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
3
last 12 months
135
vs previous 12 (141)
-4%
since 1997
2,414

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 · 3

  1. 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.
  2. 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.
  3. 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 · 0 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.

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-NC713488512010-02-04 → 2010-02-07
    61 km wsw of ferndale, california
  2. USGS-USP000H6S62010-01-29 → 2010-02-01
    259 km n of puerto ayora, ecuador
  3. USGS-USP000H6RX2010-01-29 → 2010-02-01
    262 km n of puerto ayora, ecuador
  4. USGS-USP000H6EG2010-01-21 → 2010-01-24
    Earthquake magnitude 5.6 (mwb) in 8.268N 110.357W, depth 12 km at 210803Z jan 10
    East Central Pacific Ocean
  5. USGS-USP000H69Z2010-01-18 → 2010-01-21
    17 km sw of san francisco menéndez, el salvador
  6. USGS-USP000H6932010-01-18 → 2010-01-21
    Earthquake magnitude 5.6 (mwc) in 46.482N 153.262E, depth 7 km at 180102Z jan 10
    Kuril Islands
  7. USGS-USP000H67Y2010-01-17 → 2010-01-20
    206 km se of ?funato, japan
  8. USGS-USP000H63W2010-01-14 → 2010-01-17
    257 km ne of fais, micronesia
  9. USGS-NC713380662010-01-10 → 2010-01-13
    The 2010 eureka, california earthquake
  10. USGS-USP000H4ZU2009-12-12 → 2009-12-15
    205 km s of severo-kuril’sk, russia
  11. USGS-USP000H4FA2009-11-26 → 2009-11-29
    12 km sw of acajutla, el salvador
  12. USGS-USP000H4BE2009-11-23 → 2009-11-26
    157 km sw of barra de navidad, mexico
  13. USGS-USP000H44T2009-11-17 → 2009-11-20
    260 km ssw of prince rupert, canada
  14. USGS-USP000H44S2009-11-17 → 2009-11-20
    254 km ssw of prince rupert, canada
  15. USGS-USP000H38G2009-10-22 → 2009-10-25
    147 km sse of punta de burica, panama
  16. USGS-USP000H30Q2009-10-15 → 2009-10-18
    Earthquake magnitude 6.0 (mwc) in 3.272N 103.823W, depth 10 km at 151748Z oct 09
    Galapagos Triple Junction Region
  17. USGS-USP000H2ZA2009-10-15 → 2009-10-18
    Earthquake magnitude 5.5 (mwc) in 1.111N 085.322W, depth 10 km at 150334Z oct 09
    Off the Coast of Ecuador
  18. USGS-USP000H2YN2009-10-15 → 2009-10-18
    114 km s of unalaska, alaska
  19. USGS-USP000H2WQ2009-10-13 → 2009-10-16
    123 km ese of nikolski, alaska
  20. USGS-USP000H2VQ2009-10-13 → 2009-10-16
    122 km se of kuril’sk, russia
  21. USGS-USP000H2U72009-10-13 → 2009-10-16
    127 km e of nikolski, alaska
  22. USGS-USP000H2ET2009-10-06 → 2009-10-09
    255 km wsw of la cruz de loreto, mexico
  23. USGS-USP000H1TV2009-09-24 → 2009-09-27
    236 km wsw of la cruz de loreto, mexico
  24. USGS-USP000H1N12009-09-18 → 2009-09-21
    Earthquake magnitude 5.6 (mwb) in 19.269N 108.481W, depth 10 km at 181846Z sep 09
    Revilla Gigedo Islands Region
  25. USGS-USP000H1EE2009-09-11 → 2009-09-14
    298 km ssw of severo-kuril’sk, russia
  26. USGS-USP000H1CV2009-09-10 → 2009-09-13
    297 km ssw of severo-kuril’sk, russia
  27. USGS-USP000H0Y12009-08-27 → 2009-08-30
    Earthquake magnitude 5.5 (mwb) in 45.502N 153.730E, depth 16 km at 272010Z aug 09
    East of the Kuril Islands
  28. USGS-USP000H09U2009-08-13 → 2009-08-16
    214 km s of sámara, costa rica
  29. USGS-USP000H0932009-08-12 → 2009-08-15
    244 km sse of tateyama, japan
  30. USGS-USP000GZSP2009-07-29 → 2009-08-01
    Earthquake magnitude 5.5 (mwc) in 22.572N 143.263E, depth 140 km at 291452Z jul 09
    Volcano Islands, Japan Region
  31. USGS-USP000GZ2V2009-07-09 → 2009-07-12
    Earthquake magnitude 5.5 (mwc) in 21.952N 144.722E, depth 35 km at 092053Z jul 09
    Mariana Islands Region
  32. USGS-USP000GYZK2009-07-06 → 2009-07-09
    Earthquake magnitude 6.1 (mwc) in 50.435N 176.992E, depth 22 km at 061453Z jul 09
    Rat Islands, Aleutian Islands, Alaska
  33. USGS-USP000GYZJ2009-07-06 → 2009-07-09
    44 km s of masachapa, nicaragua
  34. USGS-USP000GYHG2009-06-23 → 2009-06-26
    63 km ese of ?funato, japan
  35. USGS-USP000GYG72009-06-22 → 2009-06-25
    127 km wsw of adak, alaska
  36. USGS-USP000GY9V2009-06-17 → 2009-06-20
    96 km sw of atka, alaska
  37. USGS-USP000GXX22009-06-06 → 2009-06-09
    28 km sse of hasaki, japan
  38. USGS-USP000GXVT2009-06-05 → 2009-06-08
    105 km ese of shizunai-furukawach?, japan
  39. USGS-USP000GXUC2009-06-03 → 2009-06-06
    Earthquake magnitude 5.6 (mwc) in 19.553N 109.165W, depth 6 km at 032137Z jun 09
    Revilla Gigedo Islands Region
  40. USGS-USP000GXME2009-05-29 → 2009-06-01
    199 km sw of emiliano zapata, mexico
  41. USGS-USP000GXD32009-05-22 → 2009-05-25
    7 km ssw of iztapa, guatemala
  42. USGS-USP000GX1Q2009-05-12 → 2009-05-15
    74 km ese of inarajan village, guam
  43. USGS-USP000GWZ52009-05-10 → 2009-05-13
    Earthquake magnitude 6.1 (mwc) in 1.393N 085.169W, depth 6 km at 100116Z may 09
    Off the Coast of Ecuador
  44. USGS-USP000GWMQ2009-04-27 → 2009-04-30
    2 km wnw of pochotillo, mexico
  45. USGS-USP000GWBE2009-04-18 → 2009-04-21
    290 km ene of kuril’sk, russia
  46. USGS-USP000GW9J2009-04-17 → 2009-04-20
    Earthquake magnitude 5.7 (mwc) in 46.168N 151.704E, depth 49 km at 171451Z apr 09
    Kuril Islands
  47. USGS-USP000GW412009-04-14 → 2009-04-17
    223 km ssw of severo-kuril’sk, russia
  48. USGS-USP000GVV42009-04-07 → 2009-04-10
    Earthquake magnitude 6.9 (mwc) in 46.049N 151.548E, depth 31 km at 070423Z apr 09
    Kuril Islands
  49. USGS-USP000GV042009-03-15 → 2009-03-18
    Earthquake magnitude 5.8 (mwc) in 2.429N 095.124W, depth 10 km at 150314Z mar 09
    Galapagos Islands, Ecuador Region
  50. USGS-USP000GUXX2009-03-12 → 2009-03-15
    259 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.

Earthquake & tsunami bulletins in the North Pacific Ocean — page 31 · seahazards