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
    100 km s of nikolski, alaska
  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 · 1 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 · 0 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
    100 km s 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-US70006Q8N2019-12-23 → 2019-12-26
    201 km w of port mcneill, canada
  2. USGS-US70006Q8F2019-12-23 → 2019-12-26
    194 km w of port mcneill, canada
  3. USGS-US70006Q682019-12-23 → 2019-12-26
    109 km sw of ocós, guatemala
  4. USGS-US70006Q2N2019-12-23 → 2019-12-26
    235 km ne of fais, micronesia
  5. USGS-US70006NG52019-12-19 → 2019-12-22
    42 km ssw of la gomera, guatemala
  6. USGS-US60006PTP2019-12-10 → 2019-12-13
    Earthquake magnitude 5.8 (mww) in 30.727N 141.720E, depth 11 km at 101705Z dec 19
    Izu Islands, Japan Region
  7. USGS-US60006M7Z2019-12-05 → 2019-12-08
    177 km e of kuril’sk, russia
  8. USGS-US70006F6D2019-12-02 → 2019-12-05
    127 km sw of adak, alaska
  9. USGS-US70006EQM2019-11-30 → 2019-12-03
    49 km s of champerico, guatemala
  10. USGS-US70006CB62019-11-24 → 2019-11-27
    95 km se of adak, alaska
  11. USGS-US70006C6W2019-11-23 → 2019-11-26
    241 km se of tobi village, palau
  12. USGS-US70006A6Q2019-11-20 → 2019-11-23
    125 km sw of puerto madero, mexico
  13. USGS-US60006B3S2019-11-13 → 2019-11-16
    30 km ssw of puerto san josé, guatemala
  14. USGS-US6000632M2019-10-26 → 2019-10-29
    111 km sw of nikolski, alaska
  15. USGS-US70005EEE2019-09-10 → 2019-09-13
    223 km wsw of pelican, alaska
  16. USGS-US70005CBA2019-09-05 → 2019-09-08
    284 km wnw of bandon, oregon
  17. USGS-US700059QH2019-08-29 → 2019-09-01
    285 km w of bandon, oregon
  18. USGS-US700059EE2019-08-28 → 2019-08-31
    141 km ene of hachinohe, japan
  19. USGS-US600056R62019-08-18 → 2019-08-21
    167 km nne of saipan, northern mariana islands
  20. USGS-US6000556Z2019-08-14 → 2019-08-17
    272 km sse of cabo san lucas, mexico
  21. USGS-US600054892019-08-12 → 2019-08-15
    7 km ne of cabeza de toro, mexico
  22. USGS-US600050IF2019-08-04 → 2019-08-07
    61 km ene of namie, japan
  23. USGS-US60004XTC2019-07-31 → 2019-08-03
    38 km ssw of la libertad, el salvador
  24. USGS-US60004X4M2019-07-29 → 2019-08-01
    246 km sse of tateyama, japan
  25. USGS-US70004Q4U2019-07-21 → 2019-07-24
    119 km ssw of merizo village, guam
  26. USGS-US70004Q4Q2019-07-21 → 2019-07-24
    105 km ssw of merizo village, guam
  27. USGS-US70004LW52019-07-16 → 2019-07-19
    104 km s of merizo village, guam
  28. USGS-US70004G4B2019-07-09 → 2019-07-12
    92 km e of nikolski, alaska
  29. USGS-US70004B082019-07-05 → 2019-07-08
    258 km wnw of port mcneill, canada
  30. USGS-US700049SF2019-07-04 → 2019-07-07
    250 km wnw of port mcneill, canada
  31. USGS-US7000455L2019-06-26 → 2019-06-29
    4 km se of aserrío de gariché, panama
  32. USGS-NC732011812019-06-23 → 2019-06-26
    6KM ssw of petrolia, ca
  33. USGS-US600044QF2019-06-22 → 2019-06-25
    68 km wsw of puerto madero, mexico
  34. USGS-US70003TN52019-05-31 → 2019-06-03
    224 km sw of la cruz de loreto, mexico
  35. USGS-US70003T2N2019-05-30 → 2019-06-02
    32 km s of la libertad, el salvador
  36. USGS-US60003R2R2019-05-23 → 2019-05-26
    127 km wsw of adak, alaska
  37. USGS-US70003M2Q2019-05-16 → 2019-05-19
    41 km wsw of jiquilillo, nicaragua
  38. USGS-US70003K3P2019-05-12 → 2019-05-15
    1 km w of breñón, panama
  39. USGS-US70003AFB2019-04-22 → 2019-04-25
    223 km wsw of port mcneill, canada
  40. USGS-US700034D32019-04-11 → 2019-04-14
    143 km ne of miyako, japan
  41. USGS-US2000KAXV2019-04-05 → 2019-04-08
    Earthquake magnitude 5.8 (mww) in 1.451N 085.266W, depth 10 km at 051846Z apr 19
    Off the Coast of Ecuador
  42. USGS-US2000K6U42019-03-28 → 2019-03-31
    266 km ese of ozernovskiy, russia
  43. USGS-US1000JLPQ2019-03-26 → 2019-03-29
    104 km s of la libertad, el salvador
  44. USGS-HV708631172019-03-13 → 2019-03-16
    13 km sse of volcano, hawaii
  45. USGS-US1000JD8K2019-03-10 → 2019-03-13
    133 km e of iwaki, japan
  46. USGS-US1000J9S12019-03-02 → 2019-03-05
    187 km se of nemuro, japan
  47. USGS-US2000JGMA2019-02-12 → 2019-02-15
    Earthquake magnitude 6.0 (mww) in 19.020N 145.797E, depth 144 km at 121234Z feb 19
    Maug Islands Region, Northern Mariana Islands
  48. USGS-US2000JBUB2019-02-01 → 2019-02-04
    5 km sw of puerto madero, mexico
  49. USGS-US2000J94Y2019-01-26 → 2019-01-29
    64 km ese of hachinohe, japan
  50. USGS-US2000J6TJ2019-01-21 → 2019-01-24
    72 km s of san francisco del mar viejo, mexico

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 12 · seahazards