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
135
vs previous 12 (140)
-4%
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
    84 km ssw of nikolski, alaska
  2. USGS-US7000TDMPin force2026-09-02
    71 km wsw of puerto madero, mexico

Longest in force

  1. USGS-US7000TDMPin force2026-09-02 · 1 d
    71 km wsw of puerto madero, mexico
  2. USGS-US7000TDVTin force2026-09-03 · 0 d
    84 km ssw of nikolski, alaska

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-US7000TC182026-08-26 → 2026-08-29
    209 km ese of ōfunato, japan
  2. USGS-US6000TMZ62026-08-23 → 2026-08-26
    32 km ssw of honchō, japan
  3. USGS-US6000TMTA2026-08-22 → 2026-08-25
    4 km n of toride, japan
  4. USGS-US6000TLKL2026-08-18 → 2026-08-21
    95 km sw of puerto madero, mexico
  5. USGS-USD0015EDQ2026-08-17 → 2026-08-20
    72 km e of petropavlovsk-kamchatsky, russia
  6. USGS-US6000TL362026-08-15 → 2026-08-18
    Earthquake magnitude 5.6 (mww) in 23.461N 142.835E, depth 55 km at 151932Z aug 26
    Volcano Islands, Japan Region
  7. USGS-US6000TKCB2026-08-13 → 2026-08-16
    69 km ssw of chirilagua, el salvador
  8. USGS-US6000TJJJ2026-08-10 → 2026-08-13
    Earthquake magnitude 5.5 (mb) in 0.311N 114.648W, depth 10 km at 100541Z aug 26
    East Central Pacific Ocean
  9. USGS-US6000TJAJ2026-08-08 → 2026-08-11
    47 km ene of noda, japan
  10. USGS-US6000THEJ2026-08-01 → 2026-08-04
    192 km sw of port mcneill, canada
  11. USGS-US6000THDK2026-08-01 → 2026-08-04
    63 km e of mutsu, japan
  12. USGS-US6000TGAU2026-07-28 → 2026-07-31
    54 km sw of brisas barra de suchiate, mexico
  13. USGS-US7000T3FM2026-07-26 → 2026-07-29
    103 km se of atka, alaska
  14. USGS-US7000T1W22026-07-20 → 2026-07-23
    214 km sw of port mcneill, canada
  15. USGS-US7000T1TP2026-07-19 → 2026-07-22
    77 km sw of puerto madero, mexico
  16. USGS-US7000T1N52026-07-18 → 2026-07-21
    71 km sw of puerto madero, mexico
  17. USGS-US7000T1CC2026-07-17 → 2026-07-20
    96 km sw of puerto madero, mexico
  18. USGS-US7000T1BU2026-07-17 → 2026-07-20
    60 km wsw of puerto madero, mexico
  19. USGS-US6000T9TF2026-07-03 → 2026-07-06
    299 km ssw of severo-kuril’sk, russia
  20. USGS-US6000T9EJ2026-07-01 → 2026-07-04
    54 km ene of noda, japan
  21. USGS-US6000T8YT2026-06-29 → 2026-07-02
    226 km w of langlois, oregon
  22. USGS-US6000T8QD2026-06-27 → 2026-06-30
    54 km ene of noda, japan
  23. USGS-US6000T8CY2026-06-26 → 2026-06-29
    2 km ese of yōkaichiba, japan
  24. USGS-US6000T7ZQ2026-06-24 → 2026-06-27
    35 km ene of noda, japan
  25. USGS-US7000SUSB2026-06-20 → 2026-06-23
    156 km ese of petropavlovsk-kamchatsky, russia
  26. USGS-US7000SUII2026-06-19 → 2026-06-22
    164 km e of petropavlovsk-kamchatsky, russia
  27. USGS-US7000SUI32026-06-19 → 2026-06-22
    141 km ese of petropavlovsk-kamchatsky, russia
  28. USGS-US7000SS1G2026-06-10 → 2026-06-13
    156 km ese of petropavlovsk-kamchatsky, russia
  29. USGS-US7000SR7L2026-06-07 → 2026-06-10
    111 km se of severo-kuril’sk, russia
  30. USGS-US7000SQ932026-06-03 → 2026-06-06
    143 km wsw of pistol river, oregon
  31. USGS-US7000SPRU2026-06-01 → 2026-06-04
    Earthquake magnitude 5.7 (mww) in 30.662N 141.740E, depth 11 km at 010334Z jun 26
    Izu Islands, Japan Region
  32. USGS-HV749664272026-05-23 → 2026-05-26
    13 km s of honaunau-napoopoo, hawaii
  33. USGS-US6000SXWQ2026-05-15 → 2026-05-18
    41 km ese of ōfunato, japan
  34. USGS-US6000SWF42026-05-09 → 2026-05-12
    296 km wsw of adak, alaska
  35. USGS-AKA2026JCUFOY2026-05-09 → 2026-05-12
    Earthquake magnitude 6.1 (ml) in 50.981N 179.214E, depth 16 km at 090442Z may 26
    Rat Islands, Aleutian Islands, Alaska
  36. USGS-US7000SI512026-05-04 → 2026-05-07
    0 km sw of san juan jicayán, mexico
  37. USGS-US6000SSSG2026-04-25 → 2026-04-28
    88 km se of akutan, alaska
  38. USGS-US6000SRVU2026-04-21 → 2026-04-24
    121 km e of noda, japan
  39. USGS-US7000SH0A2026-04-20 → 2026-04-23
    100 km e of miyako, japan
  40. USGS-US6000SRI72026-04-20 → 2026-04-23
    102 km ene of miyako, japan
  41. USGS-US6000SQ5Z2026-04-15 → 2026-04-18
    72 km sw of tamarindo, costa rica
  42. USGS-US7000S7W62026-03-26 → 2026-03-29
    2 km wsw of ciudad sandino, nicaragua
  43. USGS-US7000S7U42026-03-26 → 2026-03-29
    123 km e of yamada, japan
  44. USGS-US6000SHC92026-03-19 → 2026-03-22
    165 km s of severo-kuril’sk, russia
  45. USGS-US7000S36M2026-03-09 → 2026-03-12
    19 km ne of otobe, japan
  46. USGS-US7000S2ZX2026-03-08 → 2026-03-11
    157 km sse of vilyuchinsk, russia
  47. USGS-US7000S2Z52026-03-08 → 2026-03-11
    95 km e of yamada, japan
  48. USGS-US7000S2BN2026-03-05 → 2026-03-08
    92 km s of nikolski, alaska
  49. USGS-US7000S1CQ2026-03-02 → 2026-03-05
    Earthquake magnitude 6.0 (mww) in 22.973N 144.210E, depth 20 km at 020355Z mar 26
    Volcano Islands, Japan Region
  50. USGS-US7000S0DQ2026-02-26 → 2026-03-01
    190 km sse of vilyuchinsk, 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.

Earthquake & tsunami bulletins in the North Pacific Ocean · seahazards