USGS-USP000HVNZ2011-03-11 → 2011-03-14
    110 km ese of ishinomaki, japan
  16. USGS-USP000HVNY2011-03-11 → 2011-03-14
    78 km e of iwaki, japan
  17. USGS-USP000HVNX2011-03-11 → 2011-03-14
    103 km e of namie, japan
  18. USGS-USP000HVNW2011-03-11 → 2011-03-14
    208 km e of namie, japan
  19. USGS-USP000HVNV2011-03-11 → 2011-03-14
    30 km nne of namie, japan
  20. USGS-OFFICIAL20110311054624120_302011-03-11 → 2011-03-14
    2011 great tohoku earthquake, japan
  21. USGS-USP000HVME2011-03-10 → 2011-03-13
    142 km ese of kamaishi, japan
  22. USGS-USP000HVKH2011-03-09 → 2011-03-12
    128 km se of ?funato, japan
  23. USGS-USP000HVKG2011-03-09 → 2011-03-12
    114 km se of ?funato, japan
  24. USGS-USP000HVK92011-03-09 → 2011-03-12
    140 km ese of ?funato, japan
  25. USGS-USP000HVK62011-03-09 → 2011-03-12
    99 km e of ishinomaki, japan
  26. USGS-USP000HVJ22011-03-09 → 2011-03-12
    118 km se of kamaishi, japan
  27. USGS-USP000HVHN2011-03-09 → 2011-03-12
    151 km se of ?funato, japan
  28. USGS-USP000HVHM2011-03-09 → 2011-03-12
    130 km se of ?funato, japan
  29. USGS-USP000HVHJ2011-03-09 → 2011-03-12
    120 km se of ?funato, japan
  30. USGS-USP000HUYP2011-02-23 → 2011-02-26
    55 km sw of jiquilillo, nicaragua
  31. USGS-USP000HUXR2011-02-22 → 2011-02-25
    Earthquake magnitude 5.5 (mwb) in 22.110N 143.842E, depth 113 km at 221409Z feb 11
    Volcano Islands, Japan Region
  32. USGS-USP000HUTU2011-02-20 → 2011-02-23
    41 km ssw of ust’-kamchatsk staryy, russia
  33. USGS-USP000HUJS2011-02-15 → 2011-02-18
    150 km se of ?funato, japan
  34. USGS-USP000HSVN2011-01-10 → 2011-01-13
    Earthquake magnitude 5.6 (mwb) in 23.083N 143.166E, depth 87 km at 101024Z jan 11
    Volcano Islands, Japan Region
  35. USGS-USP000HSKF2011-01-05 → 2011-01-08
    Earthquake magnitude 5.6 (mwc) in 31.545N 142.177E, depth 21 km at 050057Z jan 11
    Izu Islands, Japan Region
  36. USGS-USP000HSA42010-12-30 → 2011-01-02
    Earthquake magnitude 5.5 (mwc) in 51.626N 177.378E, depth 57 km at 301202Z dec 10
    Rat Islands, Aleutian Islands, Alaska
  37. USGS-USP000HRXU2010-12-25 → 2010-12-28
    90 km sse of adak, alaska
  38. USGS-USP000HRPY2010-12-23 → 2010-12-26
    139 km wnw of attu station, alaska
  39. USGS-USP000HRKY2010-12-22 → 2010-12-25
    Earthquake magnitude 6.4 (mwc) in 26.810N 143.595E, depth 18 km at 222149Z dec 10
    Bonin Islands, Japan Region
  40. USGS-USP000HRDK2010-12-22 → 2010-12-25
    Earthquake magnitude 5.6 (mwc) in 26.669N 143.535E, depth 10 km at 220131Z dec 10
    Bonin Islands, Japan Region
  41. USGS-USP000HRB62010-12-21 → 2010-12-24
    Earthquake magnitude 5.6 (ms) in 27.096N 143.236E, depth 10 km at 212018Z dec 10
    Bonin Islands, Japan Region
  42. USGS-USP000HR9G2010-12-21 → 2010-12-24
    Earthquake magnitude 5.5 (mb) in 27.081N 143.308E, depth 8 km at 211741Z dec 10
    Bonin Islands, Japan Region
  43. USGS-USP000HR9F2010-12-21 → 2010-12-24
    Earthquake magnitude 5.5 (mb) in 27.080N 143.215E, depth 10 km at 211740Z dec 10
    Bonin Islands, Japan Region
  44. USGS-USP000HR972010-12-21 → 2010-12-24
    Earthquake magnitude 7.4 (mwc) in 26.901N 143.698E, depth 14 km at 211719Z dec 10
    Bonin Islands, Japan Region
  45. USGS-USP000HR7G2010-12-20 → 2010-12-23
    33 km ssw of puerto el triunfo, el salvador
  46. USGS-USP000HR7A2010-12-20 → 2010-12-23
    Earthquake magnitude 5.9 (mwc) in 10.171N 103.977W, depth 10 km at 201515Z dec 10
    Northern East Pacific Rise
  47. USGS-USP000HQJZ2010-12-06 → 2010-12-09
    131 km ene of hachinohe, japan
  48. USGS-USP000HQBW2010-11-30 → 2010-12-03
    213 km ssw of severo-kuril’sk, russia
  49. USGS-USP000HQB32010-11-30 → 2010-12-03
    91 km ssw of nikolski, alaska
  50. USGS-USP000HPCW2010-11-10 → 2010-11-13
    233 km s of punta de burica, panama

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.