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 · 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
    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-USC000LQ712013-12-23 → 2013-12-26
    118 km e of hasaki, japan
  2. USGS-USC000LPAH2013-12-21 → 2013-12-24
    12 km s of asahi, japan
  3. USGS-USC000LMMC2013-12-17 → 2013-12-20
    Earthquake magnitude 6.2 (mww) in 20.773N 146.790E, depth 9 km at 172338Z dec 13
    Mariana Islands Region
  4. USGS-USC000LKGY2013-12-14 → 2013-12-17
    6 km s of asahi, japan
  5. USGS-USC000LJV72013-12-13 → 2013-12-16
    40 km s of el rosario, el salvador
  6. USGS-USB000LDS92013-12-08 → 2013-12-11
    134 km se of kuril’sk, russia
  7. USGS-USB000L8N72013-12-01 → 2013-12-04
    216 km wsw of pistol river, oregon
  8. USGS-USB000L5Z12013-11-25 → 2013-11-28
    247 km e of kuril’sk, russia
  9. USGS-USB000L22E2013-11-19 → 2013-11-22
    80 km se of colonia, micronesia
  10. USGS-USB000KZUJ2013-11-16 → 2013-11-19
    3 km e of chiba, japan
  11. USGS-USB000KYPF2013-11-15 → 2013-11-18
    81 km e of mutsu, japan
  12. USGS-USB000KW1X2013-11-12 → 2013-11-15
    172 km s of ust’-kamchatsk staryy, russia
  13. USGS-USB000KVCA2013-11-09 → 2013-11-12
    3 km wsw of moriya, japan
  14. USGS-USC000KP6N2013-10-27 → 2013-10-30
    Earthquake magnitude 5.5 (mwb) in 37.088N 144.573E, depth 20 km at 271813Z oct 13
    Off the East Coast of Honshu, Japan
  15. USGS-USC000KNDD2013-10-25 → 2013-10-28
    Earthquake magnitude 5.5 (mb) in 37.106N 144.672E, depth 10 km at 252127Z oct 13
    Off the East Coast of Honshu, Japan
  16. USGS-USC000KN4N2013-10-25 → 2013-10-28
    Earthquake magnitude 7.1 (mww) in 37.156N 144.661E, depth 35 km at 251710Z oct 13
    Off the East Coast of Honshu, Japan
  17. USGS-USB000K0362013-09-26 → 2013-09-29
    108 km wsw of puerto madero, mexico
  18. USGS-USC000JUWV2013-09-15 → 2013-09-18
    77 km ssw of atka, alaska
  19. USGS-USC000JUE62013-09-14 → 2013-09-17
    89 km ssw of atka, alaska
  20. USGS-USB000JKMW2013-09-07 → 2013-09-10
    7 km ese of ignacio lópez rayón, mexico
  21. USGS-USB000JIGI2013-09-05 → 2013-09-08
    50 km w of sardinal, costa rica
  22. USGS-USB000JI7F2013-09-05 → 2013-09-08
    85 km ssw of atka, alaska
  23. USGS-USB000JGUZ2013-09-04 → 2013-09-07
    82 km ssw of atka, alaska
  24. USGS-USB000JGUU2013-09-04 → 2013-09-07
    80 km ssw of atka, alaska
  25. USGS-USB000JGRQ2013-09-04 → 2013-09-07
    90 km ssw of atka, alaska
  26. USGS-USB000JGJU2013-09-04 → 2013-09-07
    81 km ssw of atka, alaska
  27. USGS-USB000JGFH2013-09-04 → 2013-09-07
    230 km wnw of port mcneill, canada
  28. USGS-USB000JGCI2013-09-03 → 2013-09-06
    234 km wnw of port mcneill, canada
  29. USGS-USB000JG6B2013-09-03 → 2013-09-06
    243 km wnw of port mcneill, canada
  30. USGS-USB000JE9L2013-08-31 → 2013-09-03
    109 km ese of adak, alaska
  31. USGS-USB000JE9F2013-08-31 → 2013-09-03
    118 km ssw of atka, alaska
  32. USGS-USB000JFAT2013-08-30 → 2013-09-02
    109 km sw of atka, alaska
  33. USGS-USB000JDT72013-08-30 → 2013-09-02
    101 km sw of atka, alaska
  34. USGS-USB000J83T2013-08-21 → 2013-08-24
    5 km ese of barrio nuevo de los muertos, mexico
  35. USGS-USB000J2752013-08-13 → 2013-08-16
    101 km wsw of bahía solano, colombia
  36. USGS-USB000J0ZB2013-08-12 → 2013-08-15
    141 km w of sardinal, costa rica
  37. USGS-USB000IW7Z2013-08-06 → 2013-08-09
    29 km wsw of tiquisate, guatemala
  38. USGS-USB000IV7T2013-08-04 → 2013-08-07
    86 km wsw of vernon, canada
  39. USGS-USB000IV4W2013-08-04 → 2013-08-07
    54 km ese of ishinomaki, japan
  40. USGS-USB000IHW92013-07-19 → 2013-07-22
    55 km e of namie, japan
  41. USGS-USB000I8NX2013-07-08 → 2013-07-11
    27 km se of la libertad, el salvador
  42. USGS-USB000I8ES2013-07-07 → 2013-07-10
    246 km wsw of adak, alaska
  43. USGS-USB000I5LC2013-07-03 → 2013-07-06
    193 km se of nikolski, alaska
  44. USGS-USC000HRNR2013-06-15 → 2013-06-18
    44 km w of masachapa, nicaragua
  45. USGS-USB000HCVG2013-06-04 → 2013-06-07
    239 km e of kuril’sk, russia
  46. USGS-USB000H0WG2013-05-21 → 2013-05-24
    143 km ese of petropavlovsk-kamchatsky, russia
  47. USGS-USB000H0HW2013-05-21 → 2013-05-24
    128 km se of petropavlovsk-kamchatsky, russia
  48. USGS-USB000H0HD2013-05-21 → 2013-05-24
    123 km se of petropavlovsk-kamchatsky, russia
  49. USGS-USB000H0FH2013-05-21 → 2013-05-24
    117 km ese of petropavlovsk-kamchatsky, russia
  50. USGS-USB000H0FE2013-05-21 → 2013-05-24
    132 km se of petropavlovsk-kamchatsky, 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 — page 20 · seahazards