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-USP000CUYD2004-05-13 → 2004-05-16
    174 km ssw of merizo village, guam
  2. USGS-USP000CU9X2004-05-06 → 2004-05-09
    72 km se of kushiro, japan
  3. USGS-USP000CTPZ2004-04-29 → 2004-05-02
    49 km sw of la cruz, costa rica
  4. USGS-USP000CTMQ2004-04-28 → 2004-05-01
    45 km sw of corinto, nicaragua
  5. USGS-USP000CSEH2004-04-14 → 2004-04-17
    112 km s of ust’-kamchatsk staryy, russia
  6. USGS-USP000CS8Z2004-04-11 → 2004-04-14
    38 km e of kushiro, japan
  7. USGS-USP000CS4Y2004-04-10 → 2004-04-13
    190 km ssw of colonia, micronesia
  8. USGS-USP000CRY32004-04-07 → 2004-04-10
    58 km s of quepos, costa rica
  9. USGS-USP000CRMC2004-04-03 → 2004-04-06
    37 km ese of hitachi, japan
  10. USGS-USP000CQY32004-03-26 → 2004-03-29
    124 km s of kushiro, japan
  11. USGS-USP000CQEP2004-03-20 → 2004-03-23
    149 km ne of petropavlovsk-kamchatsky, russia
  12. USGS-USP000CNW52004-03-02 → 2004-03-05
    33 km sw of masachapa, nicaragua
  13. USGS-USP000CN8V2004-02-25 → 2004-02-28
    41 km sw of champerico, guatemala
  14. USGS-USP000CN6W2004-02-25 → 2004-02-28
    180 km s of ust’-kamchatsk staryy, russia
  15. USGS-USP000CMDD2004-02-17 → 2004-02-20
    27 km se of nemuro, japan
  16. USGS-USP000CKSM2004-02-09 → 2004-02-12
    31 km wnw of puerto san carlos, mexico
  17. USGS-USP000CKD62004-02-04 → 2004-02-07
    2 km s of finca blanco, panama
  18. USGS-USP000CK3Q2004-01-31 → 2004-02-03
    Earthquake magnitude 5.5 (mwc) in 30.052N 142.434E, depth 10 km at 311449Z jan 04
    Izu Islands, Japan Region
  19. USGS-USP000CJQA2004-01-26 → 2004-01-29
    Earthquake magnitude 5.6 (mwc) in 51.135N 178.078E, depth 37 km at 261027Z jan 04
    Rat Islands, Aleutian Islands, Alaska
  20. USGS-USP000CHUG2004-01-13 → 2004-01-16
    15 km ssw of san jerónimo coatlán, mexico
  21. USGS-USP000CHC92004-01-07 → 2004-01-10
    3 km se of divalá, panama
  22. USGS-USP000CGTD2004-01-01 → 2004-01-04
    13 km ssw of petatlán, mexico
  23. USGS-USP000CGT82004-01-01 → 2004-01-04
    6 km sw of petatlán, mexico
  24. USGS-USP000CGP42003-12-31 → 2004-01-03
    Earthquake magnitude 5.9 (mwb) in 46.971N 154.241E, depth 33 km at 312157Z dec 03
    East of the Kuril Islands
  25. USGS-USP000CGHW2003-12-30 → 2004-01-02
    Earthquake magnitude 5.9 (mwb) in 47.053N 154.187E, depth 33 km at 300950Z dec 03
    Kuril Islands
  26. USGS-USP000CGEB2003-12-29 → 2004-01-01
    64 km sse of kushiro, japan
  27. USGS-USP000CFZW2003-12-25 → 2003-12-28
    3 km sse of progreso, panama
  28. USGS-NC213237122003-12-22 → 2003-12-25
    10 km ne of san simeon, california
  29. USGS-USP000CFSM2003-12-22 → 2003-12-25
    79 km sse of kushiro, japan
  30. USGS-USP000CEVY2003-12-09 → 2003-12-12
    192 km wsw of adak, alaska
  31. USGS-USP000CEUF2003-12-08 → 2003-12-11
    Earthquake magnitude 5.6 (mwb) in 51.090N 178.261E, depth 33 km at 082012Z dec 03
    Rat Islands, Aleutian Islands, Alaska
  32. USGS-USP000CEDX2003-12-03 → 2003-12-06
    74 km sse of kushiro, japan
  33. USGS-USP000CDZF2003-11-27 → 2003-11-30
    139 km s of false pass, alaska
  34. USGS-USP000CD9F2003-11-18 → 2003-11-21
    Earthquake magnitude 5.8 (mwc) in 51.045N 178.888E, depth 33 km at 180750Z nov 03
    Rat Islands, Aleutian Islands, Alaska
  35. USGS-USP000CD852003-11-18 → 2003-11-21
    Earthquake magnitude 5.5 (mwc) in 51.105N 178.124E, depth 33 km at 180212Z nov 03
    Rat Islands, Aleutian Islands, Alaska
  36. USGS-USP000CD1Y2003-11-17 → 2003-11-20
    Earthquake magnitude 5.5 (mb) in 51.275N 177.611E, depth 33 km at 170712Z nov 03
    Rat Islands, Aleutian Islands, Alaska
  37. USGS-USP000CD1N2003-11-17 → 2003-11-20
    Earthquake magnitude 7.8 (mwc) in 51.146N 178.650E, depth 33 km at 170643Z nov 03
    Rat Islands, Aleutian Islands, Alaska
  38. USGS-USP000CCVQ2003-11-14 → 2003-11-17
    44 km ese of hitachi, japan
  39. USGS-USP000CC8Q2003-11-07 → 2003-11-10
    76 km se of ozernovskiy, russia
  40. USGS-USP000CC362003-11-05 → 2003-11-08
    44 km w of pizarro, colombia
  41. USGS-USP000CC352003-11-05 → 2003-11-08
    69 km ssw of masachapa, nicaragua
  42. USGS-USP000CBWP2003-11-02 → 2003-11-05
    206 km ese of kuril’sk, russia
  43. USGS-USP000CBTQ2003-11-01 → 2003-11-04
    173 km ese of ishinomaki, japan
  44. USGS-USP000CBPA2003-10-31 → 2003-11-03
    133 km ese of ishinomaki, japan
  45. USGS-USP000CBGH2003-10-28 → 2003-10-31
    82 km e of shikotan, russia
  46. USGS-USP000CB2T2003-10-23 → 2003-10-26
    288 km se of attu station, alaska
  47. USGS-USP000CB2C2003-10-23 → 2003-10-26
    224 km nne of fais, micronesia
  48. USGS-USP000CAZJ2003-10-22 → 2003-10-25
    Earthquake magnitude 5.8 (mwb) in 8.199N 102.941W, depth 10 km at 220230Z oct 03
    Northern East Pacific Rise
  49. USGS-USP000CA5U2003-10-11 → 2003-10-14
    127 km ese of shizunai-furukawach?, japan
  50. USGS-USP000CA432003-10-11 → 2003-10-14
    120 km e of shikotan, russia

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.