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 · 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.

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-US1000EU392018-06-18 → 2018-06-21
    12 km sw of guanagazapa, guatemala
  2. USGS-US1000ED0T2018-05-27 → 2018-05-30
    160 km ese of akutan, alaska
  3. USGS-US1000EABY2018-05-23 → 2018-05-26
    111 km ssw of ust’-kamchatsk staryy, russia
  4. USGS-US1000E9MU2018-05-22 → 2018-05-25
    84 km ese of inarajan village, guam
  5. USGS-US1000E7FH2018-05-17 → 2018-05-20
    70 km s of nemuro, japan
  6. USGS-US1000E0J12018-05-08 → 2018-05-11
    276 km ese of chiniak, alaska
  7. USGS-HV701165562018-05-04 → 2018-05-07
    18 km ssw of leilani estates, hawaii
  8. USGS-HV701164112018-05-04 → 2018-05-07
    18 km sw of leilani estates, hawaii
  9. USGS-US1000DR712018-04-24 → 2018-04-27
    12 km ene of nemuro, japan
  10. USGS-US1000DR322018-04-24 → 2018-04-27
    42 km sw of jiquilillo, nicaragua
  11. USGS-US2000DXXE2018-04-11 → 2018-04-14
    57 km sse of salina cruz, mexico
  12. USGS-US1000DCRU2018-04-02 → 2018-04-05
    24 km sw of puerto el triunfo, el salvador
  13. USGS-US1000D8VK2018-03-25 → 2018-03-28
    276 km sse of tateyama, japan
  14. USGS-US2000DDM52018-03-07 → 2018-03-10
    Earthquake magnitude 5.8 (mww) in 45.766N 152.382E, depth 32 km at 070440Z mar 18
    East of the Kuril Islands
  15. USGS-US2000D7PU2018-02-25 → 2018-02-28
    65 km e of namie, japan
  16. USGS-US2000D4LG2018-02-19 → 2018-02-22
    4 km sse of santiago tetepec, mexico
  17. USGS-US2000D3M02018-02-17 → 2018-02-20
    8 km se of josé maría morelos, mexico
  18. USGS-US2000D3KM2018-02-16 → 2018-02-19
    4 km s of pinotepa de don luis, mexico
  19. USGS-US2000D18Y2018-02-13 → 2018-02-16
    150 km sse of san jose village, northern mariana islands
  20. USGS-US2000D18H2018-02-13 → 2018-02-16
    147 km sse of san jose village, northern mariana islands
  21. USGS-US2000D0P12018-02-11 → 2018-02-14
    154 km se of san jose village, northern mariana islands
  22. USGS-US2000CZIG2018-02-09 → 2018-02-12
    30 km s of barra de navidad, mexico
  23. USGS-US2000CRTJ2018-01-31 → 2018-02-03
    53 km se of pedasí, panama
  24. USGS-US2000CQRL2018-01-28 → 2018-01-31
    252 km w of bandon, oregon
  25. USGS-US2000CQGN2018-01-27 → 2018-01-30
    47 km se of pedasí, panama
  26. USGS-US2000CPBA2018-01-25 → 2018-01-28
    175 km w of ferndale, california
  27. USGS-US2000CNNL2018-01-24 → 2018-01-27
    99 km ene of misawa, japan
  28. NAVAREA XII 35/182018-01-23 → 2018-01-23
    An earthquake occurred at 230932Z jan with a preliminary magnitude of 8.0, in 56-00N 149-12W
    Eastern North Pacific
  29. USGS-US2000CMY32018-01-23 → 2018-01-26
    261 km se of chiniak, alaska
  30. USGS-US2000CJYJ2018-01-16 → 2018-01-19
    63 km sw of san juan del sur, nicaragua
  31. USGS-US1000C2AX2018-01-09 → 2018-01-12
    273 km nnw of puerto ayora, ecuador
  32. USGS-US1000BV112017-12-22 → 2017-12-25
    158 km ne of petropavlovsk-kamchatsky, russia
  33. USGS-US1000BU462017-12-21 → 2017-12-24
    Earthquake magnitude 5.8 (mww) in 29.290N 142.648E, depth 10 km at 210300Z dec 17
    Izu Islands, Japan Region
  34. USGS-US2000C2DU2017-12-09 → 2017-12-12
    50 km nw of fais, micronesia
  35. USGS-US2000C1ZN2017-12-08 → 2017-12-11
    45 km nw of fais, micronesia
  36. USGS-US2000C1WT2017-12-08 → 2017-12-11
    50 km nw of fais, micronesia
  37. USGS-US2000BPKQ2017-11-16 → 2017-11-19
    Earthquake magnitude 5.8 (mww) in 32.220N 140.550E, depth 59 km at 160943Z nov 17
    Izu Islands, Japan Region
  38. USGS-US2000BMHE2017-11-13 → 2017-11-16
    18 km w of parrita, costa rica
  39. USGS-US2000BMFD2017-11-12 → 2017-11-15
    Earthquake magnitude 5.9 (mww) in 37.935N 144.931E, depth 10 km at 122224Z nov 17
    Off the East Coast of Honshu, Japan
  40. USGS-US2000BKRV2017-11-09 → 2017-11-12
    Earthquake magnitude 6.0 (mww) in 32.521N 141.438E, depth 12 km at 090742Z nov 17
    Izu Islands, Japan Region
  41. USGS-US2000BHP82017-11-03 → 2017-11-06
    183 km sw of josé maría morelos, mexico
  42. USGS-US1000ARZF2017-10-14 → 2017-10-17
    12 km e of san mateo del mar, mexico
  43. USGS-US2000B20F2017-10-06 → 2017-10-09
    17 km ene of iwaki, japan
  44. USGS-US2000B1V82017-10-06 → 2017-10-09
    259 km ese of ishinomaki, japan
  45. USGS-US2000AV312017-09-26 → 2017-09-29
    73 km ese of hachinohe, japan
  46. USGS-US2000ATWE2017-09-24 → 2017-09-27
    80 km ssw of cabeza de toro, mexico
  47. USGS-US2000ATJV2017-09-23 → 2017-09-26
    7 km nne of ixtepec, mexico
  48. USGS-US2000ATIS2017-09-23 → 2017-09-26
    80 km ssw of la gloria, mexico
  49. USGS-US2000ATBF2017-09-22 → 2017-09-25
    218 km w of ferndale, california
  50. USGS-US2000ARXV2017-09-20 → 2017-09-23
    282 km ese of kamaishi, japan

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.