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-USP000APJY2001-09-21 → 2001-09-24
    88 km wsw of atka, alaska
  2. USGS-USP000APDY2001-09-18 → 2001-09-21
    39 km sw of puerto el triunfo, el salvador
  3. USGS-USP000APAN2001-09-16 → 2001-09-19
    209 km wsw of tofino, canada
  4. USGS-USP000AP7J2001-09-15 → 2001-09-18
    205 km wsw of tofino, canada
  5. USGS-USP000AP502001-09-14 → 2001-09-17
    211 km wsw of tofino, canada
  6. USGS-USP000AP252001-09-12 → 2001-09-15
    59 km ssw of nikolski, alaska
  7. USGS-USP000AP092001-09-11 → 2001-09-14
    221 km e of kuril’sk, russia
  8. USGS-USP000AN032001-08-25 → 2001-08-28
    45 km sse of punta de burica, panama
  9. USGS-USP000AMDW2001-08-13 → 2001-08-16
    87 km ene of misawa, japan
  10. USGS-USP000AMBA2001-08-12 → 2001-08-15
    38 km sw of masachapa, nicaragua
  11. USGS-USP000AM522001-08-10 → 2001-08-13
    30 km s of champerico, guatemala
  12. USGS-USP000AKKS2001-07-31 → 2001-08-03
    287 km wsw of adak, alaska
  13. USGS-USP000AJ2G2001-07-06 → 2001-07-09
    139 km se of kuril’sk, russia
  14. USGS-USP000AHAM2001-06-24 → 2001-06-27
    125 km sse of kuril’sk, russia
  15. USGS-USP000AGY62001-06-20 → 2001-06-23
    Earthquake magnitude 5.7 (mwc) in 45.522N 152.036E, depth 33 km at 200004Z jun 01
    East of the Kuril Islands
  16. USGS-USP000AGXN2001-06-19 → 2001-06-22
    Earthquake magnitude 5.7 (mwc) in 1.601N 085.161W, depth 33 km at 191412Z jun 01
    Off the Coast of Ecuador
  17. USGS-USP000AGPJ2001-06-15 → 2001-06-18
    Earthquake magnitude 6.0 (mwc) in 18.833N 146.983E, depth 33 km at 150617Z jun 01
    Pagan Region, Northern Mariana Islands
  18. USGS-USP000AGNT2001-06-14 → 2001-06-17
    Earthquake magnitude 5.9 (mwc) in 18.852N 146.810E, depth 33 km at 142331Z jun 01
    Pagan Region, Northern Mariana Islands
  19. USGS-USP000AGN92001-06-14 → 2001-06-17
    235 km wsw of adak, alaska
  20. USGS-USP000AGMN2001-06-14 → 2001-06-17
    235 km wsw of adak, alaska
  21. USGS-USP000AFRH2001-05-29 → 2001-06-01
    Earthquake magnitude 5.5 (mwc) in 19.853N 109.165W, depth 48 km at 291848Z may 01
    Revilla Gigedo Islands Region
  22. USGS-USP000AFG12001-05-25 → 2001-05-28
    114 km sse of kuril’sk, russia
  23. USGS-USP000AFAD2001-05-21 → 2001-05-24
    Earthquake magnitude 5.5 (mwc) in 2.774N 095.358W, depth 10 km at 211643Z may 01
    Galapagos Islands, Ecuador Region
  24. USGS-USP000AF7K2001-05-20 → 2001-05-23
    33 km sw of el colomo, mexico
  25. USGS-USP000AEPE2001-05-09 → 2001-05-12
    110 km ese of akutan, alaska
  26. USGS-USP000AEMF2001-05-08 → 2001-05-11
    3 km s of san vicente, el salvador
  27. USGS-USP000AEKG2001-05-08 → 2001-05-11
    18 km ssw of cuyutlán, mexico
  28. USGS-USP000AE722001-04-30 → 2001-05-03
    54 km e of shikotan, russia
  29. USGS-USP000AE6H2001-04-29 → 2001-05-02
    45 km ssw of el naranjo, mexico
  30. USGS-USP000AE042001-04-26 → 2001-04-29
    Earthquake magnitude 5.7 (mwc) in 8.338N 103.210W, depth 10 km at 261859Z apr 01
    Northern East Pacific Rise
  31. USGS-USP000ADZY2001-04-26 → 2001-04-29
    37 km se of nemuro, japan
  32. USGS-USP000ADFB2001-04-17 → 2001-04-20
    229 km wsw of adak, alaska
  33. USGS-USP000AD8Z2001-04-14 → 2001-04-17
    Earthquake magnitude 6.0 (mwc) in 30.092N 141.768E, depth 10 km at 142327Z apr 01
    Izu Islands, Japan Region
  34. USGS-USP000AD6G2001-04-13 → 2001-04-16
    69 km ssw of nemuro, japan
  35. USGS-USP000ACEY2001-04-02 → 2001-04-05
    25 km ene of hachinohe, japan
  36. USGS-USP000ACDY2001-04-02 → 2001-04-05
    Earthquake magnitude 5.7 (mwb) in 11.848N 147.325E, depth 56 km at 020650Z apr 01
    South of the Mariana Islands
  37. USGS-USP000AC5V2001-03-29 → 2001-04-01
    46 km sw of jiquilisco, el salvador
  38. USGS-USP000ABX12001-03-23 → 2001-03-26
    111 km ene of shikotan, russia
  39. USGS-USP000ABPG2001-03-18 → 2001-03-21
    23 km sse of jiquilillo, nicaragua
  40. USGS-USP000ABG22001-03-16 → 2001-03-19
    22 km sw of puerto el triunfo, el salvador
  41. USGS-USP000AAM72001-02-28 → 2001-03-03
    24 km s of zacatecoluca, el salvador
  42. USGS-USP000AA9U2001-02-24 → 2001-02-27
    105 km ese of namie, japan
  43. USGS-USP000A9TS2001-02-17 → 2001-02-20
    151 km ssw of hydaburg, alaska
  44. USGS-USP000A9S22001-02-17 → 2001-02-20
    45 km sw of jiquilisco, el salvador
  45. USGS-USP000A9JV2001-02-13 → 2001-02-16
    5 km s of cojutepeque, el salvador
  46. USGS-USP000A97J2001-02-07 → 2001-02-10
    32 km ssw of zacatecoluca, el salvador
  47. USGS-USP000A8WJ2001-02-02 → 2001-02-05
    68 km sw of puerto el triunfo, el salvador
  48. USGS-USP000A8V12001-02-01 → 2001-02-04
    94 km wsw of adak, alaska
  49. USGS-USP000A8CN2001-01-25 → 2001-01-28
    54 km sw of puerto el triunfo, el salvador
  50. USGS-USP000A88B2001-01-23 → 2001-01-26
    Earthquake magnitude 5.6 (mwc) in 29.992N 142.036E, depth 55 km at 231624Z jan 01
    Izu Islands, Japan 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 43 · seahazards